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LM5166XDRCR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LM5166XDRCR product

LM5166XDRCR

Voltage Regulators - DC DC Switching Regulators

5 V fixed output65 V input500 mAsynchronous buckPFMCOTVSON-10

LM5166XDRCR is a wide-input synchronous buck regulator for generating a fixed 5 V rail at up to 500 mA from supplies between 3 V and 65 V.

Best for

  • Wide-input 5 V bias rails
  • Industrial and building automation
  • Low-power systems requiring a compact synchronous buck

Avoid if

  • Output current exceeds 500 mA
  • A tightly fixed switching frequency is required across all light-load conditions
  • Input transients exceed the 65 V recommended operating maximum

Check before use

  • Verify peak inductor current against the selected ILIM setting and inductor saturation rating.
  • For COT operation, implement an appropriate ripple-generation network.
  • Place the ceramic input capacitor close to VIN and GND to minimize the switching loop.

Key specifications

Input voltage
3 V to 65 V
Output voltage
5 V fixed
Output current
Up to 500 mA
Package
10-pin VSON, 3 mm × 3 mm
Control modes
PFM or COT

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level-1-260C-UNLIM
ECCN
-
HTSUS
-

Application

Industrial automationBuilding automationLow-power bias rails

Datasheet

Texas-Instruments-company-64.pdf

800 KB

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CAD Models

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3D Model
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Where to Buy

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Alternative components

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Design and risk insights

Questions & answers

LM5166XDRCR is a Texas Instruments synchronous step-down DC-DC converter with an internally fixed 5 V output. It integrates the high-side and low-side MOSFETs and is supplied in a 10-pin 3 mm × 3 mm VSON package.