Description
Solved by SP6652 TM 1A, High Efficiency, Fixed 1.4 MHz Current Mode PWM Buck Regulator .
The SP6652 is a high efficiency, synchronous buck regulator ideal for portable applications using one Li-Ion cell, with up to 1A of output current.
Features
* 1A Output Current
* 1.4MHz Constant Frequency Operation
* 97% Efficiency Possible
* 0.5µA (Max. ) Shutdown Current
* Adjustable Output Voltage
* No External FETs or Schottky Diode Required
* Uses Small Value Inductors and Ceramic
Output Capacitors
* Low Dropout O
Applications
* Mobile Phones
* PDAs
* DSCs
* MP3 Players
* USB Devices