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A7987集成電路(IC)的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器規(guī)格書PDF中文資料

A7987
廠商型號(hào)

A7987

參數(shù)屬性

A7987 封裝/外殼為16-PowerTSSOP(0.173",4.40mm 寬);包裝為卷帶(TR)剪切帶(CT)Digi-Reel? 得捷定制卷帶;類別為集成電路(IC)的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器;產(chǎn)品描述:61 V 3A ASYNCHRONOUS STEP-DOWN S

功能描述

降壓
61 V, 3 A asynchronous step-down switching regulator with adjustable current limitation for automotive
61 V 3A ASYNCHRONOUS STEP-DOWN S

文件大小

2.48591 Mbytes

頁(yè)面數(shù)量

36 頁(yè)

生產(chǎn)廠商 STMicroelectronics
企業(yè)簡(jiǎn)稱

STMICROELECTRONICS意法半導(dǎo)體

中文名稱

意法半導(dǎo)體集團(tuán)官網(wǎng)

原廠標(biāo)識(shí)
數(shù)據(jù)手冊(cè)

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更新時(shí)間

2025-1-1 23:00:00

A7987規(guī)格書詳情

A7987屬于集成電路(IC)的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的A7987DC-DC 開關(guān)控制器PMIC(電源管理集成電路)DC 到 DC 開關(guān)式控制器是用于高效率電路的穩(wěn)壓 IC,其配置為生成高于(突升或步升)或低于(突降或步降)輸入電源的輸出電源電壓。其他拓?fù)浣Y(jié)構(gòu)可能包括:降壓-升壓、反激、正激、Cuk、SEPIC、全橋、半橋和推挽式。這些器件不同于需要最小電壓并“燒盡”多余電壓的線性穩(wěn)壓器。

Features

? 3 A DC output current

? 4.5 V to 61 V operating input voltage

? Adjustable fsw (250 kHz to 1.5 MHz)

? Output voltage adjustable from 0.8 V to VIN

? Synchronization

? Adjustable soft-start time

? Adjustable current limitation

? VBIAS improves efficiency at light load

? PGOOD open collector output

? Digital frequency fold-back in short-circuit

? Auto-recovery thermal shutdown

? Qualified following AEC-Q100 requirements

Applications

? Designed for 24 V automotive battery systems

? Industrial and commercial vehicles

Description

The A7987 is a step-down monolithic switching regulator that can deliver up to 3 A

DC. The adjustable output voltage ranges from 0.8 V to VIN. The wide input voltage

range and the almost 100 duty cycle capability meet the fail-safe specifications for

automotive systems. The embedded switch-over feature on the VBIAS pin maximizes

efficiency at light load. The adjustable current limitation, designed to select the

inductor RMS current in accordance with the nominal output current, and the high

switching frequency capability make the size of the application compact. Pulse-bypulse

current sensing with digital frequency fold-back implements an effective

constant current protection over the different application conditions. The peak current

fold-back decreases the stress of the power components in heavy short-circuit

conditions. The PGOOD open collector output can also implement the output voltage

sequencing during the power-up phase. Multiple devices can be synchronized

sharing the SYNCH pin to prevent beating noise for low noise requirements such as

in infotainment applications.

產(chǎn)品屬性

更多
  • 產(chǎn)品編號(hào):

    A7987TR

  • 制造商:

    STMicroelectronics

  • 類別:

    集成電路(IC) > PMIC - 穩(wěn)壓器 - DC DC 開關(guān)式控制器

  • 系列:

    Automotive, AEC-Q100

  • 包裝:

    卷帶(TR)剪切帶(CT)Digi-Reel? 得捷定制卷帶

  • 輸出類型:

    晶體管驅(qū)動(dòng)器

  • 功能:

    降壓

  • 輸出配置:

  • 拓?fù)洌?/span>

    降壓升壓

  • 輸出階段:

    1

  • 電壓 - 供電 (Vcc/Vdd):

    4.5V ~ 61V

  • 頻率 - 開關(guān):

    250kHz ~ 1.5MHz

  • 占空比(最大):

    100%

  • 同步整流器:

  • 時(shí)鐘同步:

  • 控制特性:

    限流,使能,頻率控制,電源良好,軟啟動(dòng)

  • 工作溫度:

    -40°C ~ 150°C(TJ)

  • 安裝類型:

    表面貼裝型

  • 封裝/外殼:

    16-PowerTSSOP(0.173",4.40mm 寬)

  • 供應(yīng)商器件封裝:

    16-HTSSOP

  • 描述:

    61 V 3A ASYNCHRONOUS STEP-DOWN S

供應(yīng)商 型號(hào) 品牌 批號(hào) 封裝 庫(kù)存 備注 價(jià)格
ST/意法半導(dǎo)體
21+
HTSSOP-16
6000
原裝現(xiàn)貨
詢價(jià)
ST(意法半導(dǎo)體)
23+
TSSOP16EP
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)
ST(意法)
23+
NA/
8735
原廠直銷,現(xiàn)貨供應(yīng),賬期支持!
詢價(jià)
ST/意法半導(dǎo)體
24+
HTSSOP-16
7188
秉承只做原裝 終端我們可以提供技術(shù)支持
詢價(jià)
ST/意法半導(dǎo)體
23+
HTSSOP-16
30000
原裝正品公司現(xiàn)貨,假一賠十!
詢價(jià)
STMICROELECTRONICS
22+
SMD
518000
明嘉萊只做原裝正品現(xiàn)貨
詢價(jià)
ST(意法半導(dǎo)體)
1932+
HTSSOP-16
2789
向鴻優(yōu)勢(shì)倉(cāng)庫(kù)庫(kù)存-絕對(duì)原裝正品-不做假貨!
詢價(jià)
ST/意法半導(dǎo)體
21+
HTSSOP-16
8080
只做原裝,質(zhì)量保證
詢價(jià)
ST/意法
24+
HTSSOP16
5000
全新原裝正品,現(xiàn)貨銷售
詢價(jià)
ST/意法
23+
HTSSOP16
20000
詢價(jià)