LMR61428

Name: LMR61428
Brand: TI
SKU: LMR61428
Price: 0.79 USD

활성

1.2V~14V, 2.85A 2MHz 스텝업 전압 레귤레이터

지금 주문

데이터 시트

document-pdfAcrobat LMR61428 Low Input Voltage, Step-Up DC-DC Converter datasheet (Rev. A) (영어)

LMR61428

활성

데이터 시트

지금 주문

제품 상세 정보

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Topology

Boost

Type

Converter

Vin (min) (V)

1.2

Vin (max) (V)

14

Switching frequency (min) (kHz)

300

Switching frequency (max) (kHz)

2000

Features

Enable, Nonsynchronous rectification

Vout (min) (V)

1.24

Vout (max) (V)

14

Iq (typ) (µA)

100

Duty cycle (max) (%)

70

Switch current limit (typ) (A)

2.85

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Topology

Boost

Type

Converter

Vin (min) (V)

1.2

Vin (max) (V)

14

Switching frequency (min) (kHz)

300

Switching frequency (max) (kHz)

2000

Features

Enable, Nonsynchronous rectification

Vout (min) (V)

1.24

Vout (max) (V)

14

Iq (typ) (µA)

100

Duty cycle (max) (%)

70

Switch current limit (typ) (A)

2.85

VSSOP (DGK)

8

14.7 mm² 3 x 4.9

1.2V to 14V Input Voltage
Adjustable Output Voltage up to 14V
Switch Current up to 2.85A
Up to 2 MHz Switching Frequency
Low Shutdown Iq, <1µA
Cycle-by-Cycle Current Limiting
VSSOP Packaging (3.0 x 5.0 x 1.09mm)
WEBENCH Enabled

Performance Benefits

Extremely Easy to Use
Tiny Overall Solution Reduces System Cost

SIMPLE SWITCHER is a trademark of Texas Instruments. WEBENCH is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

1.2V to 14V Input Voltage
Adjustable Output Voltage up to 14V
Switch Current up to 2.85A
Up to 2 MHz Switching Frequency
Low Shutdown Iq, <1µA
Cycle-by-Cycle Current Limiting
VSSOP Packaging (3.0 x 5.0 x 1.09mm)
WEBENCH Enabled

Performance Benefits

Extremely Easy to Use
Tiny Overall Solution Reduces System Cost

SIMPLE SWITCHER is a trademark of Texas Instruments. WEBENCH is a trademark of Texas Instruments. All trademarks are the property of their respective owners.

The LMR61428 is a step-up DC-DC switching regulator for battery-powered and low input voltage systems that can achieve efficiencies up to 90%. It has a wide input voltage range from 1.2V to 14V and a possible regulated output voltage range of 1.24V to 14V. It has an internal 0.17Ω N-Channel MOSFET power switch.

The high switching frequency of up to 2MHz of the LMR61428 allows for tiny surface mount inductors and capacitors. Because of the unique constant-duty-cycle gated oscillator topology very high efficiencies are realized over a wide load range. The supply current is reduced to 80µA because of the BiCMOS process technology. In the shutdown mode, the supply current is less than 2.5µA. The LMR61428 is available in a VSSOP-8 package.

The LMR61428 is a step-up DC-DC switching regulator for battery-powered and low input voltage systems that can achieve efficiencies up to 90%. It has a wide input voltage range from 1.2V to 14V and a possible regulated output voltage range of 1.24V to 14V. It has an internal 0.17Ω N-Channel MOSFET power switch.

The high switching frequency of up to 2MHz of the LMR61428 allows for tiny surface mount inductors and capacitors. Because of the unique constant-duty-cycle gated oscillator topology very high efficiencies are realized over a wide load range. The supply current is reduced to 80µA because of the BiCMOS process technology. In the shutdown mode, the supply current is less than 2.5µA. The LMR61428 is available in a VSSOP-8 package.

filter

기타 AC/DC 및 DC/DC 컨버터(통합 FET) 찾기

다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new

대안 비교

비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀

LM2621

활성

1.2V~14V 입력 전압, 1A 부하 전류, 스텝업 DC-DC VSSOP package is pin-to-pin compatible

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능

TPS61376

활성

25V, 4.5A, 부스트 컨버터, 2.5% 정확도 입력 평균 전류 제한 및 실제 분리 TPS61376 has adjustable input current limited and true disconnection feature

기술 자료

star

=TI에서 선정한 이 제품의 인기 문서

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16개 모두 보기

	유형	직함		날짜
*	Data sheet	LMR61428 Low Input Voltage, Step-Up DC-DC Converter datasheet (Rev. A)		2013/04/04
	Application note	Semiconductor and IC Package Thermal Metrics (Rev. D)	PDF \| HTML	2024/03/25
	Application note	스트컨버터의 전력계 기본 계산 (Rev. D)	PDF \| HTML	2022/11/21
	Application note	Working With Boost Converters		2015/06/15
	User guide	AN-2281 LMR61428 Evaluation Module (Rev. A)		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-1229 SIMPLE SWITCHER PCB Layout Guidelines (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
	Application note	Understanding Boost Power Stages In Switchmode Power Supplies		1999/03/04

설계 및 개발

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평가 보드

LMR61428XMMEVM — LMR61428 평가 모듈

IntroductionThe LMR61428 evaluation module is designed to provide the power supply design engineer with a fully functional regulatordesign. The evaluation module takes the input from a single Li-Ion battery and boosts the voltage up to 5V at a constant loadcapability of 500mA. The switching (...)

사용 설명서: PDF