LM2574HVN15

Manufacturer Part NumberLM2574HVN15
DescriptionDIP8
ManufacturerNational Semiconductor
LM2574HVN15 datasheet
 


Specifications of LM2574HVN15

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LM2574-ADJ, LM2574HV-ADJ
Electrical Characteristics
Specifications with standard type face are for T
ture Range. Unless otherwise specified, V
Symbol
Parameter
SYSTEM PARAMETERS (Note 3) Test Circuit Figure 2
V
Feedback Voltage
7V
V
FB
IN
LM2574
V
Programmed for 5V. Circuit of Figure 2
OUT
V
Feedback Voltage
7V
V
FB
IN
LM2574HV
V
Programmed for 5V. Circuit of Figure 2
OUT
= 12V, V
Efficiency
V
IN
All Output Voltage Versions
Electrical Characteristics
Specifications with standard type face are for T
ture Range. Unless otherwise specified, V
= 30V for the 15V version. I
and V
IN
LOAD
Symbol
Parameter
DEVICE PARAMETERS
I
Feedback Bias
Adjustable Version Only, V
b
Current
f
Oscillator Frequency
(see Note 10)
O
= 0.5A (Note 4)
V
Saturation Voltage
I
SAT
OUT
DC
Max Duty Cycle
(Note 5)
(ON)
I
Current Limit
Peak Current, (Notes 4, 10)
CL
I
Output Leakage
(Notes 6, 7)
L
Current
I
Quiescent Current
(Note 6)
Q
ON /OFF Pin = 5V (OFF)
I
Standby Quiescent
STBY
Current
Thermal Resistance
N Package, Junction to Ambient (Note 8)
JA
N Package, Junction to Ambient (Note 9)
JA
M Package, Junction to Ambient (Note 8)
JA
M Package, Junction to Ambient (Note 9)
JA
(Continued)
= 25˚C, and those with boldface type apply over full Operating Tempera-
J
= 12V, I
= 100 mA.
IN
LOAD
Conditions
40V, 0.1A
I
0.5A
1.230
LOAD
60V, 0.1A
I
0.5A
1.230
LOAD
= 5V, I
= 0.5A
OUT
LOAD
= 25˚C, and those with boldface type apply over full Operating Tempera-
J
= 12V for the 3.3V, 5V, and Adjustable version, V
IN
= 100 mA.
Conditions
= 5V
OUT
Output = 0V
Output = −1V
Output = −1V
5
LM2574-ADJ
Units
(Limits)
LM2574HV-ADJ
Typ
Limit
(Note 2)
V
1.193/1.180
V(Min)
1.267/1.280
V(Max)
1.193/1.180
V(Min)
1.273/1.286
V(Max)
77
%
= 25V for the 12V version,
IN
LM2574-XX
Units
(Limits)
LM2574HV-XX
Typ
Limit
(Note 2)
50
100/500
nA
52
kHz
47/42
kHz(Min)
58/63
kHz(Max)
0.9
V
1.2/1.4
V(max)
%
98
93
%(Min)
1.0
A
0.7/0.65
A(Min)
1.6/1.8
A(Max)
2
mA(Max)
7.5
mA
30
mA(Max)
5
mA
10
mA(Max)
50
µA
200
µA(Max)
92
72
˚C/W
102
78
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