LTC1438CG-ADJ
Dual High Efficiency, Low Noise, Synchronous Step-DowSwitching Regulators
FEATURES
Maintains Constant Frequency at Low Output Currents
Dual N-Channel MOSFET Synchronous Drive
Programmable Fixed Frequency (PLL Lockable)
Wide VIN Range: 3.5V to 36V Operation
Ultrahigh Efficiency
Very Low Dropout Operation: 99% Duty Cycle
Low Dropout, 0.5A Linear Regulator for VPP
Generatioor Low Noise Audio Supply
Built-IPower-OReset Timer
Programmable Soft Start
Low-Battery Detector
Remote Output Voltage Sense
Foldback Current Limiting (Optional)
PiSelectable Output Voltage
Logic-Controlled Micropower Shutdown: IQ
< 30µA
Output Voltages from 1.19V to 9V
Available i28- and 36-Lead SSOP Packages
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