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LM51770DCPR AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LM51770DCPR product

LM51770DCPR

Component

buck-boostbidirectional78 Vfour-switchsynchronouspower controllerHTSSOP-38

LM51770DCPR is a wide-voltage four-switch buck-boost controller for regulated bidirectional DC/DC stages where the input may move above or below the output.

Best for

  • Wide-input regulated DC/DC converters
  • Bidirectional battery backup power stages
  • Industrial buck-boost power systems

Avoid if

  • Applications requiring an integrated power MOSFET solution
  • Designs that cannot accommodate external MOSFETs and a high-current inductor

Check before use

  • Confirm external MOSFET voltage and gate-charge capability
  • Validate current-sense resistor sizing and dissipation
  • Verify stability in both buck and boost operating regions
  • Follow the recommended power-loop and gate-drive layout practices

Key specifications

Input voltage sensing
2.9 V to 78 V
Output voltage sensing
3.3 V to 78 V
Maximum VIN
85 V absolute maximum
Switching frequency
100 kHz to 1.8 MHz
Peak current threshold
50 mV
Package
38-pin HTSSOP PowerPAD (DCP)

Compliance & Environment

RoHS
Yes
REACH
-
MSL
Level-3-260C-168 HR
ECCN
-
HTSUS
-

Application

Bidirectional battery backup systemsIndustrial DC/DC convertersMotor-drive control powerSolar charging controllers

Datasheet

45ab54bf630784217817ac47ad2dba7d_LM51770DCPR.pdf

800 KB

Datasheet AI

CAD Models

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3D Model
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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

LM51770DCPR is the 38-pin HTSSOP PowerPAD package option of the TI LM51770 four-switch synchronous buck-boost controller. The controller drives external N-channel MOSFETs and supports bidirectional current operation.