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YB1231ST8RX350

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Low-Noise LDO Regulator

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Description

The YB1231 is a series of ultra-low-noise, low dropout (LDO) linear regulators with 2.0 output voltage accuracy. The YB1231 regulators achieve a low 440mV dropout at 600mA load current of 4.5V output and are available in voltages ranging from 3.2V to 4.5V with 0.1 V per step (custom voltage is considerable at request).

The YB1231 regulators are optimized to work with low-ESR and low cost ceramic capacitors, reducing the amount of board space critical in hand-held devices. The YB1231 requires only 2.2 ¦ÌF output capacitor for stability with any load and consumes less than 1¦ÌA in shutdown mode.

Built-in thermal shutdown and short-circuit protect offer secure protection against fault operation. The YB1231 regulators are available in SOT-23 / SOT-25 / SOT-89 packages.

Features

¡ö 2.0 Accuracy Output Voltage

¡ö Output Voltage range 3.2V~4.5V

¡ö Low-Noise Low-Drop-Out

¡ö Stable with 2.2¦ÌF Ceramic Capacitor for Any Load

¡ö Typical Output Current : 600 mA

¡ö Low Quiescent Current : ~100¦ÌA

¡ö 440mV Dropout at 600mA Load (4.5V)

¡ö Only Need Input and Output Capacitors

¡ö Power Saving Shutdown Mode (<1¦ÌA)

¡ö Thermal Protection Shutdown

¡ö Built-In Internal Soft-Start

¡ö Output Short-circuit Current Limit Protection

¡ö Green package (RoHS) available

Applications

¡ö PDA, Palmtops and Notebook Computers

¡ö DSC, Handset Camera Modules

¡ö PCMCIA Cards, PC Cameras

¡ö USB Based Portable Devices (MP3, PMP)

¡ö GSM/GPRS/3G RF Transceiver Modules

¡ö Wireless LANs

¡ö Bluetooth Portable Radios

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    Low-Noise LDO Regulator

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