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点击图片查看原图General Description
The TD1688 is a monolithic, step‐down, switch mode converter
with a built‐in power MOSFET. It achieves a 2A peak‐output
current over input supply 9V‐60V with excellent load and line
regulation. Current‐mode operation provides a fast transient
response and eases loop stabilization. Fault condition
protections include cycle‐by‐cycle current limiting and thermal
shutdown.
The TD1688 requires a minimal number of readily‐available
external components.
The TD1688 is available in a ESOP‐8 package.
Pin Configurations
(Top view)
Features
2A Peak Output Current
0.7Ω Internal Power MOSFET
Stable with Low‐ESR Ceramic Output Capacitors
Up to 91% Efficiency
0.1μA Shutdown Mode
Fixed 480kHz Frequency
Thermal Shutdown
Cycle‐by‐Cycle Over‐Current Protection
9V to 60V Operating Input Range
Max duty 90%
Available in a ESOP‐8 Package
Applications
Power Meters
Distributed Power Systems
Battery Chargers
Pre‐Regulator for Linear Regulators
WLED Drivers
