Outline

This is a converter IC which steps up the DC input voltage to output a fixed voltage level. Utilizing technology for low-voltage operation, which is a feature of Mitsumi semiconductor processes, operation is possible beginning at 0.90V, making this device ideal for the power supply circuits of portable equipment driven by a single battery.

Because PWM oscillation is adopted, an output waveform can be obtained with a smaller peak-to-peak voltage than is possible for VFM devices.

Features

1. Low-voltage operation possible, 0.90V (no-load)

2. Internal oscillation circuit

3. Adoption of PWM oscillation for output waveform with small peak-to-peak voltage

4. Numerous output voltages available (seven ranks)

Applications

1. Pagers

2. Separate vibrators

3. Other portable equipment