Datasheet Analog Devices LTC3528B — 数据表

LTC3528/LTC3528B
1A, 1MHz Synchronous
Step-Up DC/DC Converters
in 3mm × 2mm DFN
FEATURES DESCRIPTION Delivers 3.3V at 200mA from a Single Alkaline/
NiMH Cell or 3.3V at 400mA from Two Cells
■ V Start-Up Voltage: 700mV
IN
■ 1.6V to 5.25V V
OUT Range
■ Up to 94% Efficiency
■ Output Disconnect
■ 1MHz Fixed Frequency Operation
■ V > V
IN
OUT Operation
■ Integrated Soft-Start
■ Current Mode Control with Internal Compensation
■ Burst Mode® Operation with 12µA Quiescent Current
(LTC3528)
■ Low Noise PWM Operation (LTC3528B)
■ Internal Synchronous Rectifier
■ Logic Controlled Shutdown: 1.230V N-Channel MOSFET Switch Leakage Current VSW = 5V …