LM2595-ADJ
Electrical Characteristics
Specifications with standard type face are for T
J
= 25˚C, and those with
boldface type
apply over
full Operating Tempera-
ture Range.
Symbol
Parameter
Conditions
Typ
(Note 3)
SYSTEM PARAMETERS
(Note 5) Test Circuit
Figure 1
V
FB
Feedback Voltage
4.5V
≤
V
IN
≤
40V, 0.1A
≤
I
LOAD
≤
1A
V
OUT
programmed for 3V. Circuit of
Figure 1
η
Efficiency
V
IN
= 12V, V
OUT
= 3V, I
LOAD
= 1A
78
1.230
1.193/1.180
1.267/1.280
V
V(min)
V(max)
%
LM2595-ADJ
Limit
(Note 4)
Units
(Limits)
All Output Voltage Versions
Electrical Characteristics
Specifications with standard type face are for T
J
= 25˚C, and those with
boldface type
apply over
full Operating Tempera-
ture Range.
Unless otherwise specified, V
IN
= 12V for the 3.3V, 5V, and Adjustable version and V
IN
= 24V for the 12V ver-
sion. I
LOAD
= 200 mA.
Symbol
Parameter
Conditions
LM2595-XX
Typ
(Note 3)
DEVICE PARAMETERS
I
b
f
O
Feedback Bias Current
Oscillator Frequency
Adjustable Version Only,V
FB
= 1.3V
(Note 6)
10
50/100
150
127/110
173/173
V
SAT
DC
I
CL
Saturation Voltage
Max Duty Cycle (ON)
Min Duty Cycle (OFF)
Current Limit
I
OUT
= 1A (Notes 7, 8)
(Note 8)
(Note 9)
Peak Current (Notes 7, 8)
1
1.2/1.3
100
0
1.5
1.2/1.15
2.4/2.6
I
L
Output Leakage Current
Output = 0V
(Notes 7, 9) and (Note 10)
Output = −1V
(Note 9)
ON/OFF pin = 5V (OFF)
(Note 10)
50
2
15
I
Q
I
STBY
θ
JC
θ
JA
θ
JA
θ
JA
θ
JA
ON /OFF Pin Logic Input
V
IH
V
IL
Threshold Voltage
Low (Regulator ON)
High (Regulator OFF)
Quiescent Current
Standby Quiescent
Current
Thermal Resistance
TO-220 or TO-263 Package, Junction to Case
TO-220 Package, Junction to Ambient (Note 11)
TO-263 Package, Junction to Ambient (Note 12)
TO-263 Package, Junction to Ambient (Note 13)
TO-263 Package, Junction to Ambient (Note 14)
2
50
50
30
20
1.3
0.6
2.0
5
10
85
200/250
A
A(min)
A(max)
µA(max)
mA
mA(max)
mA
mA(max)
µA
µA(max)
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
V
V(max)
V(min)
nA
nA (max)
kHz
kHz(min)
kHz(max)
V
V(max)
%
Limit
(Note 4)
Units
(Limits)
ON/OFF CONTROL
Test Circuit
Figure 1
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