YB1253 データシートの表示（PDF） - YOBON TECHNOLOGIES,INC.

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YB1253

300mA, Low Power, High PSRR LDO Regulator

YOBON TECHNOLOGIES,INC. 

YB1253

300mA, Low Power, High PSRR LDO Regulator

Description

The YB1253 is a series of ultra-low-noise,

high PSRR, and low quiescent current low

dropout (LDO) linear regulators with 2.0%

output voltage accuracy. The YB1253

regulators achieve a low 300mA dropout at

300mA load current of 3.6V output and are

available in voltages ranging from 1.2V to

3.6V with 0.1 V per step (custom voltage is

considerate at request).

The YB1253 regulators are optimized to

work with low-ESR and low cost ceramic

capacitors, reducing the amount of board

space critical in portable devices. The

YB1253 requires only 1.0μF output

capacitor for stability with any load and

consumes less than 1μA in shutdown

mode.

Built-in thermal shutdown and short-circuit

current limit offer secure protection against

fault operation. YB1253 regulators also

include an auto-discharge function. The

YB1253 regulators are available in SOT-23

/ SOT-25 / SOT-89 packages.

Features

• High Accuracy Output Voltage : + 2%

• Wide Output Voltage Range : 1.2~3.6V

• Ultra-Low-Noise Low-Drop-Out

• Typical Output Current : 300 mA

• Low Quiescent Current: ~10μA

• 300mV Dropout at 300mA 3.6V Output

• Stable with 1.0μF Ceramic Capacitor

• Only Need Input and Output Capacitors

• Thermal Protection Shutdown

• Auto discharge function

• Green Package (RoHS) Available

Applications

• PDA, Notebook, PC Computers

• DSC, Cellular phones

• PCMCIA Cards, PC Cameras

• USB Based Portable Devices

• GSM/GPRS/3G RF Transceiver

• Wireless LANs

• Bluetooth Portable Radios

• Battery-Powered Devices

Typical Application Circuitry

Input

VIN VOUT

Output

Cin=1uF

ON

OFF

YB1253

EN

GND

Cout=1uF

Figure 1-1 : SOT-25 application circuit

Input

Cin=1uF

VIN VOUT

Output

YB1253 Cout=1uF

GND

Figure 1-2 : SOT-23 application circuit

YB1253 Rev. 1.5

www.yobon.com.tw

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