1.2MHz Synchronous Step-Down DC/DC Converter
FR9802 21V, 1.5A, 1.2MHz Synchronous Step-Down DC/DC Converter
FEATURES
High Efficiency up to 94% Low Rds(on) Integrate...
Description
FR9802 21V, 1.5A, 1.2MHz Synchronous Step-Down DC/DC Converter
FEATURES
High Efficiency up to 94% Low Rds(on) Integrated Power MOSFET Internal Compensation Function Wide Input Voltage Range: 4.5V to 21V Adjustable Output Voltage from 0.8V to 16.8V 1.5A Output Current Fixed 1.2MHz Switching Frequency Current Mode Operation Cycle-by-Cycle Current Limit Over-Temperature Protection with Auto Recovery Output Overvoltage Protection Under Voltage Lockout <1µA Shutdown Current
TYPICAL APPLICATION CIRCUIT
PIN DESCRIPTION
NAME SOT23-6
BST
GND
FB SHDN VIN
LX
1
2
3 4 5 6
DESCRIPTION
High Side Gate Drive Boost Ground
Voltage Feedback Input Enable Input
Power Supply Input Power Switching Output
TYPICAL APPLICATION
STB (Set-Top-Box) LCD Display, TV Distributed Power System Networking, XDSL Modem
PACKAGE
12 、、
...
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