Microchip Technology, Inc. DC DC Switching Controllers MCP1631V-E/ST

The MCP1631V-E/ST is a high-speed analog pulse width modulator (PWM) designed for developing intelligent power systems. It operates in voltage mode control and is suitable for applications requiring programmable switching battery chargers. The device supports input voltages from +3.5V to +16V and provides regulated output voltage options of +5.0V or +3.3V, with a maximum output current of 250 mA. Key features include an integrated overvoltage comparator, an error amplifier, and a battery current sensing amplifier. The MCP1631V-E/ST also incorporates a high current low side MOSFET driver capable of 1A peak, and it has a shutdown mode that reduces quiescent current to 2.4 µA. The device is available in multiple package options, including 20-Lead TSSOP and SSOP, making it versatile for various design requirements. Typical applications include high input voltage programmable battery chargers for multiple chemistries, LED lighting, and constant current SEPIC power train designs. The integration of features allows for enhanced design flexibility when combined with a microcontroller, making it suitable for intelligent power management solutions.