LADLD30 Datasheet, PDF (1/8 Pages) Unisonic Technologies – 0.8V REFERENCE ULTRA LOW DROPOUT LINEAR REGULATOR

UNISONIC TECHNOLOGIES CO., LTD
LADLD30
Preliminary
0.8V REFERENCE ULTRA LOW
DROPOUT LINEAR REGULATOR
„ DESCRIPTION
The UTC LADLD30 is a typical LDO with the features of very low
dropout voltage as low as 0.25V at output current 3A.
For normal operation, tow 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 LADLD30, 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 tow 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 LADLD30 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
LADLD30L-SH2-R
LADLD30G-SH2-R
xx: Output Voltage, refer to Marking Information.
Package
HSOP-8
CMOS IC
HSOP-8
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
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