Datasheet > LD49100

LD49100

更新时间： 2024-10-20 14:57:23

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
28页	5030K
描述
1 A, low quiescent current, low-noise voltage regulator with soft start - Automotive grade

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LD49100 数据手册

LD49100

Datasheet

Automotive-grade, 1 A, low quiescent current, low-noise regulator with soft-start

Features

•

AEC-Q100 qualified

DFN6 (3x3)

Temperature range: -40 °C to 125 °C

Input voltage from 1.5 to 5.5 V

Wettable Flanks

Ultra low-dropout voltage (200 mV typ. at 1 A load)

Very low quiescent current (20 µA typ. at no load, 200 µA typ. at 1 A load, 1 µA

max. in off mode)

•

Very low-noise with no bypass capacitor (30 µV_RMSat V_OUT= 0.8 V)

Output voltage tolerance: ± 2.0% at 25 °C

1 A guaranteed output current

Wide range of output voltages available on request: 0.8 V to 4.5 V with 100 mV

step and adjustable from 0.8 V

•

Logic-controlled electronic shutdown

Power Good function

Stable with ceramic capacitors C_OUT= 1 µF

Internal current and thermal limit

DFN6 (3x3 mm) package with wettable flanks

Applications

•

Infotainment and cluster

Maturity status link

ADAS

LD49100

Telematics

Body electronics

Description

The LD49100 provides 1 A maximum current with an input voltage range from 1.5 V

to 5.5 V and a typical dropout voltage of 200 mV. The device is stable with ceramic

capacitors on the input and output.

The ultra low-dropout voltage, low quiescent current and low-noise features make it

suitable for a wide range of automotive applications. Power supply rejection is 70 dB

at low frequency and starts to roll off at 10 kHz. Enable logic control function puts the

LD49100 in shutdown mode, allowing a total current consumption lower than 1 μA.

The device features a precise Power Good indicator, useful to monitor and sequence

functions. Internal 1 ms soft-start circuit allows the reduction of inrush current.

The device includes the short-circuit constant current limiting and thermal protection.

The LD49100 is available in AEC-Q100 grade 1 qualified version, in a small 6-pin

DFN6 (3x3 mm) with wettable flank package.

DS13115 - Rev 4 - February 2021

www.st.com

For further information contact your local STMicroelectronics sales office.

12 3 4 5 6 7...28

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与LD49100相关器件

型号	品牌	获取价格	描述	数据表
LD49150	STMICROELECTRONICS	获取价格	1.5A Very low drop for low output voltage regulator
LD49150PT08R	STMICROELECTRONICS	获取价格	1.5A Very low drop for low output voltage regulator
LD49150PT10R	STMICROELECTRONICS	获取价格	1.5A Very low drop for low output voltage regulator
LD49150PT12R	STMICROELECTRONICS	获取价格	1.5A Very low drop for low output voltage regulator
LD49150PU10R	STMICROELECTRONICS	获取价格	1.5 A very low drop for low output voltage regulator
LD49150PU12R	STMICROELECTRONICS	获取价格	1.5 A very low drop for low output voltage regulator
LD49150XX08	STMICROELECTRONICS	获取价格	1.5 A very low drop for low output voltage regulator
LD49150XX10	STMICROELECTRONICS	获取价格	1.5 A very low drop for low output voltage regulator
LD49150XX12	STMICROELECTRONICS	获取价格	1.5 A very low drop for low output voltage regulator
LD49300	STMICROELECTRONICS	获取价格	3A Very low drop for low output voltage regulator

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