LM2596T-12 National Semiconductor, LM2596T-12 Datasheet - Page 4

IC, STEP-DOWN VOLTAGE REGULATOR, TO220-5

LM2596T-12

Manufacturer Part Number
LM2596T-12
Description
IC, STEP-DOWN VOLTAGE REGULATOR, TO220-5
Manufacturer
National Semiconductor
Datasheet

Specifications of LM2596T-12

Input Voltage
40V
Output Current
3A
Output Voltage
12V
No. Of Outputs
1
No. Of Pins
5
Operating Temperature Range
-40°C To +125°C
Termination Type
Through Hole
Filter Terminals
Through Hole
Rohs Compliant
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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DEVICE PARAMETERS
I
V
I
I
I
V
SYSTEM PARAMETERS (Note 5) Test Circuit Figure 1
V
f
DC
I
ON/OFF CONTROL Test Circuit Figure 1
V
b
O
CL
L
Q
STBY
Symbol
JC
JA
JA
JA
JA
SAT
IH
IL
FB
LM2596-ADJ
Electrical Characteristics
Specifications with standard type face are for T
ture Range
All Output Voltage Versions
Electrical Characteristics
Specifications with standard type face are for T
ture Range. Unless otherwise specified, V
sion. I
Symbol
LOAD
Feedback Bias Current
Oscillator Frequency
Saturation Voltage
Current Limit
Output Leakage Current
Quiescent Current
Standby Quiescent Current
Thermal Resistance
ON /OFF Pin Logic Input
Threshold Voltage
Max Duty Cycle (ON)
Min Duty Cycle (OFF)
= 500 mA
Feedback Voltage
Efficiency
Parameter
Parameter
4.5V
V
V
OUT
IN
= 12V, V
programmed for 3V. Circuit of Figure 1
Adjustable Version Only, V
(Note 6)
I
(Note 8)
(Note 9)
Peak Current (Notes 7, 8)
Output = 0V (Notes 7, 9)
Output = −1V (Note 10)
(Note 9)
ON/OFF pin = 5V (OFF)
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)
Low (Regulator ON)
High (Regulator OFF)
OUT
V
IN
IN
= 3A (Notes 7, 8)
= 12V for the 3.3V, 5V, and Adjustable version and V
OUT
40V, 0.2A
J
J
= 25˚C, and those with boldface type apply over full Operating Tempera-
= 25˚C, and those with boldface type apply over full Operating Tempera-
= 3V, I
Conditions
LOAD
I
Conditions
LOAD
4
= 3A
FB
3A
(Note 10)
= 1.3V
(Note 3)
1.230
Typ
73
LM2596-ADJ
(Note 3)
1.16
Typ
150
100
4.5
1.3
10
80
50
50
30
20
0
2
5
2
LM2596-XX
IN
1.193/1.180
1.267/1.280
(Note 4)
= 24V for the 12V ver-
Limit
(Note 4)
127/110
173/173
200/250
50/100
1.4/1.5
3.6/3.4
6.9/7.5
Limit
0.6
2.0
50
30
10
kHz(max)
nA (max)
mA(max)
mA(max)
kHz(min)
µA(max)
µA(max)
(Limits)
(Limits)
V(max)
V(max)
A(max)
V(max)
V(min)
A(min)
V(min)
Units
Units
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
kHz
mA
mA
nA
µA
%
%
V
V
A
V

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