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LM5143A-Q1中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

LM5143A-Q1
廠商型號(hào)

LM5143A-Q1

功能描述

LM5143A-Q1 Automotive 3.5-V to 65-V Dual Synchronous Buck Controller With Low IQ

文件大小

4.05726 Mbytes

頁面數(shù)量

69

生產(chǎn)廠商 Texas Instruments
企業(yè)簡稱

TI德州儀器

中文名稱

美國德州儀器公司官網(wǎng)

原廠標(biāo)識(shí)
數(shù)據(jù)手冊

下載地址一下載地址二到原廠下載

更新時(shí)間

2025-1-6 11:47:00

LM5143A-Q1規(guī)格書詳情

1 Features

? AEC-Q100 qualified for automotive applications:

– Device temperature grade 1: –40°C to +125°C

ambient operating temperature

? Functional Safety-Capable

– Documentation available to aid functional safety

system design

? Versatile synchronous buck DC/DC controller

– Wide input voltage range of 3.5 V to 65 V

– 1 accurate, fixed 3.3-V, 5-V, or adjustable

outputs from 0.6 V to 55 V

– 150°C maximum junction temperature

– 3.3-μA typical shutdown mode current

– 15-μA typical no-load standby current

? Two interleaved synchronous buck channels

– Dual channel or single-output multiphase

– 65-ns tON(min) for high VIN/VOUT ratio

– 60-ns tOFF(min) for low dropout

? Inherent protection features for robust design

– Hiccup mode overcurrent protection

– Independent ENABLE and PGOOD functions

– Adjustable output voltage soft start

– VCC, VDDA, and gate-drive UVLO protection

– Thermal shutdown protection with hysteresis

? Optimized for CISPR 25 class 5 EMI requirements

– Slew-rate controlled adaptive gate drivers

– Spread spectrum reduces peak emissions

? 100-kHz to 2.2-MHz switching frequency

– SYNC in and SYNC out capability

– Selectable diode emulation or FPWM modes

? VQFN-40 package with wettable flank pins

? Create a custom design using the LM5143A-Q1

with WEBENCH? Power Designer

2 Applications

? Automotive electronic systems

? Infotainment systems, instrument clusters

? Advanced driver assistance systems (ADAS)

? Body electronics and lighting

3 Description

The LM5143A-Q1 is a 65-V DC/DC synchronous

buck controller for high-current single or dual outputs.

Deriving from a family of wide-VIN range controllers,

the device uses an interleaved, stackable, peak

current-mode control architecture for easy loop

compensation, fast transient response, excellent load

and line regulation, and accurate current sharing with

paralleled phases for higher output current. A highside

switch minimum on time of 65 ns provides large

step-down ratios, enabling the direct conversion from

12-V, 24-V, or 48-V inputs to low-voltage rails for

reduced system complexity and cost. The LM5143AQ1

continues to operate during input voltage dips as

low as 3.5 V, at nearly 100 duty cycle if needed.

The 15-μA no-load quiescent current with the

output voltage in regulation extends operating runtime

in battery-powered automotive systems. Power

the LM5143A-Q1 from the output of the switching

regulator or another available source for even lower

input quiescent current and power loss.

供應(yīng)商 型號(hào) 品牌 批號(hào) 封裝 庫存 備注 價(jià)格
TI(德州儀器)
2021+
VQFNP-40(6x6)
499
詢價(jià)
TI/德州儀器
23+
VQFN40
2000
原裝正品 實(shí)單支持
詢價(jià)
TI
22+
VQFNP (RWG)
6000
原廠原裝,價(jià)格優(yōu)勢!13246658303
詢價(jià)
TI德州儀器
22+23+
VQFN40
8000
新到現(xiàn)貨,只做原裝進(jìn)口
詢價(jià)
TI/德州儀器
24+
VQFN40
3500
原裝正品 有掛有貨 假一賠十
詢價(jià)
TI
21+
VQFNP-40
3200
公司只做原裝,誠信經(jīng)營
詢價(jià)
TI
24+
NA
6113
只做原裝正品,專注終端BOM表整單供應(yīng)
詢價(jià)
TI(德州儀器)
23+
NA/
8735
原廠直銷,現(xiàn)貨供應(yīng),賬期支持!
詢價(jià)
TI(德州儀器)
23+
VQFN(RHA)40
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
23+
NA
6800
原裝正品,力挺實(shí)單
詢價(jià)