LM5145 datasheet(59/70 Pages) TI

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10 Device and Documentation Support

10.1 Device Support

10.1.1 Development Support

With an input operating voltage as low as 3.5 V and up to 100 V as specified in Table 10-1, the LM(2)514x family

of synchronous buck controllers from TI provides flexibility, scalability and optimized solution size for a range

of applications. These controllers enable DC/DC solutions 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).

Table 10-1. Synchronous Buck DC/DC Controller Family

DC/DC

CONTROLLER

SINGLE or

DUAL

VIN RANGE

CONTROL METHOD

GATE DRIVE

VOLTAGE

SYNC OUTPUT

EMI MITIGATION

LM25141

Single

3.8 V to 42 V

Peak current mode

5 V

N/A

SR control, TRSS

LM25143

Dual

3.5 V to 42 V

Peak current mode

5 V

90° phase shift

SR control, TRSS

LM25145

Single

6 V to 42 V

Voltage mode

7.5 V

180° phase shift

N/A

LM25148

Single

3.5 V to 42 V

Peak current mode

5 V

180° phase shift

DRSS

LM25149

Single

3.5 V to 42 V

Peak current mode

5 V

180° phase shift

AEF, DRSS

LM5141

Single

3.8 V to 42 V

Peak current mode

5 V

N/A

SR control, TRSS

LM5143

Dual

3.5 V to 65 V

Peak current mode

5 V

90° phase shift

SR control, TRSS

LM5145

Single

6 V to 75 V

Voltage mode

7.5 V

180° phase shift

N/A

LM5146

Single

5.5 V to 100 V

Voltage mode

7.5 V

180° phase shift

N/A

LM5148

Single

3.5 V to 80 V

Peak current mode

5 V

180° phase shift

DRSS

LM5149

Single

3.5 V to 80 V

Peak current mode

5 V

180° phase shift

AEF, DRSS

For development support see the following:

• LM5148 Quickstart Calculator

• LM5148 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 4-Gbps 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 2.2 MHz

– Synchronous Buck Converter for Automotive Cluster Reference Design

– 137W Holdup Converter for Storage Server Reference Design

– Automotive Synchronous Buck With 3.3V @ 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

• Technical Articles:

– High-Density PCB Layout of DC/DC Converters

– Synchronous Buck Controller Solutions Support Wide VIN Performance and Flexibility

– How to Use Slew Rate for EMI Control

• To view a related device of this product, see the LM25141

10.1.1.1 Custom Design with WEBENCH® Tools

Click here to create a custom design using the LM5148 device with the WEBENCH Power Designer.

1. Start by entering the input voltage (VIN), output voltage (VOUT), and output current (IOUT) requirements.

2. Optimize the design for key parameters such as efficiency, footprint, and cost using the optimizer dial.

www.ti.com

LM5148

SNVSC01 – FEBRUARY 2023

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