TPS73250DBVR低压差稳压器 Cap-Free TI原装

1 Features 3 Description

1 The TPS732 family of low-dropout (LDO) voltage • Stable with No Output Capacitor or Any Value or

regulators uses an NMOS pass element in a voltage- Type of Capacitor follower configuration. This topology is stable using

• Input Voltage Range: 1.7 V to 5.5 V output capacitors with low equivalent series

• Ultralow Dropout Voltage: 40 mV Typical at resistance (ESR), and even allows operation without

250 mA a capacitor. The device also provides high reverse

blockage (low reverse current) and ground pin current • Excellent Load Transient Response—With or

Without that is nearly constant over all values of output Optional Output Capacitor current.

• NMOS Topology Provides Low Reverse Leakage

Current The TPS732 uses an advanced BiCMOS process to

yield high precision while delivering very low dropout

• Low Noise: 30 μVRMS Typical (10 kHz to 100 kHz) voltages and low ground pin current. Current

• 0.5% Initial Accuracy consumption, when not enabled, is less than 1 μA

• 1% Overall Accuracy (Line, Load, and and ideal for portable applications. The extremely low

Temperature) output noise (30 μVRMS with 0.1-μF CNR) is ideal for

powering VCOs. These devices are protected by

• Less Than 1-μA Maximum IQ in Shutdown Mode thermal shutdown and foldback current limit.

• Thermal Shutdown and Specified Min and Max

Current Limit Protection Device Information(1)

2 Applications the end of the data sheet.

• Portable and Battery-Powered Equipment

• Post-Regulation for Switching Supplies

• Noise-Sensitive Circuitry such as VCOs

• Point-of-Load Regulation for DSPs, FPGAs,

ASICs, and Microprocessors

TPS73250DBVR TPS73250DBVR TPS73250DBVR TPS73250DBVR

1特征3描述

TPS732系列低电压(LDO)•稳定无输出电容或任何值或

稳压器在电压型电容从动器配置中使用NMOS通道元件。使用这种拓扑是稳定的

•输入电压范围:1.7 V - 5.5 V低等效串联输出电容

•超低电压:典型电阻(ESR)为40mv，甚至可以在无负载情况下工作

250ma一个电容器。该设备还提供高反转

堵塞(低反向电流)和接地销钉电流•良好的负载瞬态响应

如果不这样做，在所有可选输出电容电流的值上几乎都是常数。

•NMOS拓扑提供低反向泄漏

目前，TPS732使用先进的BiCMOS过程

产量高精度，同时交付非常低的辍学率

•低噪声:30μVRMS典型(10千赫至100千赫)电流电压和较低的地面销。当前的

•0.5%的初始精度消费,未启用时,小于1μA

•1%的总体精度(线、负载和便携应用程序的理想精度)。极低的

0.1温度)输出噪声(30μVRMS -μf CNR)是理想的

驱动配装。这些装置受到保护

•不到1-μA最高智商在关闭模式下热停堆和返送电流限制。

•热关闭，并指定最小和最大值

电流限制保护装置信息(1)

应用程序数据表的末尾。

便携式电池供电设备

•开关电源的后监管

•噪音敏感电路，如VCOs

•dsp, FPGAs的负载点调节，

asic和微处理器