Datasheet > LP3997

LP3997

更新时间： 2024-09-16 17:00:59

品牌	Logo	应用领域
微源半导体 - LOWPOWER		/
页数	文件大小	规格书
16页	800K
描述
Low Quiescent

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LP3997 数据手册

LP3997

2μA Ultra-Low Quiescent Current LDO

General Description

Features

The LP3997 family are high performance low dropout

（ LDO ） voltage regulators with ultra-low quiescent

current, high PSRR, fast transient response, and high

accuracy. The devices with advanced CMOS process are

suitable for many applications that require regulated

supplies of up to 300mA load current.

⚫ Wide Input Voltage Range: 1.6V to 6.0V

⚫ Fixed Output Voltage: 1.2V to 5V

⚫ Maximum Load Current Up to 300mA

⚫ High PSRR: 65dB@1kHz

⚫ Ultra-Low Quiescent Current: 2μA

⚫ Low Noise: 60μV_RMStypical

⚫ Low Dropout Voltage:

The LP3997 family include standard fixed output voltages

of 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, and 3.3V. The

devices are stable with a 1.0μF~10μF ceramic output

capacitor. The devices are protected from short circuit by

a current limit function and from over-heating by a thermal

overload protection.

- 60mV @ 100mA Load, V_OUT=3.3V

- 180mV @ 300mA Load, V_OUT=3.3V

⚫ Output Voltage Accuracy: ±1.5% @ 1mA typical

⚫ Thermal Shutdown Protection

⚫ Excellent Load/Line Transient Response

⚫ Line Regulation: 0.02%/V typical

⚫ Load Regulation: 20mV typical

⚫ Robust ESD capability:

The devices are available in standard DFN-4 (1mmx1mm)

and SOT23-5 packages.

Typical Application Circuit

- Human Body Model: 4kV

- Charged Device Model: 1kV

V_IN

V_OUT

VIN

VOUT

⚫ Package: SOT23-5, DFN1x1-4

C_IN

⚫ RoHS Compliant and 100% Lead (Pb)-Free

C_OUT

1μF

LP3997

1μF

Applications

⚫ Wearable devices

GND

OFF

⚫ Digital cameras

⚫ Audio devices

Order Information

⚫ Portable and battery-powered equipment

⚫ Post dc-to-dc regulation

⚫ Post regulation

LP3997-

F: Pb Free

⚫ Wireless handsets

Package Type

B5: SOT23-5

QV: DFN-4

OUT Voltage

12: 1.2V

15: 1.5V

18: 1.8V

25: 2.5V

28: 2.8V

30: 3.0V

33: 3.3V

Version: 5/22/2023

www.lowpowersemi.com

email: marketing@lowpowersemi.com

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