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LM1575-ADJ, LM2575-ADJ, LM2575HV-ADJ
Electrical Characteristics
Specifications with standard type face are for T
Range.
Symbol
Parameter
SYSTEM PARAMETERS (Note 4) Test Circuit Figure 2
V
Feedback Voltage
OUT
V
Feedback Voltage
OUT
LM1575/LM2575
V
Feedback Voltage
OUT
LM2575HV
η
Efficiency
All Output Voltage Versions
Electrical Characteristics
Specifications with standard type face are for T
ture Range. Unless otherwise specified, V
and V
= 30V for the 15V version. I
IN
Symbol
Parameter
DEVICE PARAMETERS
I
Feedback Bias Current
b
f
Oscillator Frequency
O
V
Saturation Voltage
SAT
DC
Max Duty Cycle (ON)
I
Current Limit
CL
I
Output Leakage
L
Current
I
Quiescent Current
Q
I
Standby Quiescent
STBY
Current
= 25˚C, and those with boldface type apply over full Operating Temperature
J
Conditions
V
= 12V, I
= 0.2A
IN
LOAD
V
= 5V
OUT
Circuit of Figure 2
0.2A ≤ I
≤ 1A,
LOAD
8V ≤ V
≤ 40V
IN
V
= 5V, Circuit of Figure 2
OUT
0.2A ≤ I
≤ 1A,
LOAD
8V ≤ V
≤ 60V
IN
V
= 5V, Circuit of Figure 2
OUT
V
= 12V, I
= 1A, V
IN
LOAD
OUT
= 25˚C, and those with boldface type apply over full Operating Tempera-
J
= 12V for the 3.3V, 5V, and Adjustable version, V
IN
= 200 mA.
LOAD
Conditions
V
= 5V (Adjustable Version Only)
OUT
(Note 13)
I
= 1A (Note 5)
OUT
(Note 6)
Peak Current (Notes 5, 13)
(Notes 7, 8)
Output = 0V
Output = −1V
Output = −1V
(Note 7)
ON /OFF Pin = 5V (OFF)
Typ
LM1575-ADJ
Limit
(Note 2)
1.230
1.217
1.243
1.230
1.205/1.193
1.255/1.267
1.230
1.205/1.193
1.261/1.273
= 5V
77
Typ
LM1575-XX
(Note 2)
50
100/500
52
47/43
58/62
0.9
1.2/1.4
98
2.2
1.7/1.3
3.0/3.2
7.5
5
10/12
50
200/500
7
LM2575-ADJ
LM2575HV-ADJ
Limit
(Note 3)
1.217
1.243
1.193/1.180
1.267/1.280
1.193/1.180
1.273/1.286
= 25V for the 12V version,
IN
LM2575-XX
LM2575HV-XX
Limit
Limit
(Note 3)
100/500
47/42
58/63
1.2/1.4
93
93
1.7/1.3
3.0/3.2
2
2
30
30
10
200
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Units
(Limits)
V
V(Min)
V(Max)
V
V(Min)
V(Max)
V
V(Min)
V(Max)
%
Units
(Limits)
nA
kHz
kHz(Min)
kHz(Max)
V
V(Max)
%
%(Min)
A
A(Min)
A(Max)
mA(Max)
mA
mA(Max)
mA
mA(Max)
µA
µA(Max)
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