TPS715A33DRBT集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TPS715A33DRBT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TPS715A33DRBT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 24 V

• Available output voltage options:

– Fixed: 1.8 V to 5 V

– Adjustable: 1.205 V to 15 V

• Output current: Up to 80 mA

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

• Overcurrent protection

• Package:

– 3-mm × 3-mm VSON (DRB)

– 2-mm × 2-mm WSON (DRV)

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

• 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 TPS715A 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 TPS715A is designed for battery-powered

applications and as a power-management attachment

to low-power microcontrollers.

The TPS715A 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 15 V. The TPS715A LDOs support 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 TPS715A (new chip) also features

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

built-in overcurrent limit helps protect the regulator in

the event of a load short or fault.

The TPS715A is available in a 3-mm × 3-mm package

for use in high power dissipation applications and a

small 2-mm × 2-mm package for hand-held and ultraportable

applications. The 3-mm × 3-mm package is

also available as a non-magnetic package for medical

imaging applications.