LTC3204-3.3/LTC3204B-3.3 - Low Noise Regulated Charge Pump in 2 × 2 DFN

The LTC®3204-3.3/LTC3204-5/LTC3204B-3.3/LTC3204B-5 are low noise, constant frequency (1.2MHz) switched ca-pacitor voltage doublers. The LTC3204-3.3/LTC3204B-3.3 can produce a regulated output voltage of 3.3V from a minimum input voltage of 1.8V (2 alkaline cells) whereas the LTC3204-5/LTC3204B-5 can produce 5V from a minimum of 2.7V (Li-Ion battery) input.

LTC3204-3.3/LTC3204-5 feature automatic Burst Mode® operation at light loads to maintain low supply current whereas LTC3204B-3.3/LTC3204B-5 feature constant frequency operation at any load. Built-in soft-start circuitry prevents excessive inrush current during start-up. Thermal shutdown and current-limit circuitry allow the parts to survive a continuous short-circuit from VOUT to GND.

High switching frequency minimizes overall solution footprint by allowing the use of tiny ceramic capaci-tors. In shutdown, the load is disconnected from the input and the quiescent current is reduced to <1µA.

The LTC3204-3.3/LTC3204-5/LTC3204B-3.3/LTC3204B-5 are available in a low proﬁle (0.75mm) 6-lead 2mm × 2mm DFN package.

*Protected by U.S. Patents including 6411531.

特点

Fixed 3.3V or 5V Outputs
VIN Range:1.8V to 4.5V (LTC3204-3.3/LTC3204B-3.3)2.7V to 5.5V (LTC3204-5/LTC3204B-5)
Output Current:Up to 150mA (LTC3204-5/LTC3204B-5)Up to 50mA (LTC3204-3.3/LTC3204B-3.3)
Automatic Burst Mode® Operation with IQ = 48µA (LTC3204-3.3/LTC3204-5)
Constant Frequency Operation at All Loads (LTC3204B-3.3/LTC3204B-5)
Low Noise Constant Frequency (1.2MHz) Operation*
Built-In Soft-Start Reduces Inrush Current
Shutdown Disconnects Load from Input
Shutdown Current <1µA
Short-Circuit/Thermal Protection
Available in Low Profile 6-Lead DFN Package

典型应用

应用

2 AA Cell to 3.3V
Li-Ion to 5V
USB On-The-Go Devices
White LED Drivers
Handheld Devices

封装信息

**Order Information 订购型号**
器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC3204BEDC-3.3#PBF	2x2 DFN-6	E	$1.91
LTC3204BEDC-3.3#TRMPBF	2x2 DFN-6	E	$1.91	$1.62
LTC3204BEDC-3.3#TRPBF	2x2 DFN-6	E	$1.91	$1.60
LTC3204BEDC-5#PBF	2x2 DFN-6	E	$1.91
LTC3204BEDC-5#TRMPBF	2x2 DFN-6	E	$1.91	$1.62
LTC3204BEDC-5#TRPBF	2x2 DFN-6	E	$1.91	$1.60
LTC3204EDC-3.3#PBF	2x2 DFN-6	E	$1.91
LTC3204EDC-3.3#TRMPBF	2x2 DFN-6	E	$1.91	$1.62
LTC3204EDC-3.3#TRPBF	2x2 DFN-6	E	$1.91	$1.60
LTC3204EDC-5#PBF	2x2 DFN-6	E	$1.91
LTC3204EDC-5#TRMPBF	2x2 DFN-6	E	$1.91	$1.62
LTC3204EDC-5#TRPBF	2x2 DFN-6	E	$1.91	$1.60

演示电路板


器件型号	描述	价格
DC761A-A	LTC3204EDC-5 Demo Board \| Low Noise Regulated Charge Pump in 2x2 DFN, Burst Mode, Vin = 2.7V-5.5V, Vout = 5V/(65-150mA)	$75.00
DC761A-B	LTC3204EDC-3.3 Demo Board \| Low Noise Regulated Charge Pump in 2x2 DFN, Burst Mode, Vin = 1.8V-4.5V, Vout = 3.3V/(40-50mA max)	$75.00
DC916A-A	LTC3204BEDC-5 Demo Board \| Low Noise Regulated Charge Pump 2x2 DFN, Vin = 2.7V-5.5V, Vout = 5V/(65-150mA max)	$75.00
DC916A-B	LTC3204BEDC-3.3 Demo Board \| Low Noise Regulated Charge Pump in 2x2 DFN, Vin = 1.8V-4.5V, Vout = 3.3V/(40-50mA max)	$75.00