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YB1231ST89X340 Datasheet(PDF) 1 Page - YOBON TECHNOLOGIES,INC. |
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YB1231ST89X340 Datasheet(HTML) 1 Page - YOBON TECHNOLOGIES,INC. |
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1 / 11 page  YB1231 HV600mA, Low-Noise LDO Regulator YB1231 Rev.1.6 www.yobon.com.tw 1 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 2.2μF output capacitor for stability with any load and consumes less than 1μA 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 2.0% Accuracy Output Voltage Output Voltage Range 3.2V ~ 4.5V Low-Noise Low-Drop-Out Stable with 2.2μF Ceramic Capacitor for Any Load Typical Output Current : 600mA Low Quiescent Current : ~100μA 440mV Dropout at 600mA Load (4.5V) Only Need Input and Output Capacitors Power Saving Shutdown Mode (<1μA) Thermal Protection Shutdown Built-In Internal Soft-Start Output Short-circuit Current Limit Protection Green package (RoHS) available Applications PDA, Palmtops and Notebook Computers DSC, Handset Camera Modules PCMCIA Cards, PC Cameras USB Based Portable Devices (MP3, PMP) GSM/GPRS/3G RF Transceiver Modules Wireless LANs Bluetooth Portable Radios Typical Application Circuit Figure 1-1: SOT-25 Application Circuit Figure 1-2: SOT-23/SOT-89 Application Circuit |
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