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LMR51450FNDRRR中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書

LMR51450FNDRRR
廠商型號(hào)

LMR51450FNDRRR

功能描述

LMR514x0, 36-V, 4-A/5-A Synchronous Step-Down DC/DC Converter With Low IQ

絲印標(biāo)識(shí)

L5145F

封裝外殼

WSON

文件大小

2.45433 Mbytes

頁(yè)面數(shù)量

39 頁(yè)

生產(chǎn)廠商 Texas Instruments
企業(yè)簡(jiǎn)稱

TI德州儀器

中文名稱

美國(guó)德州儀器公司官網(wǎng)

原廠標(biāo)識(shí)
數(shù)據(jù)手冊(cè)

下載地址一下載地址二到原廠下載

更新時(shí)間

2025-6-10 10:32:00

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LMR51450FNDRRR規(guī)格書詳情

1 Features

? Functional Safety-Capable

– Documentation available to aid functional safety

system design

? Configured for rugged industrial applications

– Wide Input voltage range: 4 V to 36 V

– 4-A or 5-A continuous output current

– ±1.0 tolerance voltage reference at room

temperature

– Minimum switching-on time: 75 ns (typical)

– Low Quiescent current: 25 μA

– Adjustable Frequency: 200 kHz to 1.1 MHz

– Frequency spread spectrum (PFM variant)

– Protection features

? Precision enable input

? Open-drain PGOOD

? VIN undervoltage lockout (UVLO)

? Cycle-by-cycle current limiting

? Short-circuit protection with hiccup mode

? Thermal shutdown

– Low dropout mode operation

– Junction temperature range: –40°C to 150°C

? Small solution size and ease of use

– Integrated synchronous rectification

– Internal compensation for ease of use

– WSON-12 package

? Various options in pin-to-pin compatible package

– PFM and forced PWM (FPWM) options

? Create a custom design using the LMR5144x0

with the WEBENCH? Power Designer

2 Applications

? Major appliances

? PLC, DCS, and PAC

? Test and measurement instrumentation

? Power delivery

3 Description

The LMR514x0 is a wide-VIN, easy-to-use

synchronous buck converter capable of driving up to

4-A or 5-A load current. With a wide input range of 4

V to 36 V, the device is suitable for a wide range of

industrial applications for power conditioning from an

unregulated source.

The LMR514x0 features adjustable switching

frequency from 200 kHz to 1.1 MHz with an external

resistor, which provides the flexibility to optimize either

efficiency or external component size. The device has

PFM version to realize high efficiency at light load and

FPWM version to achieve constant frequency, and

small output voltage ripple over the full load range.

Soft-start and compensation circuits are implemented

internally which allows the device to be used with

minimum external components.

The device has built-in protection features, such as

cycle-by-cycle current limit, hiccup mode short-circuit

protection, and thermal shutdown in case of excessive

power dissipation. The LMR514x0 is available in

WSON-12 package.

供應(yīng)商 型號(hào) 品牌 批號(hào) 封裝 庫(kù)存 備注 價(jià)格
TI(德州儀器)
24+
NA/
7350
現(xiàn)貨供應(yīng),當(dāng)天可交貨!免費(fèi)送樣,原廠技術(shù)支持!!!
詢價(jià)
TI(德州儀器)
23+
WSON-12(3x3)
1141
10年專業(yè)做電源IC/原裝現(xiàn)貨庫(kù)存
詢價(jià)
TI
24+
WSON12
99700
鄭重承諾只做原裝進(jìn)口現(xiàn)貨
詢價(jià)
TI/德州儀器
25+
原廠封裝
10280
原廠授權(quán)一級(jí)代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力!
詢價(jià)
Texas Instruments
25+
12-WSON
18000
TI優(yōu)勢(shì)渠道,大量原裝庫(kù)存現(xiàn)貨,交期快,歡迎詢價(jià)。
詢價(jià)
TI(德州儀器)
23+
15000
專業(yè)幫助客戶找貨 配單,誠(chéng)信可靠!
詢價(jià)
TI/德州儀器
24+
WSON12
60000
全新原裝現(xiàn)貨
詢價(jià)
TI(德州儀器)
2405+
Original
50000
只做原裝優(yōu)勢(shì)現(xiàn)貨庫(kù)存,渠道可追溯
詢價(jià)
TI(德州儀器)
2024+
N/A
500000
誠(chéng)信服務(wù),絕對(duì)原裝原盤
詢價(jià)
TI(德州儀器)
23+
13650
公司只做原裝正品,假一賠十
詢價(jià)