3.0 AMP LOW DROPOUT
POSITIVE VOLTAGE REGULATORS
November 22, 1999
EZ1587
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, Adj V
IN
= 2.75 to 7.0V and ADJ I
O
= 10mA to 3.0A;
Fixed (V
OUT
+1.5) to 7.0V and Fixed I
O
= 0mA to 3.0A
Test Conditions
Parameter
Output Voltage
(1)
Test Limits
T
J
(5)
Symbol
V
O
(1)
V
IN
5V
I
O
10mA
Min
0.99|V
O
|
0.98|V
O
|
1.238
1.225
Typ
V
O
V
O
1.250
1.250
0.005
0.035
Max
1.01|V
O
|
1.02|V
O
|
1.262
1.275
0.2
0.2
Units
V
25°C
O.T.
Fixed Voltage Version
Reference Voltage
(1)
V
REF
REG
(LINE)
5V
10mA
25°C
O.T.
25°C
V
Adj Voltage Version
Line Regulation
%
Fixed Voltage Version
Adj Voltage Version
Load Regulation
(1)
0mA
10mA
REG
(LOAD)
V
D
I
CL
I
Q
T
C
I
ADJ
5V
5V
O.T.
25°C
O.T.
0.05
0.2
1
1.1
3.1
4.5
10
0.004
55
0.3
0.4
%
Dropout Voltage
EZ1587
Current Limit
(2)
25°C
O.T.
O.T.
O.T.
O.T.
25°C
O.T.
V
1.3
A
13
0.02
mA
%/°C
µA
90
Quiescent Current
Fixed Voltage Version
Temperature Coefficient
Adjust Pin Current
Adjust Pin Current
Change
Temperature Stability
Minimum Load Current
Adj Voltage Version
RMS Output Noise
(3)
(4)
∆I
ADJ
T
S
I
O
V
N
R
A
5V
3.0A
5V
5V
0.5A
O.T.
O.T.
O.T.
25°C
O.T.
60
0.2
0.5
5
0.003
72
5
µA
%
10
mA
%V
O
dB
Ripple Rejection Ratio
NOTES:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2)
∆V
OUT
,
∆V
REF
= 1%
(3) Bandwidth of 10 Hz to 10 kHz.
(4) 120 Hz input ripple, (C
ADJ
for ADJ = 25µF).
(5) Over Temp. (O.T.) = over specified operating junction temperature range.
2
© 1999 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
SEMTECH [ SEMTECH CORPORATION ]
