Datasheet > LP3991

LP3991

更新时间： 2024-04-09 19:01:26

品牌	Logo	应用领域
微源半导体 - LOWPOWER		/
页数	文件大小	规格书
7页	676K
描述
Low Quiescent

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中文翻译

获取价格

数据手册

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LP3991 数据手册

LP3991

Low Power Consumption LDO

Description

Features



Ultra-low current consumption: 5µA (Typ)

Wide input voltage range: 1.5V to 5.5V

Fixed output voltages:

The LP3991 is a low-dropout voltage regulator with low

quiescent current and ultra-small packages. The LP3991

can deliver output current up to 250mA. The device offers

different fixed output voltages without external resistors,

for the nominal output voltage.



3.3V

The LP3991 integrated current limit protection and short

circuit protection and thermal shutdown protection in

order to protect system abnormal.



High output voltage accuracy: ±1.5%(Typ)

Low dropout voltage:



80mV (Typ) at 50mA (V_OUT= 3.3V)

170mV (Typ) at 100mA (V_OUT= 3.3V)

The output capacitor as small as 0.1µF is available for

LP3991 application.

The LP3991 is available in SOT23 package and

ultra-small TDFN-4 package with only 1mm  1mm size.



Current limit and short circuit protection

Thermal shutdown protection

EN logic compatible with 1.2V

Robust ESD capability:



Human Body Model: 2000V

Charged Device Model: 500V



Available in small packages:



SOT23

TDFN-4

SOT23

TDFN-4

Applications



Wearable Devices

Portable Medical Equipment

PDAs, Mobile Phones GPS devices

Ordering Information

Marking Information

Device

Vout Marking Package Shipping

LPS

LP3991 -

3.3V

LP3991-33B3F

SOT23

3K/Reel

4K/Reel

9EYWX

3.3V 9EX

F: Pb-Free

LP3991-33QVF

Marking indication: Y: Production year, W: Production

week, X: Production batch

TDFN-4

Package Type

QV: TDFN-4

B3: SOT23

Output Voltage

33: 3.3V

LP3991 Rev0.1 Mar.-2022

Preliminary Datasheet

Email: marketing@lowpowersemi.com

www.lowpowersemi.com

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与LP3991相关器件

型号	品牌	获取价格	描述	数据表
LP3991TL-0.8	INTERSIL	获取价格	300mA Linear Voltage Regulator for Digital Applications
LP3991TL-0.8	NSC	获取价格	IC VREG 0.8 V FIXED POSITIVE REGULATOR, PBGA4, 0.963 X 1.446 MM, LEAD FREE, MICRO SMD-4, F
LP3991TL-0.8/NOPB	TI	获取价格	300mA Linear Voltage Regulator for Digital Applications 4-DSBGA
LP3991TL-0.8/NOPB	NSC	获取价格	IC VREG 0.8 V FIXED POSITIVE REGULATOR, PBGA4, 0.963 X 1.446 MM, ROHS COMPLIANT, MICRO SMD
LP3991TL-1.2	INTERSIL	获取价格	300mA Linear Voltage Regulator for Digital Applications
LP3991TL-1.2	NSC	获取价格	300mA Linear Voltage Regulator for Digital Applications
LP3991TL-1.2/NOPB	TI	获取价格	具有使能功能的 300mA、低压降稳压器 \| YZR \| 4 \| -40 to 125
LP3991TL-1.3	NSC	获取价格	300mA Linear Voltage Regulator for Digital Applications
LP3991TL-1.3	INTERSIL	获取价格	300mA Linear Voltage Regulator for Digital Applications
LP3991TL-1.3/NOPB	TI	获取价格	具有使能功能的 300mA、低压降稳压器 \| YZR \| 4 \| -40 to 125