LTC3125 Datasheet 1.2A Synchronous Step-Up DC/DC Converter

Manufacturer: Linear Technology (now Analog Devices)

Datasheet Details

Part number	LTC3125
Manufacturer	Linear Technology (now Analog Devices)
File Size	308.22 KB
Description	1.2A Synchronous Step-Up DC/DC Converter
Datasheet	LTC3125 Datasheet

The LTC®3125 is a high efﬁciency, synchronous step-up DC/DC converter with an accurate programmable average input current limit.

The resistor programmable average input current limit is 5% accurate at 500mA and is suitable for a wide variety of applications.

In mobile computing, GSM and GPRS cards demand high current pulses well beyond the capability of the PC Card and CompactFlash slots.

LTC3125 1.2A Synchronous Step-Up DC/DC Converter with Input Current.

n Programmable Average Input Current Limit n 5% Input Current Accuracy n 200mA to 1000mA Program Range n VIN: 1.8V to 5.5V, VOUT: 2V to 5.25V n Supports High Current GSM/GPRS Load Burst n VIN > VOUT Operation n 1.6MHz Fixed Frequency Operation n Internal Current Sense Resistor n 1.2A Peak Current Limit n Up to 93% Efﬁciency n Output Disconnect in Shutdown n Soft-Start n Low Quiescent Current Burst Mode® Operation n Available in 2mm × 3mm × 0.75mm DFN Package.

Part Number	Description
LTC3122	2.5A Synchronous Step-Up DC/DC Converter
LTC3124	5A 2-Phase Synchronous Step-Up DC/DC Converter
LTC3127	1A Buck-Boost DC/DC Converter
LTC3129	200mA Synchronous Buck-Boost DC/DC Converter
LTC3100	1.5MHz Synchronous Dual Channel DC/DC Converter and 100mA LDO
LTC3101	Multi-Output DC/DC Converter and PowerPath Controller
LTC3103	300mA Synchronous Step-Down DC/DC Converter
LTC3105	400mA Step-Up DC/DC Converter
LTC3106	300mA Low Voltage Buck-Boost Converter
LTC3108	Ultralow Voltage Step-Up Converter and Power Manager