TPS71550DCKRG4集成电路（IC）的线性+开关稳压器规格书PDF中文资料

1 Features

• Input voltage range: 2.5 V to 24 V (30 V max)

• Very low IQ: 3.2 μA at 50-mA load current

• Output current: Up to 50 mA

• Stable with output capacitor ≥ 0.47 μF

• Available output voltage options:

– Fixed: 1.8 V, 1.9 V, 2.3 V, 2.5 V, 3 V,

3.3 V, 3.45 V, 5 V

– Adjustable: 1.2 V to 15 V

• Overcurrent protection

• Package: 5-pin SC70 (DCK)

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

• For an 80-mA rated current and higher power

package, see the TPS715A

Applications

• Home and building automation

• Retail automation and payment

• Grid infrastructure

• Medical applications

• Lighting applications

2 Description

The TPS715 low-dropout (LDO) linear voltage

regulators are low quiescent current devices that

offer the benefits of a wide input voltage range and

low-power operation in miniaturized packaging. The

low dropout voltage and low quiescent current of

the TPS715 allows operation at extremely low power

levels. Thus, the TPS715 is designed for batterypowered

applications and as a power-management

attachment to low-power microcontrollers.

The TPS715 is available in both fixed and adjustable

versions. For more flexibility or higher output voltages,

the adjustable version uses feedback resistors to set

the output voltage from 1.205 V to 15 V. The TPS715

LDOs support a low dropout of typically 415 mV at

50 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 50 mA). The TPS715

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.