LXXLD30 Datasheet, PDF (1/7 Pages) Unisonic Technologies – 0.8V REFERENCE ULTRA LOW DROPOUT LINEAR REGULATOR

UNISONIC TECHNOLOGIES CO., LTD
LXXLD30
Preliminary
0.8V REFERENCE ULTRA LOW
DROPOUT LINEAR REGULATOR
„ DESCRIPTION
The UTC LXXLD30 is a typical LDO with the features of very low
dropout voltage as low as 0.2V at output current 3A.
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 LXXLD30, 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 LXXLD30 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 V_TT (1.2V/3A) and
note book PC applications.
„ FEATURES
* Low Dropout V_D=0.25V(typ.)@ I_OUT=3A
* Low ESR Output Capacitor
* V_REF=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 V_CNTL and V_IN
* 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
Lead Free
Halogen Free
LXXLD30L-SH2-R
LXXLD30G-SH2-R
xx: Output Voltage, refer to Marking Information.
Package
HSOP-8
CMOS IC
HSOP-8
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
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