TPS79325DBVR 低压差稳压器 TI原装

1 Features TPS79325DBVR

1• 200-mA RF Low-Dropout Regulator

With Enable TPS79325DBVR

• Available in Fixed-Voltage Versions from 1.8 V to

4.75 V and Adjustable (1.22 V to 5.5 V) TPS79325DBVR

• High PSRR (70 dB at 10 kHz) TPS79325DBVR

• Low Noise (32 μVRMS, TPS79328)

• Fast Start-Up Time (50 μs)

• Stable With a 2.2-μF Ceramic Capacitor

• Excellent Load and Line Transient Response

• Very Low Dropout Voltage (112 mV at 200 mA,

TPS79330)

• 5- and 6-Pin SOT23 (DBV) and NanoStar Wafer

Chip Scale (YZQ) Packages

2 Applications

• RF: VCOs, Receivers, ADCs

• Audio

• Cellular and Cordless Telephones

• Bluetooth®

, Wireless LAN

• Handheld Organizers, PDAs

3 Description

The TPS793 family of low-dropout (LDO) low-power

linear voltage regulators features high power-supply

rejection ratio (PSRR), ultralow-noise, fast start-up,

and excellent line and load transient responses in

NanoStar™ wafer chip scale and SOT23 packages.

NanoStar packaging gives an ultrasmall footprint as

well as an ultralow profile and package weight,

making these devices ideal for portable applications

such as handsets and PDAs. Each device in the

family is stable, with a small, 2.2-μF ceramic

capacitor on the output. The TPS793 family uses an

advanced, proprietary BiCMOS fabrication process to

yield extremely low dropout voltages (for example,

112 mV at 200 mA, TPS79330). Each device

achieves fast start-up times (approximately 50 μs with

a 0.001-μF bypass capacitor) while consuming very

low quiescent current (170 μA typical).

1功能

1•200毫安射频低辍学率调节器

与使

•可提供1.8 V至1.8 V的固定电压版本

4.75 V可调(1.22 V至5.5 V)

•高PSRR(10千赫70分贝)

•低噪声(32μVRMS TPS79328)

•快速启动时间(50μs)

•稳定2.2 -μf陶瓷电容器

•良好的负载和线路瞬态响应

·极低电压(200毫安时112 mV，

TPS79330)

•5- 6引脚SOT23 (DBV)和NanoStar Wafer

芯片秤(YZQ)包

2应用程序

•RF: VCOs, receiver, adc

•音频

•手机和无绳电话

•蓝牙®

、无线局域网

•手持组织者，pda

3描述

TPS793系列低辍学率(LDO)低功率

线性稳压器的特点是高电源

抑制比(PSRR)，超低噪音，快速启动，

并具有良好的线路和负载瞬态响应

NanoStar™晶圆芯片规模和SOT23包。

NanoStar包装提供了一个超细的足迹as

以及一个超低剖面和包装重量，

使这些设备成为便携式应用程序的理想设备

比如手机和pda。在

家庭是稳定的,小,2.2 -μf陶瓷

电容器对输出。TPS793家庭使用的是a

先进、专有的BiCMOS制造工艺

产生极低的电压(例如，

112mv, 200ma, TPS79330)。每一个设备

达到快速启动时间(大约50μs

0.001 -μf旁路电容器),而消费非常

低静态电流(170μA典型)。