The MB3759 is a control IC for constant-frequency pulse width modulated switching regulators. The IC contains most of the functions required for switching regulator control circuits. This reduces both the component count and assembly work.
The MB3759 control IC provides constant‑frequency pulse‑width‑modulated regulation for switching power supplies. It integrates most functions required for regulator control, reducing component count and assembly effort.
The device is offered in 16‑pin plastic DIP, 16‑pin ceramic DIP and 16‑pin plastic SOP packages. Key specifications include a 7‑32 V supply range, up to 250 mA collector current, and an oscillator that can run from 1 kHz to 300 kHz. Detailed pin assignments, block diagrams and typical application circuits are provided throughout the sheet.
| Supply voltage (Vcc) range | 7 V – 32 V (typical 15 V) |
|---|---|
| Maximum collector output current (Ice) | 250 mA |
| Operating temperature range | -30 °C to +85 °C |
| Oscillator frequency range | 1 kHz – 300 kHz (typical 40 kHz at Vcc=15 V) |
| Adjustable dead‑time | Yes |
The maximum collector output current is 250 mA.
The recommended supply voltage (Vcc) is from 7 V to 32 V, with 15 V typical.
The MB3759 is offered in 16‑pin plastic DIP, 16‑pin ceramic DIP, and 16‑pin plastic SOP packages.
At Vcc = 15 V the typical oscillator frequency is about 40 kHz.