This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
7.5-100V Wide Vin, 100mA Constant On-Time Synchronous Buck Regulator


Models (2)

Title Category Type Date
LM5019 Unencrypted PSpice Transient Model PSpice Model ZIP 25 Feb 2016
LM5019 PSpice Transient Model PSpice Model ZIP 14 Aug 2012

Design kits & evaluation modules (3)

Name Part# Type
LM5019 Isolated Bias Supply Evaluation Board LM5019ISOEVAL Evaluation Modules & Boards
LM5019 Wide Vin Synchronous Buck Regulator Evaluation Board LM5019EVAL Evaluation Modules & Boards
TPS23882 Type-3, 30W, 2-pair, PSE motherboard for 8-port PSE systems BOOST-PSEMTHR8-097 Evaluation Modules & Boards

Reference designs

Type 2 PoE PSE, 6kV Lightning Surge Reference Design

This reference design provides lightning surge protection solution for Power over Ethernet (PoE) Power Sourcing Equipment (PSE) systems based on TI's TPS23861 PSE controller. The need for implementing such protection will normally depend on the environment in which the PSE is intended to operate and (...)

View the Important Notice for reference designs covering authorized use, intellectual property matters and disclaimers.

Description Part Number Company Tool Type
Flybuck Single Isolated Power Supply without Opto, 18 - 30V input, 24V @ 100mA Output PMP7315 Texas Instruments Reference designs
Flybuck Single Isolated Power Supply without Opto, 18 - 30V input, 24V @ 100mA Output PMP7316 Texas Instruments Reference designs
Low-Power Isolated Supply, Input range: 36V to 75V, Output: 10V @ 120mA, LM5017 PMP7798 Texas Instruments Reference designs

Software (1)

LM5019 Buck Regulator Quick Start Component Calculator  (ZIP 227 KB )    29 Aug 2012  

Development tools (2)

Name Part# Type
Fly-Buck and Flyback Topology Selector FLYBUCK-FLYBACK-DESIGN-CALC Calculation Tools
LM5019 Quick Start Calculator LM5019QUICK-CALC Calculation Tools
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WEBENCH® Designer LM5019

Topology Option
  Min   Max Range
Vin  V
Vout  V
Iout  A
Vout 2  V
Iout 2  A
Ambient Temp  °C -40 to 125°C