TPS71401DRVT集成電路（IC）的線性+開關穩(wěn)壓器規(guī)格書PDF中文資料

TPS71401DRVT屬于集成電路（IC）的線性+開關穩(wěn)壓器。由德州儀器制造生產的TPS71401DRVT穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉換為熱量。對于大多數(shù)應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。

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.