This document describes the SG1525A/1527A series of pulse width modulator integrated circuits, which are used to implement all types of switching power supplies with improved performance and lower external parts count.
The SG1525A/SG1527A series are pulse‑width modulator integrated circuits designed for switching power supplies. They include an on‑chip 5.1 V reference, adjustable dead‑time, internal soft‑start, and a sync input for multiple‑unit operation.
The devices are offered in several packages (J, DW, L, N) covering temperature ranges from –55 °C to 125 °C. Electrical specifications include an operating voltage of 8 V to 35 V, output current capability of 500 mA, and an oscillator frequency range of 100 Hz to 500 kHz.
| Operating Voltage Range | 8 V to 35 V |
|---|---|
| Reference Voltage | 5.1 V (trimmed to 41 %) |
| Oscillator Frequency Range | 100 Hz to 500 kHz |
| Output Current (Source or Sink) | 500 mA |
The device operates from 8 V up to 35 V.
It can source or sink up to 500 mA.
The oscillator works from 100 Hz to 500 kHz.