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Texas Instruments TPS56A37 10A Synchronous Buck Converter

Texas Instruments TPS56A37 10A Synchronous Buck Converter is an easy-to-use, high-efficiency, synchronous buck converter with a wide input voltage range of 4.5V to 28V. The device supports up to 10A continuous output current at output voltages between 0.6V and 13V. The TPS56A37 uses D-CAP3 control mode to provide a fast transient response, good line and load regulation, and no requirement for external compensation. It supports low equivalent series resistance (ESR) output capacitors like MLCC.

The TPS56A37 operates at Eco-mode to attain high efficiency at light load with a fixed 500kHz switching frequency. The TPS56A37 has an adjustable soft-start time by connecting the SS capacitor with the default 1.8ms and the SS pin floating. The TPS56A37 provides complete non-latched OV (overvoltage), UV (undervoltage), OC (overcurrent), OT (overtemperature), and UVLO (undervoltage lockout) protections combined with power-good indicator and output discharge function features. The Texas Instruments TPS56A37 is available in a 10-pin, 3.0mm×3.0mm HotRod QFN package, and the junction temperature is specified from –40°C to 150°C.

Features

4.5V to 28V input voltage range
0.6V to 13V output voltage range
Supports 10A continuous output current
Integrated 19.4mΩ and 8.5mΩ MOSFETs
0.6V ±1% reference voltage at 25°C
45uA low quiescent current
D-CAP3™ control mode for fast transient response
Eco-mode (auto-skip mode) for high light-load efficiency
Fixed 500kHz switching frequency

Cycle by cycle over the current limit
Adjustable soft-start time with default 1.8ms
Built-in output discharge function
Power-good indicator to monitor output voltage
Supports up to 98% duty operation
Non-latched protections for UV, OV, OT, and UVLO
-40°C to +150°C operating junction temperature
Small 10-pin 3.0mm×3.0mm HotRod™ QFN package
Pin-to-pin compatible with 6A TPS56637 and 8A TPS56837

Applications

Industrial PC, EPOS, factory automation and control
Multifunction printers, video conference system
General purposes for 12V, 19V, 24V power-bus supply

Monitors, TVs, speakers, PCs and notebooks, portable electronics

Texas Instruments TPS56A37 10A Synchronous Buck Converter

Features

Applications

Functional Block Diagram

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