TPS7A8001DRBR 低压差稳压器 TI德州仪器

TPS7A8001DRBR 1 Features

1• Low-Dropout 1-A Regulator With Enable

TPS7A8001DRBR  • Adjustable Output Voltages: 0.8 V to 6 V

TPS7A8001DRBR  • Fixed Output Voltages: 0.8 V to 6 V

TPS7A8001DRBR • Wide-Bandwidth High PSRR:

– 63 dB at 1 kHz

– 57 dB at 100 kHz

– 38 dB at 1 MHz

• Low Noise: (14 × VOUT ) μVRMS Typical (100 Hz to

100 kHz)

• Stable with a 4.7-μF Ceramic Capacitor

• Excellent Load/Line Transient Response

• 3% Overall Accuracy (Over Load/Line/Temp)

• Overcurrent and Overtemperature Protection

• Very Low Dropout: 170 mV Typical at 1 A

• 3-mm × 3-mm VSON-8 DRB Package

2 Applications

• Telecom Infrastructure

• Audio

• High-Speed I/F (PLL/VCO)

3 Description

The TPS7A80 family of low-dropout linear regulators

(LDOs) offer very high power-supply ripple rejection

(PSRR) at the output. This LDO family uses an

advanced BiCMOS process and a PMOSFET pass

device to achieve very low noise, excellent transient

response, and excellent PSRR performance.

The TPS7A80 family is stable with a 4.7-μF ceramic

output capacitor, and uses a precision voltage

reference and feedback loop to achieve a worst-case

accuracy of 3% over all load, line, process, and

temperature variations.

This family is fully specified over the temperature

range of TJ = –40°C to +125°C, and is offered in a 3-

mm × 3-mm, VSON-8 package with a thermal pad.

1功能

1•具有Enable的低辍学率1- a调节器

•可调输出电压:0.8 V - 6 V

•固定输出电压:0.8 V至6 V

•宽带高PSRR:

- 63分贝在1千赫

- 57分贝100千赫

- 38分贝在1兆赫

•低噪声:(14×输出电压)μVRMS典型(100赫兹

100千赫)

•稳定4.7 -μf陶瓷电容器

•良好的负载/线路瞬态响应

•3%总精度(过载/线路/温度)

•过流和过温保护

非常低的辍学率:170mv典型的在1a

•3毫米×3毫米VSON-8 DRB包

2应用程序

•电信基础设施

•音频

•高速I/F (PLL/VCO)

3描述

TPS7A80系列低辍学率线性调节器

(LDOs)提供非常高的电源纹波抑制

(PSRR)输出。这个LDO家族使用an

先进的BiCMOS工艺和PMOSFET通过

设备实现噪音极低，瞬态性好

响应，以及出色的PSRR性能。

TPS7A80家庭稳定4.7 -μf陶瓷

输出电容，并采用精密电压

参考和反馈循环以实现最坏情况

在所有负载、线路、过程和

温度变化。

这个家族在温度上是完全指定的

一系列TJ = -40°C + 125°C,并提供3 -

毫米×3毫米,VSON-8包和热垫。