TLV74328PDQNR1集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TLV74328PDQNR1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TLV74328PDQNR1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• Input Voltage Range: 1.4 V to 5.5 V

• Stable Operation With 1-μF Ceramic Output

Capacitor

• Foldback Overcurrent Protection

• Packages:

– SOT-23 (5)

– X2SON (4)

• Very Low Dropout: 125 mV at 300 mA (3.3 VOUT)

• Accuracy: 1% (Typical), 1.4% (Maximum)

• Low IQ: 34 μA

• Available in Fixed-Output Voltages:

1 V to 3.3 V

• High PSRR: 50 dB at 1 kHz

• Active Output Discharge

2 Applications

• Tablets

• Smartphones

• Notebook and Desktop Computers

• Portable Industrial and Consumer Products

• WLAN and Other PC Add-On Cards

• Camera Modules

3 Description

The TLV743P low-dropout linear regulator (LDO) is

an ultra-small, low quiescent current LDO that

sources 300 mA with good line and load transient

performance. The device provides a typical accuracy

of 1%.

The TLV743P is designed to be stable with a small

output capacitor with a value of 1 μF. The TLV743P

device provides foldback current control during device

power up and enabling. This functionality is especially

important in battery-operated devices.

The TLV743P provides an active pulldown circuit to

quickly discharge output loads when the device is

disabled.

The TLV743P is available in standard DBV (SOT-23)

and DQN (X2SON) packages.