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LM51772RHAR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LM51772RHAR product

LM51772RHAR

Power Management (PMIC)

buck-boost controllerfour-switch55 VI2CUSB PDVQFN

LM51772RHAR is a 55 V four-switch buck-boost controller for external MOSFET power stages requiring regulated output across buck, boost, and transition operation.

Best for

  • Wide-input regulated DC/DC converters
  • USB Type-C power delivery source rails
  • Systems requiring dynamic output-voltage programming

Avoid if

  • Applications requiring an integrated power stage
  • Designs without capability to validate high-current switching layout and loop compensation

Check before use

  • Verify external MOSFET voltage rating including switching transients
  • Set slope compensation for the effective inductor value
  • Validate I2C configuration and default startup behavior

Key specifications

Input voltage
0 V to 55 V with VBIAS ≥ 3.5 V
Output voltage sensing
1 V to 55 V
Switching frequency
100 kHz to 2.2 MHz
Package
40-pin RHA VQFN, 6 mm × 6 mm

Compliance & Environment

RoHS
Yes
REACH
-
MSL
Level-1-260C-UNLIM
ECCN
-
HTSUS
-

Application

USB Type-C power deliveryWireless charging powerIndustrial DC/DC conversion

Datasheet

snvaab0

800 KB

Datasheet AI

CAD Models

Download ECAD models for LM51772RHAR: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
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3D Model
STEP file for mechanical design
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

LM51772RHAR is a Texas Instruments four-switch synchronous buck-boost controller in a 40-pin RHA VQFN package. It drives an external four-MOSFET power stage and supports buck, boost, and buck-boost regulation.