ME2149 Datasheet | ChipSourceTek

ULTRA-SMALL PACKAGE PWM/PFM SWITCHING CONTROL STEP-UP SWITCHING REGULATOR General Description Features The ME2149 series is a CMOS step-up - Low voltage operation: Start-up is guaranteed from switching regulator which mainly consists of a reference voltage source, an oscillation circuit, 0.9V(IOUT =1 mA ) - Duty ratio: Built-in PWM/PFM switching control an error amplifier, a phase pensation circuit, circuit 15 to 78 % . a PWM/PFM switching control circuit. With an internal low-ON-resistance Nch Power MOS, this 技 product is applicable to applications requiring k high efficiency and high output current. The 科 e ME2149 series switches its operation to the PFM 特 T control...