LM1575 National Semiconductor, LM1575 Datasheet - Page 5

• Manufacturer Part Number: LM1575
• Description: SIMPLE SWITCHER 1A Step-Down Voltage Regulator
• Manufacturer: National Semiconductor

Symbol
SYSTEM PARAMETERS (Note 4) Test Circuit Figure 2
V
Symbol
Symbol
SYSTEM PARAMETERS (Note 4) Test Circuit Figure 2
V
V
V
SYSTEM PARAMETERS (Note 4) Test Circuit Figure 2
V
V
V
Specifications with standard type face are for T
Range.
OUT
LM1575-12, LM2575-12, LM2575HV-12
Electrical Characteristics
LM1575-15, LM2575-15, LM2575HV-15
Electrical Characteristics
LM1575-ADJ, LM2575-ADJ, LM2575HV-ADJ
Electrical Characteristics
Specifications with standard type face are for T
ture Range .
Specifications with standard type face are for T
ture Range .
OUT
OUT
OUT
OUT
OUT
OUT
Feedback Voltage
Output Voltage
Output Voltage
LM1575/LM2575
Output Voltage
LM2575HV
Efficiency
Output Voltage
Output Voltage
LM1575/LM2575
Output Voltage
LM2575HV
Efficiency
Parameter
Parameter
Parameter
V
V
Circuit of Figure 2
V
Circuit of Figure 2
0.2A
18V
Circuit of Figure 2
0.2A
18V
Circuit of Figure 2
V
IN
OUT
V
Circuit of Figure 2
0.2A
15V
Circuit of Figure 2
0.2A
15V
Circuit of Figure 2
V
IN
IN
IN
IN
= 12V, I
= 30V, I
= 18V, I
= 25V, I
= 15V, I
= 5V
V
V
V
V
I
I
I
I
LOAD
LOAD
IN
IN
Conditions
LOAD
LOAD
IN
IN
Conditions
J
LOAD
J
J
Conditions
= 25˚C, and those with boldface type apply over full Operating Temperature
LOAD
LOAD
40V
60V
= 25˚C, and those with boldface type apply over full Operating Tempera-
LOAD
LOAD
= 25˚C, and those with boldface type apply over full Operating Tempera-
40V
60V
1A,
1A,
1A,
1A,
= 0.2A
= 0.2A
= 1A
= 0.2A
= 1A
5
Typ
15
15
15
88
Typ
12
12
12
88
1.230
Typ
15.525/15.675
14.55/14.40
15.45/15.60
14.55/14.40
LM1575-15
11.64/11.52
12.36/12.48
11.64/11.52
12.42/12.54
LM1575-12
(Note 2)
(Note 2)
14.85
15.15
Limit
11.88
12.12
Limit
LM1575-ADJ
(Note 2)
Limit
1.217
1.243
LM2575HV-12
LM2575HV-15
11.52/11.40
12.48/12.60
11.52/11.40
12.54/12.66
LM2575-12
14.40/14.25
15.60/15.75
14.40/14.25
15.68/15.83
LM2575-15
LM2575HV-ADJ
(Note 3)
(Note 3)
LM2575-ADJ
11.76
12.24
Limit
Limit
14.70
15.30
(Note 3)
Limit
1.217
1.243
www.national.com
(Limits)
(Limits)
V(Max)
V(Max)
V(Max)
V(Max)
V(Max)
V(Max)
V(Min)
V(Min)
V(Min)
V(Min)
V(Min)
V(Min)
Units
Units
(Limits)
V(Max)
V(Min)
%
Units
%
V
V
V
V
V
V
V