3.0A Ultra Low Dropout Linear Regulator
FEATURES
Ultra Low Dropout Voltage
Low Ground Pin Current
Excellent Line and Load Regulation
Guaranteed Output Current of 3.0A
Available in SOP8-PP, TO-252, TO-263, and TO-220
Packages
Fixed Output Voltages : 1.2V, 1.8V, 2.5V, 3.3V, and 5.0V
SENSE Option Improves Load Regulation
Over-Temperature/Over-Current Protection
-40℃ to 125℃ Junction Temperature Range
Moisture Sensitivity Level 3
SOP8-PP PKG
TJ3966
TO-252 3L/ 5L PKG
TO-263 3L/ 5L PKG
APPLICATION
Battery Powered Equipments
Motherboards and Graphic Cards
Microprocessor Power Supplies
Peripheral Cards
High Efficiency Linear Regulators
Battery Chargers
TO-220 3L/ 5L PKG
DESCRIPSION
The TJ3966 series of high performance ultra low-dropout
linear regulators operates from 2.5V to 6V input supply
and provides ultra low-dropout voltage, high output
current with low ground current. Wide range of preset
output voltage options are available. These ultra low
dropout linear regulators respond fast to step changes in
load which makes them suitable for low voltage micro-
processor applications. The TJ3966 is developed on a
CMOS process technology which allows low quiescent
current operation independent of output load current. This
CMOS process also allows the TJ3966 to operate under
extremely low dropout conditions.
ORDERING INFORMATION
Device
TJ3966DP-ADJ
TJ3966DP-X.X
TJ3966GRS-ADJ
TJ3966GRS-X.X
TJ3966GR-ADJ
TJ3966GR-X.X
TJ3966T-ADJ
TJ3966T-X.X
Package
SOP8-PP
TO-252 3L/5L
TO-263 3L/5L
TO-220 3L/5L
X.X = Output Voltage = 1.2, 1.8, 2.5, 3.3, and 5.0
Absolute Maximum Ratings
CHARACTERISTIC
Input Supply Voltage (Survival)
Enable Input Voltage (Survival)
Maximum Output Current
Lead Temperature (Soldering, 5 sec)
Storage Temperature Range
Operating Junction Temperature Range
(1) It is recommended for V
EN
not to exceed V
IN
Voltage
Aug. 2010 - Rev. 1.7.1
-
1
SYMBOL
V
IN
V
EN (1)
I
MAX
T
SOL
T
STG
T
JOPR
MIN.
-0.3
-0.3
-
-65
-40
MAX.
7.0
7.0
3.0
260
150
125
UNIT
V
V
A
℃
℃
℃
-
HTC
3.0A Ultra Low Dropout Linear Regulator
TYPICAL APPLICATION
Typical 3 Pin Application
INPUT
C
IN
68μF
+
-
V
IN
TJ3966
GND
V
OUT
TJ3966
OUTPUT
+
C
OUT
-
33μF
Typical 5 / 8 Pin Application
V
IN
+
-
EN
EN
GND
TJ3966
SENSE
V
OUT
OUTPUT
INPUT
C
IN
68μF
+
C
OUT
-
33μF
5 / 8 Pin Remote Load Sense Application
INPUT
+
-
EN
EN
GND
V
IN
TJ3966
SENSE
V
OUT
OUTPUT
C
IN
68μF
+
C
OUT
-
33μF
L
O
A
D
Typical Adjustable Version Application
INPUT
C
IN
68μF
+
-
EN
EN
GND
R
1
V
IN
TJ3966
ADJ
V
OUT
R
2
OUTPUT
+
C
OUT
-
33μF
* TJ3966 can deliver a continuous current of 3.0A over the full operating temperature. However, the output
current is limited by the restriction of power dissipation which differs from packages. A heat sink may be
required depending on the maximum power dissipation and maximum ambient temperature of application.
With respect to the applied package, the maximum output current of 3.0A may be still undeliverable.
* When a Pull-Up resistor is connected between V
EN
terminal and V
EN
Signal (or V
IN
line), the resistance
of the Pull-Up resistor should be kept under 10kΩ.
* See Application Information
Aug. 2010 - Rev. 1.7.1
-
5
-
HTC
Embedded System
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