Datasheet > EUP7903-28VIR1

EUP7903-28VIR1

更新时间： 2022-12-19 10:34:13

品牌	Logo	应用领域
德信 - EUTECH		稳压器
页数	文件大小	规格书
10页	299K
描述
300mA High PSRR LDO Regulators

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EUP7903-28VIR1 数据手册

EUP7903

300mA High PSRR LDO Regulators

FEATURES

DESCRIPTION

The EUP7903 is a high current, low-dropout (LDO) linear

regulator with fast transient response and high PSRR. It

offers high output accuracy, extremely low dropout voltage,

low quiescent current and fast start-up time.

The EUP7903 is designed to work with low-ESR ceramic

capacitors, reducing the amount of the PCB area necessary

for power applications. Only a 1uF ceramic output capacitor

can make the device stable over the whole load range.

EUP7903 can be externally set either fixed output mode or

adjustable output mode. Connect FB pin to GND to select

the fixed output mode. Its output is one of pre-set values:

1.25V~5V (50mV per step). Operated in the adjustable mode

when the FB pin is connected to an external resistors divider,

its output can be adjusted from 1.25V to 5V. Other key

features include over-current protection, thermal shutdown.

The device is available in the small SOT23-5 package.

2.5V to 5.5V Input Voltage Range

180mV@300mA Dropout Voltage

Excellent Transient Response

Stable with 1uF Ceramic Output Capacitor

70dB PSRR at 1kHz

Low 90µA Quiescent Current

Low Shutdown Current：<1µA

Output Current Limit

Short Circuit Protection

Output Voltage With High Accuracy:

2% Initial Accuracy

Fixed Output Voltage：1.25V~5V (0.05V step)

Adjustable Output Voltage: 1.25V~5V

Thermal Shutdown

Output Auto-Discharge in Shutdown

RoHS Compliant and 100% Lead (Fb)-Free

APPLICATIONS

Cellular Phones

Bluetooth portable radios and Accessories

Battery-Powered Equipment

Laptop, Palmtops, Notebook Computer

PDAs

Digital still Camera and Video Recorders

Typical Application Circuit

Figure. 1 Adjustable Output

DS7903 Ver 1.0 Nov. 2008

12 3 4 5 6 7...10

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