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LXXLD70L-SH2-R Datasheet(PDF) 1 Page - Unisonic Technologies |
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LXXLD70L-SH2-R Datasheet(HTML) 1 Page - Unisonic Technologies |
1 / 8 page UNISONIC TECHNOLOGIES CO., LTD LXXLD70 Preliminary CMOS IC www.unisonic.com.tw 1 of 8 Copyright © 2011 Unisonic Technologies Co., Ltd QW-R502-674.a 0.8V REFERENCE ULTRA LOW DROPOUT LINEAR REGULATOR DESCRIPTION The UTC LXXLD70 is a typical LDO with the features of very low dropout voltage as low as 0.15V at output current 7.0A. For normal operation, two supply voltages are necessary. One called control voltage from other equipment can shutdown the output voltage and it should pull and hold the voltage of EN pin less than 0.3V. Another one is the main supply voltage whose purpose is for main power conversion, to keep the power dissipation low, and to make the dropout voltage lower. Internally, in the UTC LXXLD70, there’re many functions which can be seen in the block figure to prevent the IC from being damaged. Internal Power-On-Reset (POR) circuit can control the two supply voltages to prevent fault operations of the circuit; the thermal shutdown circuit is able to protect the device from over thermal operation, and a current limit function will keep the device work safely under current over-loads. The UTC LXXLD70 can be used as an ideal to provide well supply voltage in the applications, such as front-side-bus termination on motherboard, NB applications, front side bus VTT (1.2V/7.0A) and note book PC applications. HSOP-8 FEATURES * Low Dropout VD= 0.15V (typ.) @ IOUT=7.0A * Low ESR Output Capacitor * VREF=0.8V * ±1.5% over Line, Load and Temperature Output Accuracy * Fast Transient Response * Output Voltage Adjustable through External Resistors * POR (Power-On-Reset) controlling VCNTL and VIN * With internal Soft-Start * Internal Current Limit Protection * Internal Under Voltage Protection * Hysteretic Thermal Shutdown * With Power-OK Output (with a Delay Time) * For Standby or Suspend Mode: Shutdown ORDERING INFORMATION Ordering Number Package Packing Lead Free Halogen Free LXXLD70L-SH2-R LXXLD70G-SH2-R HSOP-8 Tape Reel LXXLD70L-SH2-T LXXLD70G-SH2-T HSOP-8 Tube Note: XX: Output Voltage, refer to Marking Information. |
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