U U
FEATURES
■ High Efficiency: Up to 95%
■ Inrush Current Limiting and Output Disconnect
■ Programmable Output Voltages up to 6V
■ 1.
5V to 6V Input Range
■ Programmable/Synchronizable Fixed Frequency
Operation up to 1.
5MHz
■ Programmable Automatic Burst Mode® Operation
■ Current Mode Control with Programmable Soft-Start
Period and Peak Current Limit
■ 0.
2Ω N-Channel and 0.
3Ω P-Channel Switches
■ Ultralow Quiescent Currents: 12μA Sleep, 1μA in
Shutdown
■ 12-Pin 4mm × 3mm Thermally Enhanced DFN
Package
U
APPLICATIO S
■ Point-of-Load
Regulators
■ USB VBUS Power ■ Portable GPS
■ MP3 Players
LTC3458L
1.
7A, 1.
5MHz Synchronous Step-Up DC/DC Converter
with Output Disconnect
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