LMR14203

Name: LMR14203
Brand: TI
SKU: LMR14203
Price: 0.929 USD

활성

4.5V~42V, 0.3A 스텝다운 DC/DC 스위칭 레귤레이터(SOT-23)

지금 주문

데이터 시트

document-pdfAcrobat SIMPLE SWITCHER 42Vin, 0.3A Step-Dwn V-Reg in SOT-23 datasheet (Rev. C) (영어)

이 제품의 최신 버전이 있습니다

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대안 비교

비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀

TPS560430

활성

고효율 절전 모드를 갖춘 SIMPLE SWITCHER® 36V, 600mA 벅 레귤레이터 Smaller footprint, FPWM and PFM option.

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능

TPSM560R6H

활성

5mm x 5.5mm x 4mm QFN의 4.2V~60V 입력, 1V~16V 출력, 0.6A 스텝다운 모듈 Smaller design with an integrated-inductor power module.

LMR14203

활성

데이터 시트

지금 주문

제품 상세 정보

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

0.3

Vin (min) (V)

4.5

Vin (max) (V)

42

Switching frequency (min) (kHz)

950

Switching frequency (max) (kHz)

1500

Features

Enable, Over Current Protection

Control mode

current mode

Vout (min) (V)

0.765

Vout (max) (V)

34

Iq (typ) (µA)

1300

Duty cycle (max) (%)

87

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

0.3

Vin (min) (V)

4.5

Vin (max) (V)

42

Switching frequency (min) (kHz)

950

Switching frequency (max) (kHz)

1500

Features

Enable, Over Current Protection

Control mode

current mode

Vout (min) (V)

0.765

Vout (max) (V)

34

Iq (typ) (µA)

1300

Duty cycle (max) (%)

87

SOT-23-THN (DDC)

6

8.12 mm² 2.9 x 2.8

Input Voltage Range of 4.5V to 42V
Output Voltage Range of 0.765V to 34V
Output Current up to 0.3A
1.25 MHz Switching Frequency
Low Shutdown Iq, 16 µA Typical
Short Circuit Protected
Internally Compensated
Soft-Start Function
Thin SOT-23-6 Package (2.97 x 1.65 x 1mm)
Fully Enabled for WEBENCH® Power Designer

Performance Benefits

Tight Accuracy for Powering Digital ICs
Extremely Easy to Use
Tiny Overall Solution Reduces System Cost

All trademarks are the property of their respective owners.

Input Voltage Range of 4.5V to 42V
Output Voltage Range of 0.765V to 34V
Output Current up to 0.3A
1.25 MHz Switching Frequency
Low Shutdown Iq, 16 µA Typical
Short Circuit Protected
Internally Compensated
Soft-Start Function
Thin SOT-23-6 Package (2.97 x 1.65 x 1mm)
Fully Enabled for WEBENCH® Power Designer

Performance Benefits

Tight Accuracy for Powering Digital ICs
Extremely Easy to Use
Tiny Overall Solution Reduces System Cost

All trademarks are the property of their respective owners.

The LMR14203 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, it is suitable for a wide range of applications such as power conditioning from unregulated sources. They feature a low R_DSON (0.9Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 1.25 MHz allowing the use of small external components while still being able to have low output voltage ripple. Soft-start can be implemented using the shutdown pin with an external RC circuit allowing the user to tailor the soft-start time to a specific application.

The LMR14203 is optimized for up to 300 mA load current.

Additional features include: thermal shutdown, V_IN under-voltage lockout, and gate drive under-voltage lockout. The LMR14203 is available in a low profile SOT-6L package.

The LMR14203 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, it is suitable for a wide range of applications such as power conditioning from unregulated sources. They feature a low R_DSON (0.9Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 1.25 MHz allowing the use of small external components while still being able to have low output voltage ripple. Soft-start can be implemented using the shutdown pin with an external RC circuit allowing the user to tailor the soft-start time to a specific application.

The LMR14203 is optimized for up to 300 mA load current.

Additional features include: thermal shutdown, V_IN under-voltage lockout, and gate drive under-voltage lockout. The LMR14203 is available in a low profile SOT-6L package.

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다운로드 스크립트와 함께 비디오 보기 동영상

기술 자료

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21개 모두 보기

	유형	직함		날짜
*	Data sheet	SIMPLE SWITCHER 42Vin, 0.3A Step-Dwn V-Reg in SOT-23 datasheet (Rev. C)		2013/04/04
	White paper	Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A)	PDF \| HTML	2024/04/30
	Application note	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	2024/03/25
	Selection guide	Power Management Guide 2018 (Rev. R)		2018/06/25
	Technical article	Quantifying the value of wide VIN	PDF \| HTML	2016/06/15
	Technical article	DC/DC converter datasheets – System losses demystified	PDF \| HTML	2016/04/25
	Technical article	DC/DC converter datasheets – System efficiency demystified	PDF \| HTML	2016/04/18
	Application note	Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)		2014/09/12
	User guide	AN-2185 LMR14203/LMR14206 Demonstation Board (Rev. B)		2013/04/26
	Application note	AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)		2013/04/24
	Application note	AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)		2013/04/23
	Application note	AN-1197 Selecting Inductors for Buck Converters (Rev. B)		2013/04/23
	Application note	AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)		2013/04/23
	Application note	AN-1246 Stresses in Wide Input DC-DC Converters (Rev. C)		2013/04/23
	Application note	AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)		2013/04/23
	Application note	AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)		2013/04/23
	Application note	AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)		2013/04/23
	Application note	AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)		2013/04/23
	Application note	Input and Output Capacitor Selection		2005/09/19
	More literature	SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations		2005/07/12
	Application note	AN-643 EMI/RFI Board Design (Rev. B)		2004/05/03

설계 및 개발

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평가 보드

LMR14203XMKDEMO — LMR14203 Simple Switcher® 소형 풋프린트 42V 벅 레귤레이터 300mA 데모 보드

The LMR14203/06 is a PWM DC/DC buck (step-down) regulator. With a wide input range from 4.5V-42V, it is suitable for a variety of applications from automotive to power conditioning of unregulated sources. The LMR14203/LMR14006 Evaluation Board is designed to provide the design engineer with a fully (...)

사용 설명서: PDF

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시뮬레이션 모델

LMR14203X PSpice Average Model

SNVM220.ZIP (53 KB) - PSpice Model

LMR14203

4.5V~42V, 0.3A 스텝다운 DC/DC 스위칭 레귤레이터(SOT-23)

이 제품의 최신 버전이 있습니다

비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능

LMR14203

제품 상세 정보

Performance Benefits

Performance Benefits

기술 자료

설계 및 개발

LMR14203XMKDEMO — LMR14203 Simple Switcher® 소형 풋프린트 42V 벅 레귤레이터 300mA 데모 보드

PMP22339 — 서버 배터리 백업 충전을 위한 고전압 800W SEPIC 컨버터 레퍼런스 디자인

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