ME2149 - ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR
The ME2149 series is a CMOS step-up switching regulator which mainly consists of a reference voltage source, an oscillation circuit, an error amplifier, a phase compensation circuit, a PWM/PFM switching control circuit.
With an internal low-ON-resistance Nch Power MOS, this product is applicable to
ME2149 Features
* Low voltage operation: Start-up is guaranteed from 0.9V(IOUT =1 mA ) Duty ratio: Built-in PWM/PFM switching control circuit 15 to 78 % . oscillator frequency 1.0MHz Output voltage range: 1.5V ~62.50 V Output voltage accuracy ±2% Soft start function: 2 mS Applications MP3 players, digital audio pl
