Datasheet Linear Technology LTC3527EUD-1#PBF — Ficha de datos

LTC3527/LTC3527-1
Dual 800mA/400mA,
1.2MHz/2.2MHz Synchronous
Step-Up DC/DC Converters
FEATURES DESCRIPTION n The LTC®3527/LTC3527-1 are dual high efficiency, step-up
DC/DC converters in a space saving 16-lead 3mm × 3mm
QFN package. Battery life is maximized with a 700mV startup voltage and operation down to 500mV once started.
The SHDN and PGOOD pins enable the converters to be
sequenced or started together. Dual Synchronous Step-Up DC/DC Converters
Delivers 3.3V at 200mA/100mA from one Alkaline/
NiMH Cell, or 3.3V at 400mA/200mA from Two Cells
VIN Start-Up Voltage: 700mV
0.5V to 5V VIN Range After Start-Up
1.6V to 5.25V VOUT Range
Output Disconnect in Shutdown
VIN > VOUT Operation
1.2MHz or 2.2MHz Operation
Up to 94% Efficiency
12μA Quiescent Current in Burst Mode® Operation
Inrush Current Limiting and Soft-Start
Internal Synchronous Rectifiers
Logic-Controlled Shutdown (< 2μA)
Quick VOUT Discharge (LTC3527-1) …