LM25118MHE/NOPB AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

LM25118MHE/NOPB product

LM25118MHE/NOPB

DC DC Switching Controllers

buck-boost controllerwide input voltageexternal MOSFET driveremulated current modeHTSSOP-20

LM25118MHE/NOPB is a wide-input buck-boost controller for external MOSFET power stages, supporting smooth transition between buck and buck-boost operation.

Best for

  • Industrial wide-input DC power stages
  • Buck-boost supplies where input may cross the output voltage
  • External-MOSFET designs requiring programmable switching frequency

Avoid if

  • An integrated regulator with internal power switches is required
  • The power stage cannot tolerate external current sensing and compensation design effort
  • Input startup voltage can remain below 5 V

Check before use

  • Confirm maximum VIN transients remain below the 45 V absolute maximum VIN rating.
  • Verify the external MOSFET gate charge is compatible with the VCC regulator and gate-driver current capability.
  • Test loop stability in buck and buck-boost operating regions.

Key specifications

Input voltage
3 V to 42 V; VIN ≥ 5 V for startup
Switching frequency
50 kHz to 500 kHz programmable
Control
Emulated peak current mode
Package
20-pin HTSSOP with exposed pad

Compliance & Environment

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

Application

Industrial buck-boost power suppliesWide-input DC power conversion

CAD Models

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PCB Footprint
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3D Model
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KiCad Library
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Where to Buy

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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

LM25118MHE/NOPB is a Texas Instruments wide-voltage buck-boost switching regulator controller in a 20-pin HTSSOP package with an exposed thermal pad. It drives external high-side buck and low-side boost MOSFETs.