Datasheet Linear Technology LTC3528EDDB-2#TRMPBF — 数据表

LTC3528-2
1A, 2MHz Synchronous
Step-Up DC/DC Converter
in 2mm × 3mm DFN
FEATURES DESCRIPTION Delivers 3.3V at 200mA from a Single Alkaline/
NiMH Cell or 3.3V at 400mA from Two Cells
n V Start-Up Voltage: 700mV
IN
n 0.50V to 5.5V Input Range
n 1.6V to 5.25V V
OUT Range
n Up to 94% Efficiency
n Output Disconnect
n 2MHz Fixed Frequency Operatio V > V
IN
OUT Operatio Integrated Soft-Start
n Current Mode Control with Internal Compensatio Burst Mode® Operation with 12µA Quiescent Current
n Internal Synchronous Rectifier
n Logic Controlled Shutdown: 1.230V 12 20 µA 0.1 10 µA 0.1 10 µA N-Channel MOSFET Switch Leakage Current VSW = 5V
P-Channel MOSFET Switch Leakage Current VSW = 5V, VOUT = 0V N-Channel MOSFET Switch On Resistance 0.175 Ω P-Channel MOSFET Switch On Resistance 0.250 Ω 1.5 A 60 ns 92 % N-Channel MOSFET Current Limit l Current Limit Delay Time to Output (Note 3) Maximum Duty Cycle VFB = 1.15V l 1.0
87 35282fb 2 LTC3528-2
ELECTRICAL
CHARACTERISTICS The l denotes the specifications which apply over the specified operating …