ME2188 Power Management IC – 450mA DC/DC Step-Up Converter | 0.9–5.5V, PFM | SOT89-3 SOT23 SOT23-3 SOT23-5 TO92

The ME2188 is a low-power Power Management IC featuring a DC/DC step-up (boost) converter with built-in NMOS and PMOS switches.
It supports a 0.9V to 5.5V input voltage range and provides a regulated output voltage from 1.9V to 5.0V.

Operating in PFM mode with a 320kHz switching frequency, the ME2188 delivers up to 450mA output current with ±2% accuracy, making it ideal for battery boost applications such as 3V to 3.3V conversion.

Key Specifications

• Input Voltage (VIN): 0.9V – 5.5V

• Output Voltage (VOUT): 1.9V – 5.0V

• Output Current (IOUT): Up to 450mA

• Switching Frequency (FOSC): 320kHz

• Operating Mode: PFM

• Topology: NMOS & PMOS

• Output Accuracy: ±2%

• Package: SOT89-3, SOT23, SOT23-3, SOT23-5, TO-92

Applications

• Battery-powered devices

• Wireless peripherals

• Consumer electronics

• 3V to 3.3V boost supplies

Features

• Ultra-low startup voltage

• PFM operation for high light-load efficiency

• Integrated power switches

• Wide package selection

• Simple boost implementation