3.0A Low Output Voltage Ultra LDO Regulator
FEATURES
Works with 1.25V ~ 5.5V V
IN
Ultra Low Dropout Voltage
Low Quiescent Current
Excellent Line and Load Regulation
Guaranteed Output Current of 3.0A
Adjustable Output Voltage Down to 0.8V
V
OUT
Power OK Signal
Logic Controlled Shutdown Option
Over-Temperature/Over-Current Protection
-40℃ to 125℃ Junction Temperature Range
TJ47300
SOP‐8‐PP
APPLICATION
Motherboards and Graphic Cards
Microprocessor and Chipset Power Supplies
Peripheral Cards
Low Voltage Digital ICs
High Efficiency Linear Regulators
DESCRIPSION
The TJ47300 is a 3.0A high performance ultra low-
dropout linear regulator ideal for powering core voltages
of low-power microprocessors. The TJ47300 implements
a dual supply configuration allowing for very low output
impedance. The TJ47300 requires a bias input supply
and a main input supply, allowing for ultra-low input
voltages on the main supply rail. The input supply
operates from 1.25V to 5.5V and the bias supply requires
between 3V and 5.5V for proper operation. The TJ47300
delivers high current and ultra-low-dropout output
voltage as low as 0.8V for applications where V
OUT
is very
close to V
IN
. The TJ47300 is developed on a CMOS
technology which allows low quiescent current operation
independent of output current. This technology also
allows the TJ47300 to operate under extremely low
dropout conditions.
ORDERING INFORMATION
Device
TJ47300GDP
Package
SOP8-PP
ABSOLUTE MAXIMUM RATINGS
CHARACTERISTIC
Input Supply Voltage (Survival)
Enable Input Voltage (Survival)
Bias Supply Voltage (Survival)
Output Voltage (Survival)
Lead Temperature (Soldering, 5 sec)
Storage Temperature Range
Operating Junction Temperature Range
Package Thermal Resistance *
SYMBOL
V
IN
V
EN
V
BIAS
V
OUT
T
SOL
T
STG
T
JOPR
Θ
JA-SOP8-PP
MIN.
-0.3
-0.3
-0.3
-0.3
-65
-40
68
MAX.
6
6
6
V
IN
+0.3
260
150
125
UNIT
V
V
V
V
℃
℃
℃
ºC/W
* Calculated from package in still air, mounted to 2.6mm X 3.5mm(minimum foot print) 2 layer PCB without thermal vias per JESD51 standards.
2011 Preliminary
-1-
HTC
HTC [ HTC KOREA TAEJIN TECHNOLOGY CO. ]
