
2
UC182-1,-2,-3,-ADJ
UC282-1,-2,-3,-ADJ
UC382-1,-2,-3,-ADJ
ABSOLUTE MAXIMUM RATINGS
VB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13V
VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.5V
Output Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . +1.2V to 6.0V
Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature. . . . . . . . . . . . . . . . . . . –55°C to +150°C
Lead Temperature (Soldering, 10 sec.). . . . . . . . . . . . . +300°C
Currents are positive into, negative out of the specified termi-
nal. Consult Packaging Section of Databook for thermal limita-
tions and considerations of packages.
CONNECTION DIAGRAMS
5-Pin TO-220 (Top View)
T Package
5-Pin TO-263 (Top View)
TD Package
ORDERING INFORMATION
Temperature Range
1: –55°C to +125°C
2: –25
°
C to +100
°
C
3: 0
°
C to +100
°
C
Package
T: TO-220
TD: TO-263
Output Voltage
1: 1.5V
2: 2.1V
3: 2.5V
ADJ: 1.2V or Adjustable
Note: Tab tied to Pin 3.
Note: Tab tied to Pin 3.
ELECTRICAL CHARACTERISTICS:
Unless otherwise stated, these parameters apply for T
A
= –55
°
C to 125°C for the
UC182-X series, –25°C to +100°C for the UC282-X series and 0°C to +100°C for the UC382-X, VB = 5V; VIN = 3.3V, VOUT =
2.5V for the UC382-ADJ, T
A
= T
J
.
PARAMETERS
TEST CONDITIONS
UC382-3 Fixed 2.5V, 3A Family
Output Voltage (I
VOUT
= 100mA)
UC382-3
UC282-3 and UC182-3
Load Regulation
I
VOUT
= 10mA to 3A
VIN PSSR
VB PSSR
VIN Dropout Voltage = VIN–VOUT
I
VOUT
= 3A, T
J
= 25°C
I
VOUT
= 3A, UC382-3
I
VOUT
= 3A, UC282-3 and UC182-3
VB Dropout = VB–VOUT
I
VOUT
= 3A, UC382-3
I
VOUT
= 3A, UC282-3
I
VOUT
= 3A, UC182-3
Short Circuit Current Limit
VB Current
I
VOUT
= 10mA
I
VOUT
= 3A
VIN Current
I
VOUT
= 3A
UC382-2 Fixed 2.1V, 3A Family
Output Voltage (I
VOUT
= 100mA)
UC382-2
UC282-2 and UC182-2
Load Regulation
I
VOUT
= 10mA to 3A
VIN PSSR
MIN
TYP
MAX
UNITS
2.475
2.450
2.500
2.500
0.5
100
60
350
350
350
1.8
1.8
1.8
2.525
2.525
4
V
V
mV
dB
dB
mV
mV
mV
V
V
V
A
mA
mA
A
80
50
425
450
500
2.10
2.20
2.35
4.5
9
60
3.3
6
18
2.97
2.94
2.079
2.058
2.100
2.100
0.5
100
2.121
2.121
4
V
V
mV
dB
80