TLV71729PDQNT集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TLV71729PDQNT属于集成电路（IC）的线性+开关稳压器。由德州仪器制造生产的TLV71729PDQNT稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。

1 Features

1• Very Low Dropout: 215 mV at 150 mA

• Accuracy: 0.5% (typical)

• Low IQ: 35 μA

• Available in Fixed-Output Voltages:

1.2 V to 5 V

• High PSRR:

– 70 dB at 1 kHz

– 50 dB at 1 MHz

• Stable With Effective Output Capacitance:

0.1 μF

• Foldback Current Limit

• Package: 1-mm × 1-mm DQN

(1) See the Package Option Addendum at the end of this

document for a complete list of available voltage options.

(2) See Input and Output Capacitor Requirements for more

details.

2 Applications

• PCs and Notebooks

• Smart Phones

• Portable Electronics and Battery-Powered Devices

• Electronic Point of Sale

3 Description

The TLV717P series of low-dropout (LDO) linear

regulators are low quiescent current LDOs with

excellent line and load transient performance and are

designed for power-sensitive applications. These

devices provide a typical accuracy of 0.5%.

The TLV717P series offer current foldback that

throttles down the output current with a decrease in

load resistance. The typical value at which current

foldback initiates is 350 mA; the typical value of the

output short current limit value is 40 mA.

Furthermore, these devices are stable with an

effective output capacitance of only 0.1 μF. This

feature enables the use of cost-effective capacitors

that have higher bias voltages and temperature

derating. The devices regulate to specified accuracy

with no output load.

The TLV717P series is available in a 1-mm × 1-mm

DQN package that makes them ideal for hand-held

applications. The TLV717P provides an active

pulldown circuit to quickly discharge output loads.