LM5163DDAR

Voltage Regulators - DC DC Switching Regulators Overview

The LM5163DDAR is a synchronous buck DC-DC converter from Texas Instruments, designed for high-voltage applications with an input voltage range of 6 V to 100 V. It delivers up to 0.6 A output current and supports adjustable output voltages between 1.2 V and 90 V. The device operates at switch frequencies ranging from 75 kHz to 1000 kHz and functions within a junction temperature range of -40 °C to 150 °C. Packaged in an 8-pin HSOP PowerPAD, it integrates internal power MOSFETs and features ultra-low quiescent current for enhanced efficiency.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side and low-side power MOSFETs provide up to 0.6 A output current capability.
• Constant on-time (COT) control architecture ensures stable operation with excellent transient response.
• Ultra-low IQ minimizes power consumption during standby and light-load conditions.
• Diode emulation mode optimizes efficiency at light loads by reducing switching losses.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial systems requiring wide input voltage regulation
• High cell count battery packs
• Point-of-load (POL) conversion stages
• General-purpose high-voltage DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix DDAR corresponds to the Tape & Reel packaging format when ordering. Confirm RoHS compliance and lead-free status align with project requirements. Ensure the 8-SO PowerPAD thermal pad connection is properly managed in the PCB layout to maintain the specified 150 °C operating temperature limit. Cross-reference the datasheet for any recent PCN updates regarding assembly sites or material changes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs needing a compact solution for stepping down high voltages to lower rails. The 8-pin package offers a balance of thermal performance and board space efficiency. Consider the minimum 6 V input constraint and ensure the load does not exceed 0.6 A. The adjustable output allows flexibility for various logic and analog supply needs within the 1.2 V to 90 V range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM516x family of high-voltage synchronous buck converters. It shares architectural similarities with the LM5164 but differs in output current capacity, supporting 0.6 A compared to the LM5164's 1 A. Both utilize the same 8-SO PowerPAD package and COT control topology, making them suitable for similar high-voltage industrial and battery applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5164DDAR serves as a higher-current alternative within the same package family.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the minimum input voltage required for the LM5163DDAR?

The device requires a minimum input voltage of 6 V to operate correctly.

Does the LM5163DDAR support remote shutdown?

Yes, the device includes a precision enable pin that can be used for remote shutdown and sequencing control.