TPS71334

更新时间： 2024-11-05 04:48:43

品牌	Logo	应用领域
德州仪器 - TI		调节器
页数	文件大小	规格书
19页	726K
描述
Dual 250 mA Output, UltraLow Noise, High PSRR, Low-Dropout Linear Regulator with Integrated SVS

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TPS71334 数据手册

TPS71319

TPS71334

A ct ual S i ze

(3 m m x 3 m m )

www.ti.com

SBVS055A–DECEMBER 2004–REVISED JANUARY 2005

Dual 250 mA Output, UltraLow Noise, High PSRR,

Low-Dropout Linear Regulator with Integrated SVS

FEATURES

DESCRIPTION

•

Dual 250 mA High-Performance RF LDOs

The TPS713xx family of low-dropout (LDO) voltage

regulators is tailored to noise-sensitive and RF appli-

cations. These products feature dual 250 mA LDOs

with ultralow noise, high power-supply rejection ratio

(PSRR), and fast transient and start-up response.

These devices also feature an integrated supply

voltage supervisor (SVS) that monitors the voltage at

OUT2 and will assert if the voltage falls to 95%

(typical) of the measured output. Each regulator

output is stable with low-cost 2.2 µF ceramic output

capacitors and features very low dropout voltages

(125 mV typical at 250 mA). Each regulator achieves

fast start-up times (approximately 60 µs with a

0.001 µF bypass capacitor) while consuming very low

quiescent current (300 µA typical with both outputs

enabled). When the device is placed in standby

mode, the supply current is reduced to less than

0.3 µA typical. Each regulator exhibits approximately

32 µVrms of output voltage noise with V_OUT= 2.8 V

and a 0.01 µF noise reduction (NR) capacitor. Appli-

•

Integrated Supply Voltage Supervisor

Monitors V_OUT2

•

Available in Fixed and Adjustable

Voltage Options (1.2 V to 5.5 V)

•

High PSRR: 65 dB at 10 kHz

UltraLow Noise: 32 µVrms

Fast Start-Up Time: 60 µs

Stable with 2.2 µF Ceramic Capacitor

Excellent Load/Line Transient Response

Very Low Dropout Voltage: 125 mV at 250 mA

Independent Enable Pins

Thermal Shutdown and Independent Current

Limit

•

Available in Thermally-Enhanced SON

Package: 3mm x 3mm x 1mm

cations with analog components

that

are

APPLICATIONS

noise-sensitive, such as portable RF electronics, will

benefit from high PSRR, low noise, and fast line and

load transient features. The TPS713xx family is

offered in a thin 3mm x 3mm SON package and is

fully specified from -40°C to +125°C (T_J).

•

Cellular and Cordless Phones

Wireless PDA/Handheld Products

PCMCIA/Wireless LAN Applications

Digital Camera/Camcorder/Internet Audio

DSP/FPGA/ASIC/Controllers and Processors

PSRR (RIPPLE REJECTION) vs FREQUENCY

I_OUT= 250 mA

DRC PACKAGE

3mm x 3mm SON

(TOP VIEW)

RESET

OUT1

OUT2

GND

10 EN1

I_OUT= 1 mA

EN2

FB2/NC

V_OUT= 2.8 V (adj)

C_OUT= 2.2

C_NR= 0.01

100

10k

100k

10M

Frequency (Hz)

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.

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...19

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与TPS71334相关器件

型号	品牌	获取价格	描述	数据表
TPS71334DRCR	TI	获取价格	Dual 250 mA Output, UltraLow Noise, High PSRR, Low-Dropout Linear Regulator with Integrate
TPS71334DRCRG4	TI	获取价格	Dual 250 mA Output, UltraLow Noise, High PSRR, Low-Dropout Linear Regulator with Integrate
TPS71334DRCT	TI	获取价格	Dual 250 mA Output, UltraLow Noise, High PSRR, Low-Dropout Linear Regulator with Integrate
TPS71334DRCTG4	TI	获取价格	Dual 250 mA Output, UltraLow Noise, High PSRR, Low-Dropout Linear Regulator with Integrate
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TPS7133QD	TI	获取价格	LOW-DROPOUT VOLTAGE REGULATORS
TPS7133QDG4	TI	获取价格	LOW-DROPOUT VOLTAGE REGULATORS
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