LMR23625

Name: LMR23625
Brand: TI
SKU: LMR23625
Price: 1.568 USD

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SIMPLE SWITCHER®, 36V 2.5A Synchronous Step-Down Converter

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Data sheet

document-pdfAcrobat LMR23625 SIMPLE SWITCHER 36-V, 2.5-A Synchronous Step-Down Converter datasheet (Rev. E) PDF | HTML

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LMR23625

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Data sheet

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Product details

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

2.5

Vin (min) (V)

4.5

Vin (max) (V)

36

Switching frequency (min) (kHz)

200

Switching frequency (max) (kHz)

2200

Features

Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, UVLO adjustable, Wettable flanks package

Control mode

current mode

Vout (min) (V)

1

Vout (max) (V)

30

Iq (typ) (µA)

75

Duty cycle (max) (%)

97

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

2.5

Vin (min) (V)

4.5

Vin (max) (V)

36

Switching frequency (min) (kHz)

200

Switching frequency (max) (kHz)

2200

Features

Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, UVLO adjustable, Wettable flanks package

Control mode

current mode

Vout (min) (V)

1

Vout (max) (V)

30

Iq (typ) (µA)

75

Duty cycle (max) (%)

97

HSOIC (DDA)

8

29.4 mm² 4.9 x 6

WSON (DRR)

12

9 mm² 3 x 3

4-V to 36-V input range
2.5-A continuous output current
Integrated synchronous rectification
Current mode control
Minimum switch ON time: 60 ns
2.1-MHz switching frequency with PFM and forced-PWM-mode options (HSOIC)
2.1-MHz switching frequency with forced-PWM mode only (WSON)
Frequency synchronization to external clock
Internal compensation for ease of use
75-µA quiescent current at no load
Soft start into a prebiased load
High duty-cycle operation supported
Precision enable input
Output short-circuit protection with hiccup mode
Thermal protection
8-Pin HSOIC with PowerPAD™ package
12-Pin WSON wettable flanks package with PowerPAD™
Use the LMZM33603 module for faster time to market
Create a custom design using the LMR23625 with the WEBENCH Power Designer

4-V to 36-V input range
2.5-A continuous output current
Integrated synchronous rectification
Current mode control
Minimum switch ON time: 60 ns
2.1-MHz switching frequency with PFM and forced-PWM-mode options (HSOIC)
2.1-MHz switching frequency with forced-PWM mode only (WSON)
Frequency synchronization to external clock
Internal compensation for ease of use
75-µA quiescent current at no load
Soft start into a prebiased load
High duty-cycle operation supported
Precision enable input
Output short-circuit protection with hiccup mode
Thermal protection
8-Pin HSOIC with PowerPAD™ package
12-Pin WSON wettable flanks package with PowerPAD™
Use the LMZM33603 module for faster time to market
Create a custom design using the LMR23625 with the WEBENCH Power Designer

The LMR23625 SIMPLE SWITCHER is an easy-to-use 36-V, 2.5-A synchronous step-down regulator. With a wide input range from 4 V to 36 V, the device is suitable for various industrial application for power conditioning from unregulated sources. Peak current-mode control is employed to achieve simple control-loop compensation and cycle-by-cycle current limiting. A quiescent current of 75 µA makes it suitable for battery-powered systems. An ultra-low 2 µA shutdown current can further prolong battery life. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components. The device has an option for fixed-frequency FPWM mode to achieve small output-voltage ripple at light load. An extended family for HSOIC is available in 1-A (LMR23610) and 3-A (LMR23630) load current options in pin-to-pin compatible packages which allows simple, optimum PCB layout. A precision enable input allows simplification of regulator control and system power sequencing. Protection features include cycle-by-cycle current limit, hiccup-mode short-circuit protection and thermal shutdown due to excessive power dissipation.

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The LMR23625 SIMPLE SWITCHER is an easy-to-use 36-V, 2.5-A synchronous step-down regulator. With a wide input range from 4 V to 36 V, the device is suitable for various industrial application for power conditioning from unregulated sources. Peak current-mode control is employed to achieve simple control-loop compensation and cycle-by-cycle current limiting. A quiescent current of 75 µA makes it suitable for battery-powered systems. An ultra-low 2 µA shutdown current can further prolong battery life. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components. The device has an option for fixed-frequency FPWM mode to achieve small output-voltage ripple at light load. An extended family for HSOIC is available in 1-A (LMR23610) and 3-A (LMR23630) load current options in pin-to-pin compatible packages which allows simple, optimum PCB layout. A precision enable input allows simplification of regulator control and system power sequencing. Protection features include cycle-by-cycle current limit, hiccup-mode short-circuit protection and thermal shutdown due to excessive power dissipation.

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Technical documentation

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	Type	Title		Date
*	Data sheet	LMR23625 SIMPLE SWITCHER 36-V, 2.5-A Synchronous Step-Down Converter datasheet (Rev. E)	PDF \| HTML	01 Jul 2020
	Selection guide	Buck Converter Quick Reference Guide (Rev. B)		08 Apr 2021
	EVM User's guide	LMR23625CFPDRREVM User’s Guide		25 May 2017
	EVM User's guide	LMR23625C EVM User's Guide (Rev. A)		06 Jul 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LMR23625CEVM — LMR23625C Wide Vin Synchronous Step-Down Converter Evaluation Module

The LMR23625CEVM is a fully assembled and tested circuit for evaluating the LMR23625CDDAR Step-Down Converter. The LMR23625CEVM operates from 4.5V to 36V input (12V nominal) and provides a 5.0V/3.3V output at 2.5A. The board has jumper connectors to select output options, enable or disable the (...)

User guide: PDF

Not available on TI.com

Evaluation board

LMR23625CFPEVM — LMR23625CFPDDR Wide Vin Synchronous Step-down Converter Evaluation Module

The LMR23625CFPEVM is a fully assembled and tested circuit for evaluating the LMR23625CFPDRR step-down converter. The LMR23625CFPEVM operates from 4V to 36V input (12V nominal) and provides a 5.0V/3.3V output at 2.5A. The board has jumper connectors to select output options, enable or disable (...)

User guide: PDF