Datasheet > LP3990

LP3990

更新时间： 2024-11-23 12:09:55

品牌	Logo	应用领域
德州仪器 - TI		稳压器
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LP3990 150mA Linear Voltage Regulator for Digital Applications

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LP3990 数据手册

LP3990

www.ti.com

SNVS251I –MAY 2004–REVISED MAY 2013

LP3990 150mA Linear Voltage Regulator for Digital Applications

Check for Samples: LP3990

FEATURES

APPLICATIONS

•

1% Voltage Accuracy at Room Temperature

Stable with Ceramic Capacitor

•

Cellular Handsets

Hand-Held Information Appliances

Logic Controlled Enable

DESCRIPTION

No Noise Bypass Capacitor Required

Thermal-Overload and Short-Circuit Protection

The LP3990 regulator is designed to meet the

requirements of portable, battery-powered systems

providing an accurate output voltage, low noise, and

low quiescent current. The LP3990 will provide a

0.8V output from the low input voltage of 2V at up to

150mA load current. When switched into shutdown

mode via a logic signal at the enable pin, the power

consumption is reduced to virtually zero.

KEY SPECIFICATIONS

•

Input Voltage Range, 2.0 to 6.0V

Output Voltage Range, 0.8 to 3.3V

Output Current, 150mA

Output Stable - Capacitors, 1.0µF

Virtually Zero I_Q(Disabled), <10nA

Very Low I_Q(Enabled), 43µA

Low Output Noise, 150µV_RMS

PSRR, 55dB at 1kHz

The LP3990 is designed to be stable with space

saving ceramic capacitors as small as 1.0µF.

Performance is specified for a -40°C to 125°C

junction temperature range.

For output voltages other than 0.8V, 1.2, 1.35V, 1.5V,

1.8V, 2.5V, 2.8V, or 3.3V please contact your local

NSC sales office.

Fast Start Up, 105µs

PACKAGE

All available in Lead Free option.

•

4-Pin DSBGA, 1 mm x 1.3 mm

6-pin WQFN (SOT-23 Footprint)

SOT-23

For other package options contact your Texas Instruments sales

office.

Typical Application Circuit

LP3990

OUT

1.0 mF

OUT

1.0 mF

GND

(WQFN pin connections shown)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...24

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与LP3990相关器件

型号	品牌	获取价格	描述	数据表
LP3990A	LOWPOWER	获取价格	Shutdown,High PSRR
LP3990A		获取价格	300mA,Ultra-low noise, Small Package
LP3990A-18QVF		获取价格	300mA,Ultra-low noise, Small Package
LP3990A-28QVF		获取价格	300mA,Ultra-low noise, Small Package
LP3990A-33QVF		获取价格	300mA,Ultra-low noise, Small Package
LP3990MF-0.8	NSC	获取价格	150mA Linear Voltage Regulator for Digital Applications
LP3990MF-1.2	NSC	获取价格	150mA Linear Voltage Regulator for Digital Applications
LP3990MF-1.2	TI	获取价格	LP3990 150mA Linear Voltage Regulator for Digital Applications
LP3990MF-1.2/NOPB	TI	获取价格	150-mA, low-IQ, low-dropout voltage regulator with enable & low-VOUT 5-SOT-23 -40
LP3990MF-1.2/NOPB	NSC	获取价格	IC VREG 1.2 V FIXED POSITIVE REGULATOR, PDSO5, ROHS COMPLIANT, SOT-23, 5 PIN, Fixed Positi

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