SG3524 Buck-Boost Type DC-DC Converter SOIC-16 SMD IC

Description

SG3524 Buck-Boost Type DC-DC Converter SOIC-16 SMD IC The SG3524 is a versatile, monolithic integrated circuit that provides all the essential functions for building a regulating power supply, inverter, or switching regulator. Housed in a compact 16-pin SOIC package, this IC is ideal for a wide range of power control applications. It is specifically designed for switching regulators of any polarity, transformer-coupled DC-to-DC converters, and transformerless voltage doublers. The SG3524 simplifies power supply design by integrating key components onto a single chip, including a voltage reference, error amplifier, oscillator, pulse-width modulator, and dual alternating output transistors. Features Complete PWM Control: Integrates all the necessary circuitry for Pulse-Width Modulation (PWM) power control. Versatile Output Stage: Uncommitted outputs allow for either single-ended or push-pull configurations. Wide Operating Voltage: Operates over a supply voltage range of 8V to 40V. On-Chip Reference: Provides a stable 5V reference voltage with a maximum temperature variation of 1%. Programmable Oscillator: The oscillator frequency can be set using an external resistor (RT) and capacitor (CT), with an operational range up to 300kHz. Low Standby Current: Consumes a typically low 8mA of standby current. Integrated Protection: Includes current-limiting and shutdown circuitry to protect the power supply and the load. Specifications Specification Value Package SOIC-16 Input Voltage Range (Vcc) 8 V to 40 V Reference Output Voltage 4.6 V (Min), 5.0 V (Typ), 5.4 V (Max) Collector Output Current 100 mA (Max) Reference Output Current 50 mA (Max) Oscillator Frequency Range Up to 300 kHz Maximum Duty Cycle (Each Output) 45% Operating Free-Air Temperature Range 0°C to 70°C Standby Current 8 mA (Typ), 10 mA (Max) Turn-Off Voltage Rise Time (tr) 0.2 µs Turn-On Voltage Fall Time (tf) 0.1 µs Applications Transformer-Coupled DC/DC Converters. Switching Regulators. Inverters. Polarity Converters. High-Power Output Applications. Datasheet SG3524

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