LM25575MH/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM25575MH/NOPB is a high-voltage step-down switching regulator from Texas Instruments, operating within an input voltage range of 6 V to 42 V. It delivers a maximum output current of 1.5 A with an adjustable output voltage spanning from 1.225 V to 40 V. The device supports a switching frequency between 50 kHz and 1 MHz, utilizing current-mode control for rapid transient response. It is housed in a 16-pin HTSSOP package with an exposed pad (TSSOP-EP-16) for thermal management. The component functions reliably across an extended temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side power switch enables compact design without external MOSFETs
• Current-mode control architecture provides fast line and load transient response
• Fixed-frequency operation simplifies external component selection and filtering
• Built-in thermal shutdown protects the device during overload or excessive heat conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Automotive infotainment and sensor power supplies
• Distributed power systems requiring wide input ranges
• Battery-powered equipment with variable source voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MH' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 'NOPB' designation ensures compliance with RoHS standards and absence of lead-based materials. Cross-reference the manufacturer's latest datasheet revision to ensure compatibility with current environmental regulations and pinout configurations before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when a wide input voltage range up to 42 V is necessary for buck conversion applications. The 1.5 A output capability suits moderate power loads where efficiency and thermal performance are critical. Consider the fixed switching frequency options to minimize electromagnetic interference filtering requirements. Ensure the PCB layout accommodates the exposed pad for adequate heat dissipation under full load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the SIMPLE SWITCHER family of integrated power modules, designed to simplify DC/DC converter design by combining the controller and power switch in a single package. The LM25575 series specifically targets high-voltage applications, offering a robust solution for converting higher bus voltages down to lower logic or peripheral levels efficiently.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include the LM25575MHX/NOPB for identical electrical specifications but different reel packaging. For automotive-grade requirements, consider the LM25575QMH-NOPB variant which meets AEC-Q100 qualification standards while maintaining similar functional parameters.