2.0A Low Output Voltage Ultra LDO Regulator
TJ2132
FEATURES
Works with 1.1V ~ 5.5V VIN
Ultra Low Dropout Voltage
Low Quiescent Current
SOP8-PP
Excellent Line and Load Regulation
Guaranteed Output Current of 2.0A
Adjustable Output Voltage Down to 0.6V
VOUT Power OK Signal
Programmable Soft-Start
Logic Controlled Shutdown Option
Over-Temperature/Over-Current Protection
-40℃ to 125℃ Junction Temperature Range
DFN 3x3-8L
APPLICATION
Motherboards and Graphic Cards
Microprocessor and Chipset Power Supplies
Peripheral Cards
Low Voltage Digital ICs
High Efficiency Linear Regulators
SMPS Post Regulators
DESCRIPSION
The TJ2132 is a 2.0A high performance ultra low-dropout
ORDERING INFORMATION
linear regulator ideal for powering core voltages of low-
power microprocessors. The TJ2132 implements a dual
supply configuration allowing for very low output
impedance. The TJ2132 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 1.1V
to 5.5V and the bias supply requires between 2.7V and 5.5V
for proper operation. The Soft-Start reduces inrush current
of the load capacitors and minimizes stress on the input
power source during start-up. The TJ2132 delivers high
current and ultra-low-dropout output voltage as low as 0.6V
for applications where VOUT is very close to VIN. The TJ2132
is developed on a CMOS technology which allows low
quiescent current operation independent of output current.
This technology also allows the TJ2132 to operate under
extremely low dropout conditions.
Device
Package
SOP8-PP
TJ2132GDP
DFN 3x3-8L
TJ2132GQ
OPERATING RATINGS
CHARACTERISTIC
SYMBOL
MIN.
MAX.
UNIT
Recommend Operating Input Voltage
Recommend Operating Bias Voltage
Enable Input Voltage
VIN
VBIAS
1.1
VOUT+2.1
0
5.5
5.5
5.5
125
V
V
VEN
V
℃
Operating Junction Temperature Range
Package Thermal Resistance*
* Calculated from package in sill air, mounted to 2.6mm X 3.5mm(minimum foot print) 2 layer PCB without thermal vias per JESD51 standards.
TJOPR
-40
℃/W
ƟJA-SOP8-PP
68
Aug. 2014 – Rev.1.1.3
1
HTC