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