
CM2576
3A S
TEP
D
OWN
V
OLTAGE
R
EGULATOR
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at I
OUT
= 0mA, and T
J
= +25
℃
; unless otherwise noted
2003/08/07
Preliminary
Rev. 1.1
Champion Microelectronic Corporation
Page 3
CM2576
Typ.
3.300
5.000
3.300
5.000
3.300
Parameter
Device
Test Conditions
Min.
3.234
4.900
3.168
4.800
3.135
Max.
3.366
5.100
3.432
5.200
3.482
Unit
CM2576S
CM2576ZJ
CM2576S
CM2576ZJ
CM2576S
V
V
V
V
V
Output Voltage
(Note 1)
Test circuit of Figure 1
6V<=V
IN
<=40V
8V<=V
IN
<=40V
6V<=V
IN
<=40V
Output Voltage
(Note 1)
0.5A<=I
LOAD
<=3A
Output Voltage
(Note 1)
CM2576ZJ
8V<=V
IN
<=40V
0.5A<=I
LOAD
<=3A,
-40
℃
<=T
J
<=125
℃
Test circuit of Figure 1
4.750
5.000
5.250
V
Feedback Voltage
(Note 1)
Feedback Voltage
(Note 1)
Feedback Voltage
(Note 1)
CM2576 (Adj)
Test circuit of Figure 2
V
OUT
=5V
1.217
1.230
1.243
V
CM2576 (Adj)
8V<=V
IN
<=40V, V
OUT
=5V
Test circuit of Figure 2
8V<=V
IN
<=40V, V
OUT
=5V
Test circuit of Figure 2
0.5A<=I
LOAD
<=3A
1.193
1.230
1.267
V
CM2576 (Adj)
0.5A<=I
LOAD
<=3A,
-40
℃
<=T
J
<=125
℃
1.180
1.230
1.286
V
CM2576S
CM2576ZJ
CM2576(adj)
75
77
77
52
52
5
70
1.4
50
98
7
7.2
0.3
9
1.4
1.2
12
0
I
LOAD
=3A
%
Efficiency
I
LOAD
=3A, V
OUT
=5V
%
T
J
=25
℃
47
42
93
4.2
3.5
2.2
2.4
58
63
10
200
1.8
2.0
100
500
8.8
9.0
2
20
1.0
0.8
30
10
Oscillator Frequency
Note 2
-40
℃
<=T
J
<=125
℃
kHz
Quiescent Current
Standby Current
Note 3
mA
μA
ENABLE
= 5V
T
J
=25
℃
Saturation Voltage
I
LOAD
=3A (Note 4)
-40
℃
<=T
J
<=125
℃
T
J
=25
℃
-40
℃
<=T
J
<=125
℃
V
Feedback Bias Current
V
OUT
=5V
(Adj. Version only)
nA
Duty Cycle (ON)
Note 5
%
T
J
=25
℃
Current Limit
Note 2,4
-40
℃
<=T
J
<=125
℃
V
OUT
=0V
V
OUT
=-1V
T
J
=25
℃
-40
℃
<=T
J
<=125
℃
T
J
=25
℃
-40
℃
<=T
J
<=125
℃
A
Output Leakage Current
Note 3
mA
V
IH
(V
OUT
=0V)
V
ENABLE
Threshold Voltage
V
IL
(V
OUT
= Normal Output
Voltage)
V
I
IH
(
ENABLE
= 5V)
I
IH
(
ENABLE
= 0V)
ENABLE
Input Current
μA