LM5145 datasheet(49/60 Pages) TI2

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8 Device and Documentation Support

8.1 Device Support

8.1.1 Development Support

With an input operating voltage as low as 3.5V and up to 100V as specified in Table 8-1, the LM(2)514x/-Q1

family of synchronous buck controllers from TI provides flexibility, scalability and optimized design size for

a range of applications. These controllers enable DC/DC designs with high density, low EMI and increased

flexibility. Available EMI mitigation features include dual-random spread spectrum (DRSS) or triangular spread

spectrum (TRSS), split gate driver outputs for slew rate (SR) control, and integrated active EMI filtering (AEF).

All controllers are rated for a maximum operating junction temperature of 150°C and have AEC-Q100 grade 1

qualification.

Table 8-1. Synchronous Buck DC/DC Controller Family

DC/DC

CONTROLLER

SINGLE or

DUAL

VIN RANGE

CONTROL METHOD

GATE DRIVE

VOLTAGE

SYNC OUTPUT

KEY FEATURE

LM5137

Dual

4V to 80V

Peak current mode

90° phase shift

100% duty cycle

LM5137F

Dual

4V to 80V

Peak current mode

90° phase shift

SIL 2 or 3

LM25137

Dual

4V to 42V

Peak current mode

90° phase shift

100% duty cycle

LM25137F

Dual

4V to 42V

Peak current mode

90° phase shift

SIL 2 or 3

LM5141

Single

3.8V to 65V

Peak current mode

N/A

Split gate drive

LM25141

Single

3.8V to 42V

Peak current mode

N/A

Split gate drive

LM5143

Dual

3.5V to 65V

Peak current mode

90° phase shift

Split gate drive

LM25143

Dual

3.5V to 42V

Peak current mode

90° phase shift

Split gate drive

LM5145

Single

5.5V to 75V

Voltage mode

7.5V

180° phase shift

No shunt

LM5146

Single

5.5V to 100V

Voltage mode

7.5V

180° phase shift

100V input capability

LM5148

Single

3.5V to 80V

Peak current mode

180° phase shift

DRSS

LM25148

Single

3.5V to 42V

Peak current mode

180° phase shift

DRSS

LM5149

Single

3.5V to 80V

Peak current mode

180° phase shift

AEF

LM25149

Single

3.5V to 42V

Peak current mode

180° phase shift

AEF

LM5190

Single

5V to 80V

Peak current mode

7.5V

N/A

CC/CV

LM25190

Single

5V to 42V

Peak current mode

7.5V

N/A

CC/CV

For development support, see the following:

• LM25139 Simulation Models

• For TI's reference design library, visit TI Designs.

• For TI's WEBENCH Design Environment, visit the WEBENCH® Design Center

• TI designs:

– ADAS 8-Channel Sensor Fusion Hub Reference Design with Two 4Gbps Quad Deserializers

– Automotive EMI and Thermally Optimized Synchronous Buck Converter Reference Design

– Automotive High Current, Wide VIN Synchronous Buck Controller Reference Design Featuring LM5141-

– 25W Automotive Start-Stop Reference Design Operating at 2.2MHz

– Synchronous Buck Converter for Automotive Cluster Reference Design

– 137W Holdup Converter for Storage Server Reference Design

– Automotive Synchronous Buck With 3.3V at 12.0A Reference Design

– Automotive Synchronous Buck Reference Design

– Wide Input Synchronous Buck Converter Reference Design With Frequency Spread Spectrum

– Automotive Wide VIN Front-end Reference Design for Digital Cockpit Processing Units

• To view a related device of this product, see the LM25148.

www.ti.com

LM25139

SLVSJ80 – OCTOBER 2025

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