MCP1252/3
Low-Noise, Positive-Regulated Charge Pump
Features: Description: Inductorless, Buck/Boost, DC/DC Converter Low Power: 80 ВµA (Typical) High Output Voltage Accuracy:
-В±2.5% (VOUT Fixed) 120 mA Output Current Wide Operating Temperature Range:
-Industrial Temperature (I): -40В°C to +85В°C
-Extended Temperature (E): -40В°C to +125В°C Thermal Shutdown and Short-Circuit Protection Uses Small Ceramic Capacitors Switching Frequency:
-MCP1252: 650 kHz
-MCP1253: 1 MHz Low-Power Shutdown Mode: 0.1 ВµA (Typical) Shutdown Input Compatible with 1.8V Logic VIN Range: 2.0V to 5.5V Selectable Output Voltage (3.3V or 5.0V) or
Adjustable Output Voltage Space-Saving, 8-Lead MSOP Soft-Start Circuitry to Minimize In-Rush Current AEC-Q100 Qualified The MCP1252/3 are inductorless, positive-regulated
charge pump DC/DC converters. The devices generate
a regulated fixed (3.3V or 5.0V) or adjustable output
voltage. They are specifically designed for applications
requiring low noise and high efficiency and are able to
deliver up to 120 mA output current. The devices allow
the input voltage to be lower or higher than the output
voltage, by automatically switching between buck/
boost operation. Applications: White LED Backlighting
Color Display Bias
Local 3V-to-5V Conversions
Flash Memory Supply Voltage
SIM Interface Supply for GSM Phones
Smart Card Readers
PCMCIA Local 5V Supplies The MCP1252 has a switching frequency of 650 kHz, …
