Linear Technology LTC1771
The LTC1771 drives an external P-channel power MOSFET using a current mode, constant off-time architecture. Burst Mode operation enables the LTC1771 to maintain high efficiency down to extremely low currents.| Part No. | LTC1771 |
|---|---|
| Datasheet | LTC1771 Download |
| Manufacturer |  Linear Technology |
| Description | High Efficiency Step-Down DC/DC Controller |
| Buy | Stock & Price |
FEATURES
s Very Low Standby Current: 10µA s Available in Space-Saving 8-Lead MSOP Package s Output Currents: Up to 5A s Wide VIN Range: 2.8V to 20V Operation s VOUT Range: 1.23V to 18V s High Efficiency: Over 93% Possible s ±2% Output Accuracy s Very Low Dropout Operation: 100% Duty Cycle s Current Mode Operation for Excellent Line and Load Transient Response s Defeatable Burst ModeTM Operation s Short-Circuit Protected s Optional Programmable Soft-Start s Micropower Shutdown: IQ = 2µA U APPLICATIO S s Cellular Telephones and Wireless Modems s 1- to 4-Cell Lithium-Ion-PoweredAPPLICATIONS
s Portable Instruments s Battery-Powered Equipment s Battery Chargers s Scanners LTC1771 10µA Quiescent Current High Efficiency Step-Down DC/DC Controller DESCRIPTIO The LTC®1771 is a high efficiency current mode stepdown DC/DC controller that draws as little as 10µA DC supply current to regulate the output at no load while maintaining high efficiency for loads up to several amps. An external sense resistor is used to program the operating current level.
