SG1526J [Microchip]

The SG1526 is a high-performance monolithic pulse width modulator circuit designed for fixed-frequency switching regulators and other power control applications. Included in an 18-pin dual-in-line package are a temperature compensated voltage reference, sawtooth oscillator, error amplifier, pulse width modulator, pulse metering and steering logic, and two low impedance power drivers. Also included are protective features such as soft-start and under voltage lockout, digital current limiting, double pulse
inhibit, a data latch for single pulse metering, adjustable deadtime, and provision for symmetry correction inputs. For ease of interface, all digital control ports are TTL and B-series CMOS compatible. Active LOW logic design allows wired-OR connections for maximum flexibility. This versatile device can be used to implement single-ended or push-pull switching regulators of either polarity, both transformer less and transformer coupled. The SG1526 is characterized for operation over the full military ambient
junction temperature range of -55°C to +150°C. The SG2526 is characterized for operation from -25°C to +150°C, and the SG3526 is characterized for operation from 0°C to +125°C

• 8V to 35V Operation
• 5V Reference Trimmed to ±1%
• 1Hz to 350kHz Oscillator Range
• Dual 100mA Source/Sink Outputs
• Digital Current Limiting
• Double Pulse Suppression
• Programmable Deadtime
• Undervoltage Lockout
• Single Pulse Metering
• Programmable Soft-start
• Wide Current Limit Common Mode
• Range TTL/CMOS Compatible Logic
• Ports Symmetry Correction Capability Guaranteed 6 Unit Synchronization