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LM5157EVM-BST

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Texas Instruments

LM5157 BOOST CONVERTER EVALUATION MODULE

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Development Boards, Kits, Programmers

LM5157EVM-BST

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Texas Instruments

LM5157 BOOST CONVERTER EVALUATION MODULE

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM5157EVM-BST

Board Type	Fully Populated
Current - Output	1.6 A
Frequency - Switching	2.1 MHz
Main Purpose	DC/DC, Step Up
Outputs and Type	Non-Isolated
Outputs and Type	1
Regulator Topology	Boost
Supplied Contents	Board(s)
Utilized IC / Part	LM5157
Voltage - Input [Max]	9 VDC
Voltage - Input [Min]	3 V
Voltage - Output	12 V

LM51571-Q1 Series

6A/4A, 50-V, 2.2-MHz wide VIN boost, flyback, & SEPIC converter with dual random spread spectrum

Part	Frequency - Switching	Outputs and Type	Outputs and Type	Regulator Topology	Supplied Contents	Utilized IC / Part	Board Type	Main Purpose	Voltage - Input [Max]	Voltage - Input [Min]	Voltage - Output	Current - Output	Grade	Operating Temperature [Min]	Operating Temperature [Max]	Number of Outputs	Output Type	Function	Supplier Device Package	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Package / Case	Output Configuration	Topology	Mounting Type	Qualification	Voltage - Output (Max) [Max]	Frequency - Switching [Min]	Frequency - Switching [Max]	Voltage - Output (Min/Fixed)
Texas Instruments LM5157EVM-BST	2.1 MHz	Non-Isolated	1	Boost	Board(s)	LM5157	Fully Populated	DC/DC Step Up	9 VDC	3 V	12 V	1.6 A
Texas Instruments LM51571RTER												4.33 A	Automotive	-40 °C	125 ¯C	1	Adjustable	Step-Up Step-Up/Step-Down	16-WQFN (3x3)	2.9 V	45 V	16-WFQFN Exposed Pad	Positive	Boost Flyback SEPIC	Surface Mount	AEC-Q200	48 V	100 kHz	2.2 MHz	1.5 V
Texas Instruments LM51571QRTERQ1												4.33 A	Automotive	-40 °C	150 °C	1	Adjustable	Step-Up Step-Up/Step-Down	16-WQFN (3x3)	1.5 V	45 V	16-WFQFN Exposed Pad	Positive	Boost Flyback SEPIC	Surface Mount	AEC-Q100	48 V	100 kHz	2.2 MHz	1.5 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Box	1	$ 58.80

Description

General part information

LM51571-Q1 Series

The LM5157 device is a wide input range, non-synchronous boost converter with integrated 50-V power switch.

The device can be used in boost, SEPIC, and flyback topologies. The device can start up from a single-cell battery with a minimum of 2.9 V. It can operate with an input supply voltage as low as 1.5 V if the BIAS pin is greater than 2.9 V.

The BIAS pin operates up to 45 V (50-V absolute maximum). The switching frequency is dynamically programmable with an external resistor from 100 kHz to 2.2 MHz. Switching at 2.2 MHz minimizes AM band interference and allows for a small solution size and fast transient response. To reduce the EMI of the power supply, the device provides a selectable Dual Random Spread Spectrum, which reduces the EMI over a wide frequency range.

Documents

Technical documentation and resources