MP9148
MP9148 is SYNC Buck Regulator manufactured by Monolithic Power Systems.
DESCRIPTION
The MP9148 is an internally-pensated, 1MHz fixed-frequency, dual PWM, synchronous, step-down regulator. The MP9148 operates from a 2.7V-to-6V input, generates an output voltage as low as 0.608V, and has a 45µA quiescent current that makes it ideal for powering portable equipment that runs on a single cell lithium-ion (Li+) battery.
The MP9148 integrates dual 100mΩ high-side switches and 40mΩ synchronous rectifiers for high efficiency without an external Schottky diode. Peak-current mode control and internal pensation limits the minimum number of readily-available external ponents.
Fault-condition protections include cycle-by-cycle current limiting and thermal shutdown.
The MP9148 is available in an 8-pin TSOT23-8 package.
FEATURES
- Dual 1A-Output Current
- >93% Peak Efficiency
- >80% Light-Load Efficiency
- Wide 2.7V-to-6V Operating Input Range
- 100mΩ and 40mΩ Internal Power MOSFET
- 1MHz Fixed Switching Frequency
- Adjustable Output from 0.608V to VIN
- 180° Phase-Shifted Operation
- 100% Duty-Cycle Operation
- 45µA Quiescent Current
- Cycle-by-Cycle Over-Current Protection
- Short-Circuit Protection with Hiccup Mode
- Thermal Shutdown
- Available in an 8-pin TSOT23-8 Package
APPLICATIONS
- Small/Handhold Devices
- DVD Drivers
- Portable Instruments
- Smartphones and Feature
Phones
- Battery-Powered Devices
All MPS parts are lead-free and adhere to the Ro HS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
5V
22 F
EN1
EN1 IN...
