TPS71401DRVR集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TPS71401DRVR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TPS71401DRVR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

• Input voltage range: 2.5 V to 10 V

• Available output voltage options:

– Fixed: 1.8 V to 5 V

– Adjustable: 1.205 V to 8.8 V

• Output current: Up to 80 mA

• Very low IQ: 3.2 μA at 80-mA load current

• Dropout voltage: 415 mV at 50-mA load

• Overcurrent protection

• Operating junction temperature: –40°C to +125°C

• Packages:

– 2-mm × 1.25-mm SC-70 (DCK)

– 2-mm × 2-mm WSON (DRV)

• For MSP430-specific output voltages see the

TPS715

2 Applications

• Home and building automation

• Retail automation and payment

• Grid infrastructure

• Medical applications

• Lighting applications

3 Description

The TPS714 low-dropout (LDO) linear voltage

regulator is a low quiescent current device that

offers the benefits of a wide input voltage range

and low-power operation in miniaturized packaging.

Thus, the TPS714 is designed for battery-powered

applications and as a power-management attachment

to low-power microcontrollers.

The TPS714 is available in both fixed and adjustable

versions. For more flexibility or higher output voltages,

the adjustable version uses external feedback

resistors to set the output voltage from 1.205 V to

8.8 V. The TPS714 LDO supports a low dropout of

650 mV (typ) at 80 mA of load current. The low

quiescent current (3.2 μA typically) is stable over

the entire range of output load current (0 mA to 80

mA). The TPS714 (new chip only) also features an

internal soft-start to lower the inrush current. The builtin

overcurrent limit helps protect the regulator in the

event of a load short or fault.

The TPS714 is available in a 2-mm × 2-mm package

for use in high power dissipation applications and the

SC70-5 package is designed for hand-held and ultraportable

applications.