LP3981ILD-3.0/NOPB

更新时间： 2024-11-15 13:09:27

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德州仪器 - TI		稳压器
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LP3981

www.ti.com

SNVS159G –OCTOBER 2001–REVISED MAY 2013

LP3981 Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator

Check for Samples: LP3981

FEATURES

APPLICATIONS

•

Small, Space Saving VSSOP-8

•

CDMA Cellular Handsets

Low Thermal Resistance in WSON-6 Package

Gives Excellent Power Capability

Wideband CDMA Cellular Handsets

GSM Cellular Handsets

•

Logic Controlled Enable

Portable Information Appliances

Tiny 3.3V ± 5% to 2.5V, 300mA Converter

Stable with Ceramic and High Quality

Tantalum Capacitors

•

Fast Turn-On

DESCRIPTION

The LP3981's performance is optimized for battery

powered systems to deliver ultra low noise, extremely

low dropout voltage and low quiescent current.

Regulator ground current increases only slightly in

dropout, further prolonging the battery life.

Thermal Shutdown and Short-Circuit Current

Limit

KEY SPECIFICATIONS

•

2.5 to 6.0V Input Range

300mA Output

Power supply rejection is better than 60 dB at low

frequencies. This high power supply rejection is

maintained down to lower input voltage levels

common to battery operated circuits.

60dB PSRR at 1kHz

≤1μA Quiescent Current when Shut Down

Fast Turn-On Time: 120 μs (Typ.) with C_BYPASS

= 0.01uF

The device is ideal for mobile phone and similar

battery powered wireless applications. It provides up

to 300 mA, from a 2.5V to 6V input, consuming less

than 1µA in disable mode.

•

132mV Typ Dropout with 300mA Load

35μVrms Output Noise over 10Hz to 100kHz

The LP3981 is available in VSSOP-8 package. For

LP3981 in WSON-6 package, contact TI sales offices.

Performance is specified for −40°C to +125°C

temperature range. The device available in the

following output voltages; 2.5V, 2.7V, 2.8V, 2.83V,

3.0V, 3.03V and 3.3V as standard. Other output

options can be made available, please contact your

local TI sales office.

−40 to +125°C Junction Temperature Range for

Operation

•

2.5V, 2.7V, 2.8V, 2.83V, 3.0V, 3.03V, and 3.3V

Outputs Standard

Typical Application Circuit

Note: Pin Numbers in parenthesis indicate WSON-6 package.

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...21

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LP3981ILD-3.0/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LP3981ILD-3.0	TI	类似代替	LP3981 Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator

与LP3981ILD-3.0/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LP3981ILD-3.03	NSC	获取价格	Micropower, 300mA Ultra Low-Dropout CMOS Voltage
LP3981ILD-3.3	NSC	获取价格	Micropower, 300mA Ultra Low-Dropout CMOS Voltage
LP3981ILD-3.3	TI	获取价格	LP3981 Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator
LP3981ILD-3.3/NOPB	NSC	获取价格	IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 0.2 V DROPOUT, DSO6, LLP-6, Fixed Positive Sin
LP3981ILD-3.3/NOPB	TI	获取价格	300-mA, high-accuracy, low-dropout voltage regulator with enable 6-WSON -40 to 125
LP3981ILD-3.3/NOPB	ROCHESTER	获取价格	3.3V FIXED POSITIVE LDO REGULATOR, 0.2V DROPOUT, DSO6, LLP-6
LP3981ILDX-2.5	TI	获取价格	LP3981 Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator
LP3981ILDX-2.5	NSC	获取价格	Micropower, 300mA Ultra Low-Dropout CMOS Voltage
LP3981ILDX-2.5/NOPB	TI	获取价格	具有使能功能的 300mA、高精度、低压降稳压器 \| NGC \| 6 \| -40 to 1
LP3981ILDX-2.7	NSC	获取价格	Micropower, 300mA Ultra Low-Dropout CMOS Voltage

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