Datasheet
SLUS215B − OCTOBER 1998 − REVISED FEBRUARY 2004
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics T
A
= 0°C to 70°C for the UCC383−x series, T
A
= −40°C to 85°C for the
UCC283−x, V
VIN
= V
VOUT
+ 1.5 V, I
OUT
= 10 mA, C
IN
= 10 mF, C
OUT
= 22 mF. For the UCC283−ADJ, V
VIN
= 6.5 V, V
OUT
= 5.0 V, C
T
= 750 pF, T
J
= T
A
unless otherwise stated
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
UCC283−5 Fixed 5 V, 3 A Family
Output voltage
T
J
= 25°C 4.925 5 5.075 V
Output voltage
Over temperature 4.875 5.125 V
Line regulation V
VIN
= 5.15 V to 9 V 2 10 mV
Load regulation I
OUT
= 10 mA to 3 A 10 20 mV
I
OUT
= 3 A, V
OUT
= 4.85 V 0.4 0.6 V
Dropout voltage, V
DROPOUT
= V
VIN
− V
VOUT
I
OUT
= 1.5 A, V
OUT
= 4.85 V 0.2 0.45 V
Dropout voltage, V
DROPOUT
= V
VIN
− V
VOUT
I
OUT
= 10 mA, V
OUT
= 4.85 V 50 150 mV
Peak current limit V
VOUT
= 0 V 4 7 10 A
Overcurrent threshold 3 4 5.5 A
Current limit duty cycle V
VOUT
= 0 V 3% 5%
Overcurrent time out, t
ON
V
VOUT
= 0 V 400 750 1400 µs
Quiescent current No load 400 650 µA
Reverse leakage current
1 V < V
VIN
< V
VOUT
,
V
VOUT
≤ 5.1 V, at V
VOUT
30 75 µA
Undervoltage lockout VIN where VOUT passes current 2.5 2.8 3 V
UCC283−3 Fixed 3.3 V, 3 A Family
Output voltage
T
J
= 25°C 3.25 3.3 3.35 V
Output voltage
Over temperature 3.22 3.38 V
Line regulation voltage V
VIN
= 3.45 V to 9 V 2 7 mV
Load regulation voltage I
OUT
= 10 mA to 3 A 7 15 mV
I
OUT
= 3A, VOUT = 3.15 V 0.5 1 V
Dropout voltage, V
DROPOUT
= V
VIN
− V
VOUT
I
OUT
= 1.5A, VOUT = 3.15 V 0.25 0.6 V
Dropout voltage, V
DROPOUT
= V
VIN
− V
VOUT
I
OUT
= 10mA, VOUT = 3.15 V 50 150 mV
Peak current limit V
VOUT
= 0 V 4 7 10 A
Overcurrent threshold 3 4 5.5 A
Current limit duty cycle V
VOUT
= 0 V 3% 5%
Overcurrent time out, t
ON
V
VOUT
= 0 V 400 750 1400 µs
Quiescent current No load 400 650 µA
Reverse leakage current
1 V < V
VIN
< V
VOUT
,
V
VOUT
≤ 3.35 V at V
VOUT
30 75 µA
Undervoltage lockout VIN where VOUT passes current 2.5 2.8 3 V