电源管理器件 - - 降压转换器

Buck Synchronous Integrated-switch Regulators（39）
Buck Non-Synch. Integrated-switch Regulators（80）
Buck Synchronous Switching Controllers（30）
Buck Non-Synch. Switching Controllers（10）
Switched Capacitor Regulators（6）
Buck Synchronous Integrated-switch Regulators（39）
Base Part Number Output Current Input Min Voltage Input Max Voltage Output Min Output Max Frequency Min Frequency Max Efficiency (peak) On/Off Pin Error Flag SoftStart Sync Pin Inverting Flyback RegType Temperature Min Temperature Max Adjustable Output Adj Switch Frequency PWM Mode Topology Special Features Step-Down Multiple Output Capability Output Power Output Voltage Output Range Switching Frequency Feedback Voltage Regulator Family AEC Q-100 Automotive Grade Automotive Selection Guide PowerWise Synchronous Rectification
LM20125 5000 2.95 5.5 0.8 5 Undefined Undefined 96 Yes Yes Yes No Undefined Undefined Switching Regulator -40 125 Yes No Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined 0.8V to 5.0V 500 0.8 LM20k     Yes Yes
LM20145 5000 2.95 5.5 0.8 5 260 750 96 Yes Yes Yes No Undefined Undefined Switching Regulator -40 125 Yes Yes Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined 0.8V to 5.0V Undefined 0.8 LM20k     Yes Yes
LM20124 4000 2.95 5.5 0.8 5 Undefined Undefined 96 Yes Yes Yes No Undefined Undefined Switching Regulator -40 125 Yes No Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined 0.8V to 5.0V 1000 0.8 LM20k     Yes Yes
LM20134 4000 2.95 5.5 0.8 5 460 1500 96 Yes Yes Yes Yes Undefined Undefined Switching Regulator -40 125 Yes Yes Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined 0.8V to 5.0V 410 0.8 LM20k     Yes Yes
LM20144 4000 2.95 5.5 0.8 5 500 1000 96 Yes Yes Yes No Undefined Undefined Switching Regulator -40 125 Yes Yes Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined 0.8V to 5.0V Undefined 0.8 LM20k     Yes Yes
LM20154 4000 2.95 5.5 0.8 5 Undefined Undefined 96 Yes Yes Yes No Undefined Undefined Switching Regulator -40 125 Yes No Current Mode Control Synchronous Buck Sync Output Yes No Undefined Undefined 0.8V to 5.0V 1000 0.8 LM20k     Yes Yes
LM2854 4000 2.95 5.5 0.8 5 500 1000 98 Yes No Yes No No No Switching Regulator -40 85 Yes No Undefined Synchronous Buck Undefined Yes No Undefined Undefined Undefined Undefined Undefined SIMPLE SWITCHER Undefined No Yes Yes
LM20123 3000 2.95 5.5 0.8 5 Undefined Undefined 96 Yes Yes Yes No Undefined Undefined Switching Regulator -40 125 Yes No Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined 0.8V to 5.0V 1500 0.8 LM20k     Yes Yes
LM20133 3000 2.95 5.5 0.8 5 460 1500 96 Yes Yes Yes Yes Undefined Undefined Switching Regulator -40 125 Yes Yes Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined 0.8V to 5.0V 410 0.8 LM20k     Yes Yes
LM20143 3000 2.95 5.5 0.8 5 510 1500 96 Yes Yes Yes No Undefined Undefined Switching Regulator -40 125 Yes Yes Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined 0.8V to 5.0V Undefined 0.8 LM20k     Yes Yes
LM20323 3000 4.5 36 0.8 32 Undefined Undefined 94 Yes Yes Yes No No No Switching Regulator -40 125 Yes No Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined Undefined 500 0.8 LM20k Undefined Yes Yes Yes
LM20333 3000 4.5 36 0.8 32 200 1500 94 Yes Yes Yes Yes No No Switching Regulator -40 125 Yes Yes Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined Undefined Undefined Undefined LM20k Undefined Yes Yes Yes
LM20343 3000 4.5 36 0.8 32 250 1000 94 Yes Yes Yes Yes No No Switching Regulator -40 125 Yes Yes Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined Undefined Undefined 0.8 LM20k Undefined Yes Yes Yes
LM2650 3000 4.5 18 1.5 16 90 300 95 Yes No Yes Yes No No Switching Regulator -40 125 Yes Yes Current Synchronous Buck Max. Iq at shutdown is 25uA over full temp. range Yes No Undefined - 1.5V to16V 90 Undefined Undefined       Yes
LM2853 3000 3 5.5 1.5| 3| 1.8| 2.5| 0.8| 1.2| 1| 3.3 1.5| 3| 1.8| 2.5| 0.8| 1.2| 1| 3.3 550 550 95 Yes No Yes No No No Switching Regulator -40 125 No No Voltage Synchronous Buck Internal compensation, low standby current Yes No Undefined 1.5| 3| 1.8| 2.5| 0.8| 1.2| 1| 3.3 1.5| 3| 1.8| 2.5| 0.8| 1.2| 1| 3.3 Undefined Undefined SIMPLE SWITCHER     Yes Yes
LM2655 2500 4 14 1.24| 3.3 13| 3.3 300 300 90 Yes No Yes No No No Switching Regulator -40 125 Yes| No No Current Synchronous Buck Max. Iq at shutdown is 20uA over full temp range Yes No - -| 3.3 1.24V to 13V 300 Undefined Undefined       Yes
LM3102 2500 4.5 42 0.8 38 Undefined 1000 87 Yes No Yes No No Yes Switching Regulator -40 125 Yes Yes COT Synchronous Buck FCIC Yes No Undefined Undefined .8-38V 1000   SIMPLE SWITCHER   Yes Yes Yes
LM20242 2000 4.5 36 0.8 32 100 1000 96 Yes Yes Yes No No No Switching Regulator -40 125 Yes Yes Current Mode Control Synchronous Buck Undefined Yes No Undefined Undefined Undefined 1000 0.8 LM20k     Yes Yes
LM2852 2000 2.85 5.5 1.5| 1.8| 2.5| 0.8| 1.2| 1| 3.3 1.5| 1.8| 2.5| 0.8| 1.2| 1| 3.3 500| 1500 500| 1500 95 Yes No Yes No No No Switching Regulator -40 125 No No Voltage Synchronous Buck Internal compensation, low standby current Yes No Undefined 1.5| 1.8| 2.5| 0.8| 1.2| 1| 3.3 0.8V to 3.3V 500 Undefined SIMPLE SWITCHER     Yes Yes
LM2651 1500 4 14 1.8| 2.5| 1.24| 3.3 13| 1.8| 2.5| 3.3 300 300 87| 97 Yes No Yes No No No Switching Regulator -40 125 Yes| No No Current Synchronous Buck Max. Iq at shutdown is 20uA over full temp range, 7uA typical Yes No - -| 1.8| 2.5| 3.3 1.24V to 13V 300 Undefined Undefined       Yes
LM2653 1500 4 14 1.5 5 300 300 97 Yes Yes Yes No No No Switching Regulator -40 125 Yes No Current Synchronous Buck Max. Iq at shutdown is 20uA over full temp range, 7uA typical Yes No Undefined Undefined 1.5V to 5.0V 300 Undefined Undefined       Yes
LM3100 1500 4.5 36 0.8 32 Undefined 1000 86 Yes No Yes No No No Switching Regulator -40 125 Yes Yes Constant on-time Synchronous Buck Vin feed forward and Current Injection compensation, SIMPLE SWITCHER synchronous regulator Yes No Undefined Undefined 0.8V to 32V 1000 Undefined SIMPLE SWITCHER   Yes Yes Yes
LM3678 1000 2.5 5.5 0.8 1.2 2700 3600 85 Yes Yes Yes       Switching Regulator -30 85 No   Voltage Synchronous Buck   Yes Yes     0.8/1.2 3300   SIMPLE SWITCHER Undefined No Yes Yes
LM3691 1000 2.3 5.5 0.75 1.8 4000 4000 95 Yes No Yes No No No Switching Regulator -30 85 No No Voltage Synchronous Buck Pin-selectable PWM/ECO mode, Typ. Iq in shutdown is 0.03uA, 1% output accuracy, only 3external components Yes No     0.75V to 1.8V 4000 Undefined Undefined Undefined No Yes Yes
LM3686 900 2.7 5.5 0.7 3 2400 3400 92 Yes           Power Management Unit -30 85 No No AUTO BUCK, LILO, LDO   Yes Yes           SIMPLE SWITCHER 0      
LM3103 750 4.5 42 0.6 38 Undefined 1000 85 Yes No Yes No No Yes Switching Regulator -40 125 Yes Yes COT Synchronous Buck FCIC Yes No Undefined Undefined .6-38V 1000   SIMPLE SWITCHER   Yes Yes Yes
LM3671 600 2.7 5.5 1.25| 1.6| 1.5| 1.1| 1.8| 2.5| 1.875| 1.375| 2.8| 1.2| 3.3 1.25| 1.6| 1.5| 1.8| 2.5| 1.875| 1.375| 2.8| 1.2| 3.3 2000 2000 96 Yes No Yes No No No Switching Regulator -30 85 Yes| No No Voltage with input feedforward Synchronous Buck Pin-selectable PWM/PFM modes, Iq=15uA, 100% duty cycle, internal compensation, ceramic-cap stable, only 3 external components Yes No Undefined 1.25| 1.6| 1.5| 1.8| Undefined| 2.5| 1.875| 1.375| 2.8| 1.2| 3.3 1.1V to 3.3V 2000 Undefined Undefined     Yes Yes
LM3674 600 2.7 5.5 1.5| 1.1| 1.8| 1.875| 2.8| 1.2 1.5| 1.8| 1.875| 2.8| 1.2| 3.3 2000 2000 96 Yes No Yes No No No Switching Regulator -30 85 Yes| No No Voltage with input feedforward Synchronous Buck Pin-selectable PWM/PFM modes, Iq=15uA, 100% duty cycle, internal compensation, ceramic-cap stable, only 3 external components Yes No Undefined 1.5| 1.8| Undefined| 1.875| 2.8| 1.2 Undefined 2000 Undefined Undefined     Yes Yes
LM3676 600 2.9 5.5 1.1 3.3 2000 2000 93 Yes No Yes No No No Switching Regulator -30 85 Yes No Voltage with input feed forward Synchronous Buck Pin-selectable PWM/PFM modes, Iq=15uA, 100% duty cycle, internal compensation, ceramic-cap stable, only 3 external components Yes No     1.1V to 3.3V 2000 Undefined Undefined       Yes
LM3677 600 2.7 5.5 1.2 3.3 3000 3000 93 Yes No Yes No No No Switching Regulator -30 85 Yes No Auto Synchronous Buck   Yes No     1.2V to 3.3V 3000 Undefined| null Undefined | null | null Yes| null Yes| null
LM2619 500 2.8 5.5 1.5 3.6 500 1000 96 Yes No Yes Yes No No Switching Regulator -25 85 Yes Yes Current Synchronous Buck Pin-selectable PWM/PFM modes, Max Iq in shutdown is 3uA, 2% output accuracy Yes No Undefined Undefined 1.5V to 3.6V 600 Undefined Undefined       Yes
LM3661 450 2.7 5.5 1.05 1.35| 1.4 600 600 92 Yes No Yes Yes No No Switching Regulator -30 85 Yes No Current Synchronous Buck and LDO Pin-selectable output voltage, pin-selectable current limit, pin-selectable Buck/LDO operation Yes No Undefined Undefined 1.05V to 1.4V 600 Undefined Undefined       Yes
LM2608 400 2.8 5.5 1.8| 1.3 1.8| 1.3 500 1000 91 Yes No Yes Yes No No Switching Regulator -30 85 No Yes Current Synchronous Buck Pin-selectable PWM/PFM modes, Max Iq in shutdown is 3uA, 2% output accuracy, Linear micropower operation mode, Pin-selectable output voltage Yes Yes Undefined 1.8 1.8V or 1.5V 600 Undefined Undefined       Yes
LM2614 400 2.8 5.5 1 3.6 500 1000 96 Yes No Yes Yes No No Switching Regulator -30 85 Yes Yes Current Synchronous Buck Pin-selectable PWM/PFM modes, Max Iq in shutdown is 3uA, 2% output accuracy Yes No Undefined Undefined 1.0V to 3.6V 600 Undefined Undefined        
LM2618 400| 300 2.8 5.5 1.8 1.92 500 1000 91 Yes No Yes Yes No No Switching Regulator -25 85 Yes Yes Current Synchronous Buck Pin-selectable PWM/PFM modes, Synchronous rectification in PFM mode, Max Iq in shutdown is 3uA, 2% output accuracy Yes No Undefined Undefined 1.8V, 1.83V, 1.87V, 1.92V 1000 Undefined Undefined | null | null | null Yes| null
LM3670 350 2.5 5.5 1.6| 1.5| 0.7| 1.8| 1.875| 1.2| 3.3 1.6| 1.5| 1.8| 2.5| 1.875| 1.2| 3.3 1000 1000 95 Yes No Yes No No No Switching Regulator -40 85 Yes| No No Voltage with input feedfoward Synchronous Buck Pin-selectable PWM/PFM modes, Iq=15uA, 100% duty cycle, internal compensation, ceramic-cap stable, only 3 external components Yes No Undefined 1.5| 1.6| 1.8| Undefined| 1.875| 3.3 0.7V to 3.3V 1000 Undefined Undefined     Yes Yes
LM3673 350 2.7 5.5 1.5| 1.1| 1.8| 1.875| 1.2 1.5| 1.8| 1.875| 1.2| 3.3 2000 2000 96 Yes No Yes No No No Switching Regulator -30 85 Yes| No No Voltage with input feedfoward Synchronous Buck Pin-selectable PWM/PFM modes, Iq=15uA, 100% duty cycle, internal compensation, ceramic-cap stable, only 3 external components Yes No Undefined 1.5| 1.8| Undefined| 1.875| 1.2 1.1V to 3.3V 2000 Undefined Undefined     Yes Yes
LM3679 350 2.5 5.5 1.8 1.8 3000 3000 93 Yes No Yes No No No Switching Regulator -30 85 No No Auto Synchronous Buck Automatic intelligent switching between PWM and PFM modes Yes No 0.63 1.8   3000 0.5 Undefined     Yes Yes
LM2612 300 2.8 5.5 1.05 1.8 500 1000 91 Yes No Yes Yes No No Switching Regulator 25 85 Yes Yes Current Synchronous Buck Pin-selectable PWM/PFM modes, Max Iq in shutdown is 3uA, 2% output accuracy Yes No Undefined Undefined 1.05V, 1.3V, 1.5V, 1.8V 600   Undefined        

 

Buck Synchronous Switching Controllers（30）
Base Part Number Output Current Input Min Voltage Input Max Voltage Feedback Voltage Feedback Tolerance Frequency Min Frequency Max Efficiency (peak) Output Range Adj Switch Frequency Adjustable Output Synchronous Rectification On/Off Pin Error Flag SoftStart Sync Pin Inverting Flyback Lossless Current Sense RegType Temperature Min Temperature Max Channels Special Features Topology PWM Mode Step-Down Step-Up Multiple Output Capability Output Power Regulator Family Output Max Output Min AEC Q-100 Automotive Grade Automotive Selection Guide PowerWise Quiescent Current
LM25115 20000 4.5 42 0.75 1.7 100 1000 90 0.75V to 13.5V Yes Yes Yes Yes No Yes Yes No No Yes Switching Controller -40 125 1   Synchronous secondary-side post-regulator Voltage/current-injection Yes No Yes 300   13.5 0.75   Yes    
LM25116 20000 6 42 1.215 1.5 50 1000 95 1.215V to 36V Yes Yes Yes Yes No Yes Yes No No Yes Switching Controller -40 125 1 High step-down ratio using emulated current mode control Buck Current Yes No No   Undefined 36 1.215   Yes Yes  
LM2640 20000 5.5 30 2.2 2 200 400 96 2.2V-6.0V (each output) Yes Yes Yes Yes No Yes Yes No No No Switching Controller 0 125 3 Individual softstart allows sequencing; 5V/50mA linear output; FPWM Buck Current Yes No Yes -   6 2.2        
LM2641 20000 5.5 30 2.2 2 300 400 96 2.2V-8.0V (each output) Yes Yes Yes Yes No Yes Yes No No No Switching Controller 0 125 3 Individual softstart allows sequencing; 5V/50mA linear output; FPWM Buck Current Yes No Yes -   8 2.2        
LM2642 20000 4.5 30 1.3 2 300 300 Undefined 1.3V-13.5V (each output) No Yes Yes Yes Yes Yes No No No Yes Switching Controller -40 125 2 180deg out-of-phase channels; Individual softstart allows sequencing Buck Current Yes No Yes Undefined   13.5 1.3        
LM2645 20000 4.5 30 1.3 1.5 200 300 - 5V and 3.3V, or 1.3-5.5V adj Yes Yes Yes Yes No Yes No No No Yes Switching Controller 0 125 4 180deg out-of-phase channels; Adj linear reg controller; 3.3V output rail Buck Current Yes No Yes -   5.5 1.3        
LM2727 20000 2.2 16 0.6 1.5 50 2000 - 0.6V to 5V Yes Yes   Yes Yes Yes No No No Yes Switching Controller 0 125 1 UVLO; UVP; Suspend to disk shutdown Synchronous Buck Voltage Yes No No -   5 0.6        
LM2737 20000 2.2 16 0.6 1.5 50 2000 - 0.6V to 5V Yes Yes   Yes Yes Yes No No No Yes Switching Controller -40 125 1 Suspend to disk shutdown Buck Voltage Yes No No -   5 0.6        
LM2742 20000 1 16 0.6 1.5 50 2000 85 0.6V to 13.5V Yes Yes   Yes Yes Yes No No No Yes Switching Controller -40 125 1 4.2V UVLO; Tri-State output during SD; 40ns min on-time Buck Voltage Yes No No Undefined   13.5 0.6     Yes  
LM2743 20000 1 16 0.6   50 2000 85 0.6V to 13.5V Yes Yes   Yes Yes Yes No No No Yes Switching Controller -40 125 1 2.7V UVLO; Tri-State output during SD; Tracking; Precision SD threshold Buck Voltage Yes No No Undefined   13.5 0.6     Yes  
LM2744 20000 1 16 Undefined 0.5 50 2000 85 Vref to 13.5 V Yes Yes   Yes Yes Yes No No No Yes Switching Controller -40 125 1 External Vref version of LM2743 for ultra-high accuracy; Tracking; Sequencing Buck Voltage Yes No No Undefined   13.5       Yes 1.5
LM2745 20000 1 17 0.6 1.5 50 1000 85 0.6V to 13.5V Yes Yes   Yes Yes Yes Yes No No Yes Switching Controller -40 125 1 Pre-bias startup; 40ns min on-time Buck Voltage Yes No No Undefined   13.5 0.6     Yes  
LM2746 20000 1 16 0.6 1 50 1000 85 0.6V to 13.5V Yes Yes   Yes Yes Yes Yes No No Yes Switching Controller -40 125 1 Pre-bias startup; 40ns min on-time Buck Voltage Yes No No Undefined   13.5 0.6     Yes  
LM2747 20000 1 17 0.6 1 50 1000 85 0.6V to 13.5V Yes Yes   Yes Yes Yes Yes No No Yes Switching Controller -40 125 1 Pre-bias startup; 40ns min on-time Buck Voltage Yes No No Undefined   13.5 0.6     Yes  
LM2748 20000 1 16 0.6 1.5 50 1000 85 0.6V to 13.5V Yes Yes   Yes Yes Yes No No No Yes Switching Controller -40 125 1 Pre-bias startup; 40ns min on-time Buck Voltage Yes No No Undefined   13.5 0.6     Yes  
LM5115 20000 4.5 75 0.75 1.7 50 1000 90 0.75V to 13.5V Yes Yes Yes Yes No Yes Yes No No Yes Switching Controller -40 125 1 Tracking; Operates from AC or DC input; Voltage mode/current injection simplifies loop compensation; SSPR; Synchronization Secondary-side post regulator Voltage/current-injection Yes No No 300     0.75   Yes    
LM5115A 20000 4.5 75 0.75 1.7 50 1000 90 0.75 to 13.5V Yes Yes Yes Yes No Yes Yes No No Yes Switching Controller -40 125 1 Tracking Secondary-side post regulator Valley current mode Yes No No 300   13.5 0.75 Undefined Yes Undefined  
LM5116 20000 6 100 1.215 1.5 50 1000 95 1.215V to 80V Yes Yes Yes Yes No Yes Yes No No Yes Switching Controller -40 125 1 High step-down ratio using emulated current mode control Buck Current Yes No No Undefined Undefined 80 1.215 0 Yes Yes  
LM5116WG 20000 6 100 1.215 1.5 50 1000 95 1.215V to 80V Yes Yes Yes Yes No Yes Yes No No Yes Switching Controller -40 125 1 High step-down ratio using emulated current mode control Buck Current Yes No No Undefined Undefined 80 1.215 0 Yes Yes  
LM5642 20000 4.5 36 1.2364 1.5 150 250 90 1.3V to 96% of Vin Yes Yes Yes Yes No Yes Yes No No Yes Switching Controller -40 125 2 180deg out-of-phase channels; individual soft-start allows sequencing Buck Current Yes No Yes Undefined   Undefined 1.3     Yes  
LM5642X 20000 4.5 36 1.2364 1.5 200 500 90 1.3V to 96% of Vin Yes Yes Yes Yes No Yes Yes No No Yes Switching Controller -40 125 2 180deg out-of-phase channels; individual soft-start allows sequencing Buck Current Yes No Yes Undefined   Undefined 1.3   Yes Yes  
LM27241 16000 5.5 28 0.6 1.5 200 500 Undefined 0.6V min Yes Yes Yes Yes Yes Yes No No No Yes Switching Controller -5 125 1 Selectable pulse-skip mode for high efficiency at light load Synchronous Buck Voltage Yes No Yes Undefined Undefined Undefined 0.6        
LM3150 12000 6 42 0.6 1.5 Undefined 1000 95 Adjustable down to 0.6V Yes Yes Yes Yes No Yes No No No No Switching Controller -40 125 Undefined Undefined Step-Down/Buck Undefined Yes No No Undefined SIMPLE SWITCHER Undefined Undefined Undefined Undefined Yes  
LM3151 12000 6 42 0.6 1.5 250 250 95 3.3V No No Yes Yes No Yes No No No No Switching Controller -40 125 Undefined Undefined Step-Down/Buck Undefined Yes No No Undefined SIMPLE SWITCHER 3.3 3.3 Undefined Undefined Yes  
LM3152 12000 6 33 0.6 1.5 500 500 95 3.3V No No Yes Yes No Yes No No No No Switching Controller -40 125 Undefined Undefined Step-Down/Buck Undefined Yes No No Undefined SIMPLE SWITCHER 3.3 3.3 Undefined Undefined Yes  
LM3153 12000 8 18 0.6 1.5 750 750 95 3.3V No No Yes Yes No Yes No No No No Switching Controller -40 125 Undefined Undefined Step-Down/Buck Undefined Yes No No Undefined SIMPLE SWITCHER 3.3 3.3 Undefined Undefined Yes  
LM3495 10000 2.9 18 0.6 1 200 1500 95 0.6V to 5.5V Yes Yes   Yes No Yes Yes No No Yes Switching Controller -40 125 1 Power supply tracking; Pre-bias startup; Skip mode at light load Buck Emulated Peak Current Mode Yes No No Undefined   5.5 0.6     Yes  
LM3743 10000 3 5.5 0.8 1.75 300 1000 95 0.8V to 4.6V No Yes Yes Yes No Yes No No No Yes Switching Regulator -40 125 1 Pre-bias start-up; Hiccup mode; External programmable soft-start and tracking Buck Voltage Yes No No Undefined   4.6 0.8     Yes  
LM1771 6000 2.8 5.5 0.8 2 300 1000 95 0.8V to 4.5V No Yes Yes Yes No Yes No No No No Switching Controller -40 125 1 Precision enable for sequencing multiple rails Buck Constant on-time Yes No No Undefined   4.5 0.8     Yes  
LM1770 4000 2.8 5.5 0.8 2 300 1000 95 0.8V to 4.5V No Yes Yes No No Yes No Yes No No Switching Controller -40 125 1 No compensation required Buck Constant on-time No No No -   4.5 0.8     Yes  

 

Buck Non-Synch. Switching Controllers（10）
Base Part Number Output Current Input Min Voltage Input Max Voltage Output Range Frequency Min Frequency Max Feedback Voltage Feedback Tolerance Efficiency (peak) Adj Switch Frequency Adjustable Output Synchronous Rectification On/Off Pin Error Flag SoftStart Sync Pin Inverting Flyback Lossless Current Sense RegType Temperature Min Temperature Max Channels Special Features Topology PWM Mode Step-Down Step-Up Multiple Output Capability Output Power Regulator Family Output Max Output Min AEC Q-100 Automotive Grade Automotive Selection Guide PowerWise Quiescent Current
LM27213 Undefined 1.8 28 0.700V to 1.708V, DAC programmed         Undefined Yes Yes   Yes Yes   No No No   Switching Controller -5 110     Current Mode Hysteretic   Yes No No Undefined   1.708 0.7        
LM2636 20000 4.5 5.5 1.3V-3.5V (5-bit VID) 50 1000 Undefined 1.5 - Yes Yes   Yes No Yes No No No Yes Switching Controller 0 125 1 5-bit digital control for Vout Buck Voltage Yes No No -   3.5 1.3        
LM25088 10000 4.5 42 Undefined 50 1000 1.205 1.5 97 Yes Yes No Yes No Yes Yes No No No Switching Controller -40 125 Undefined Spread Spectrum EMI reduction (Lm5088-1), Hiccup Mode Restart (LM5088-2), Low Dropout Mode and  Low Iq shutdown and standby currents Buck Emulated Current Mode Yes No No Undefined Undefined 40 1.205 0 Yes Yes 3.2
LM5088 10000 4.5 75 Undefined 50 1000 1.205 1.5 97 Yes Yes No Yes No Yes Yes No No No Switching Controller -40 125 Undefined Spread Spectrum EMI reduction (Lm5088-1), Hiccup Mode Restart (LM5088-2), Low Dropout Mode and  Low Iq shutdown and standby currents Buck Emulated Current Mode Yes No No Undefined Undefined 70 1.205 0 Yes Yes 3.8
LM3477 6000 2.95 35 1.265V min 500 500 1.265 1.5 - No Yes No Yes No Yes No Yes No No Switching Controller -40 125 1 Hysteretic threshold at 36% of programmed current limit; Vout OVP Buck Current Yes No No -   Undefined 1.265        
LM3475 5000 2.7 10 0.8V to Vin 0 1400 0.8 1.5 90 No Yes   Yes No Yes No No No Yes Switching Controller -40 125 1 Fast transient response; High efficiency; Wide Vin range; 100% duty cycle capable Buck Hysteretic Yes No No -   1 0.8        
LM3485 4000 4.5 35 1.242V to Vin 0 1400 1.27 2 93 Yes Yes No No No No No No No Yes Switching Controller -40 125 1 No compensation required; Current limit; PFET controller Buck Hysteretic Yes No No -   Undefined 1.242   Yes    
LM3489 4000 4.5 35 1.239V min. 0 1400 1.239 2   Yes Yes No Yes No No No No No Yes Switching Controller -40 125 1 No compensation required;  Current limit; PFET controller; Enable; Power-saving shutdown mode Buck Hysteretic Yes No No     Undefined 1.239 1 Yes    
LM25085   4.5 42 1.25V to VIN   1000 1.25 2 95 Yes Yes No Yes             Switching Controller -40 125   Near constant switching frequency, PFET for 100% duty cycle   Constant On-Time (COT) Yes       Undefined   1.25 Undefined No Yes  
LM5085   4.5 75 1.25V to VIN   1000 1.25 2 95 Yes Yes No Yes             Switching Controller -40 125 1 Near constant frequency, PFET for 100% duty cycle   Constant On-Time (COT) Yes No     Undefined     Undefined No Yes  

 

Switched Capacitor Regulators（6）
Base Part Number Output Current Output Min Output Max Adjustable Output Input Max Voltage Input Min Voltage Frequency Max Efficiency (peak) Frequency Min Adj Switch Frequency On/Off Pin Quiescent Current Special Features PWM Mode Topology Step-Down Step-Up Inverting RegType Temperature Min Temperature Max
LM2771 250 1.5 1.5 No 5.5 2.7 1100 81 1100 No Yes 0.045 Low ripple, low noise fixed frequency operation Variable gain switched capacitor SwCap Buck Yes No No Switched Cap Regulator -30 110
LM2772 150 1.2 1.2 No 5.5 2.7 1100 80 1100 No Yes 0.05 Low ripple, low noise fixed frequency operation Variable gain switched capacitor SwCa Buck Yes No No Switched Cap Regulator -30 85
LM2788 120 2.0| 1.8 2.0| 1.8 No 5.5 2.6 500 90 500 No Yes 0.032 Undefined Multiple Fractional Gain SwCap SwCap Buck Yes No No Switched Cap Regulator -40 85
LM2686 50 5 5 No 6.5 2.85 130 80 130 No Yes 0.45 Low ripple Doubler with LDO Switched capacitor doubler with LDO Yes Yes No Switched Cap Regulator -40 85
LM2687 10 -5.2 -1.5 Yes 5.5 2.7 100 91 100 No Yes 0.5 Low noise Inverter with LDO Switched capacitor inverter with LDO No No Yes Switched Cap Regulator -40 105
LM2787 10 -5.2 -1.5 Yes 5.5 2.7 260 91 260 No Yes 0.4 Low noise Inverter with LDO Switched capacitor inverter with LDO No No Yes Switched Cap Regulator -40 105
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