MAX1735:200mA, Negative-Output, Low-Dropout Linear Regulator in SOT23

Ultra-Small, 200mA Negative Output LDO in SOT23

The MAX1735 negative-output, low-dropout linear regulator operates from a -2.5V to -6.5V input and delivers a guaranteed 200mA with a low 80mV dropout. The high-accuracy (±1%) output voltage is preset or can be adjusted from -1.25V to -5.5V with an external resistive voltage-divider. An internal N-channel MOSFET allows for a low 85µA quiescent current virtually independent of the load, making this device ideal for battery-powered portable equipment, such as PDAs, mobile phones, cordless phones, and wireless data modems. The device is available in several preset output voltage versions: -5.0V, -3.0V, and -2.5V. All versions offer a 1nA low-power shutdown mode, short-circuit protection, and thermal overload protection. The device is offered in a tiny 5-pin SOT23 package.

Key Features
  • Guaranteed 200mA Output Current
  • Low 80mV Dropout Voltage at 200mA
  • Low 85µA Quiescent Supply Current
  • Low 1nA Current Shutdown Mode
  • Stable with 1µF COUT
  • PSRR > 60dB at 100Hz
  • Thermal Overload Protection
  • Short-Circuit Protection
  • -5.0V, -3.0V, or -2.5V Output Voltage or Adjustable (-1.25V to -5.5V)
  • Tiny SOT23-5 Package
MAX1735: Typical Operating Circuit
MAX1735: Typical Operating Circuit
Applications/Uses
  • Access Products
  • Cell Phones
  • Cordless Phones
  • Digital Cameras and Camcorders
  • Glucose Meters
  • Handhelds (GPS, POS Terminal)
  • HDD and RAID
  • PC Add-In Cards
  • Power Supplies
DataSheet
titleDownload file
MAX1735 Data SheetMAX1735.pdf
Parametrics
Part NumberRegulatorsVIN
(V)
VIN
(V)
Preset VOUT
(V)
Adj. VOUT
(V)
Adj. VOUT
(V)
VDROPOUT @Rated ILOAD
(V)
Rated ILOAD
(mA)
Rated ILOAD
(mA)
ICC
(µA)
Output Voltage Noise
(µV RMS)
Ref. BypassLow Batt./ Pwr. Fail OutWatchdogReverse Batt. Protect.Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxminmaxtypmaxtypSee Notes
MAX17351-2.5-6.5-5.0
-3.0
-2.5
-1.25-5.50.08200200180160NoNoNoNo-40 to +85SOT/5$1.10 @1k
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1735EUK25Last Time BuySOT,;5 pin;9 mm²-40°C to +85°CNo
MAX1735EUK25+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX1735EUK25+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX1735EUK25-TNo Longer AvailableMAX1735EUK25+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX1735EUK30No Longer AvailableMAX1735EUK30+SOT,;5 pin;9 mm²-40°C to +85°CNo
MAX1735EUK30+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX1735EUK30+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX1735EUK30-TNo Longer AvailableMAX1735EUK30+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX1735EUK50ActiveSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX1735EUK50+ActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX1735EUK50+TActiveSOT,;5 pin;9 mm²-40°C to +85°CLead Free
MAX1735EUK50-TNo Longer AvailableMAX1735EUK50+TSOT,;5 pin;9 mm²-40°C to +85°CNo
MAX1735.pdf MAX1735
MAX1735.pdf MAX1735
MAX1735.pdf MAX1735
Fremont (MAXREFDES6#) ZedBoard Quick Start Guide MAX14850
Fremont (MAXREFDES6#) Nexys 3 Quick Start Guide MAX14850
Carmel (MAXREFDES18#) ZedBoard Quick Start Guide MAX14850
Carmel (MAXREFDES18#) LX9 Quick Start Guide MAX14850
Carmel (MAXREFDES18#): High Accuracy Analog Current/Voltage Output MAX14850
Fremont (MAXREFDES6#): 16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE) MAX14850
Fresno (MAXREFDES11#) ZedBoard Quick Start Guide MAX14850
Fresno (MAXREFDES11#): 16-Bit High-Accuracy 0 to 10V Input Isolated Analog Front End (AFE) MAX14850
Using a Linear Regulator to Produce a Constant Current Source MAX1818
Modified LDO Regulator Sinks PECL-Termination Current MAX1735
Modified LDO Sinks PECL-Termination Current MAX1735
Pass Transistor Boosts Current from Negative Linear Regulator MAX1735
MAX1735.pdf MAX1735