SG1524/SG2524/SG3524 is a switching power supply controller from LINFINITY Microelectronics Inc., with 8V to 40V operation range, 5V reference, 0.4% reference line and load regulation, < ± 1% reference temperature coefficient, 100Hz to 300KHz oscillator range, excellent external sync capability, dual 50mA output transistors, current limit circuitry, complete PWM power control circuitry, single ended or push-pull outputs, total supply current less than 10mA.
The INFINITY SG1524/SG2524/SG3524 is a monolithic integrated circuit containing all control circuitry for regulating power supply inverters or switching regulators. The device includes a voltage reference, error amplifier, oscillator, pulse width modulator, and current limiting/shut-down circuitry within a 16-pin dual-in-line package. It supports operation over a wide range of input voltages (8V to 40V) and offers a 5V reference with high stability.
| Reference Voltage | 5V |
|---|---|
| Reference Line Regulation | 0.4% |
| Oscillator Frequency Range | 100Hz to 300KHz |
| Output Transistor Current | 50mA |
| Operating Junction Temperature (SG1524) | -55°C to +125°C |
| Operating Junction Temperature (SG3524) | 0°C to +70°C |
The device provides a 5V reference.
The input voltage range is 8V to 40V.
Each output transistor can handle up to 50mA.