Datasheet
SLUS317B − JANUARY 2000 − REVISED FEBRUARY 2004
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
†}
VB 13 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VIN 7.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage 1.2 V to 6.0 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature, T
stg
−65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Junction temperature, T
J
−55°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature (soldering, 10 seconds) 300°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
} Currents are positive into, negative out of the specified terminal. Consult Packaging Section of Databook for thermal limitations and
considerations of packages.
AVAILABLE OPTIONS
(1)
PACKAGED DEVICES
T
J
TO-220 (T) TO−263 (TD)
(2)
T
J
OUTPUT VOLTAGE OUTPUT VOLTAGE
1.5 V 2.1 V 2.5 V 1.2 V or ADJ 1.5 V 2.1 V 2.5 V 1.2 V or ADJ
–40°C to 100°C 282T-1 282T-2 282T-3 282T-ADJ 282TD-1 282TD-2 282TD-3 282TD-ADJ
0°C to 100°C 382T-1 382T-2 382T-3 382T-ADJ 382TD-1 382TD-2 382TD-3 382TD-ADJ
1. For more package and ordering information, see the Package Option Addendum located at the end of this data sheet.
2. For 50 piece reel, add KTTT (e.g., UC282TDKTTT−1); for 500 piece reel, add TR (e.g., UC282TDTR−1).
electrical characteristics, T
A
= −40°C to 100°C for the UC282-X series and 0°C to 100°C for the
UC382-X, VB = 5 V, VIN = 3.3 V, VOUT = 2.5 V for the UC382-ADJ, T
A
= T
J
, (unless otherwise stated)
UC382-3 fixed 2.5 V, 3-A family
PARAMETERS TEST CONDITIONS MIN TYP MAX UNITS
Output voltage (I
VOUT
= 100 mA)
UC382-3 2.475 2.500 2.525 V
Output voltage (I
VOUT
= 100 mA)
UC282-3 2.450 2.500 2.525 V
Load regulation I
VOUT
= 10 mA to 3 A 0.5 4 mV
VIN PSSR 80 100 dB
VB PSSR 50 60 dB
I
VOUT
= 3 A, T
J
= 25°C 350 425 mV
VIN dropout voltage = VIN−VOUT
I
VOUT
= 3 A, UC382-3 350 450 mV
VIN dropout voltage = VIN−VOUT
I
VOUT
= 3 A, UC282-3 350 500 mV
VB dropout = VB−VOUT
I
VOUT
= 3 A, UC382-3 1.8 2.10 V
VB dropout = VB−VOUT
I
VOUT
= 3 A, UC282-3 1.8 2.20 V
Short circuit current limit 3.3 4.5 A
VB current
I
VOUT
= 10 mA 6 11 mA
VB current
I
VOUT
= 3 A 18 60 mA
VIN current I
VOUT
= 3 A 2.94 2.97 A