lm2593hvsx-adj National Semiconductor Corporation, lm2593hvsx-adj Datasheet - Page 3

• Manufacturer Part Number: lm2593hvsx-adj
• Description: Simple Switcher Power Converter 150 Khz 2a Step-down Voltage Regulator, With Features
• Manufacturer: National Semiconductor Corporation

DEVICE PARAMETERS
I
f
V
DC
I
I
I
I
SHUTDOWN/SOFT-START CONTROL Test Circuit of Figure 1
V
V
I
I
Symbol
b
O
CLIM
L
Q
STBY
SD
SS
Symbol
JC
JA
JA
JA
JA
LM2593HV-ADJ
Electrical Characteristics
SAT
SD
SS
All Output Voltage Versions
Electrical Characteristics
Specifications with standard type face are for T
ture Range. Unless otherwise specified, V
Specifications with standard type face are for T
ture Range.
Efficiency
Feedback Bias Current
Oscillator Frequency
Saturation Voltage
Max Duty Cycle (ON)
Min Duty Cycle (OFF)
Switch current Limit
Output Leakage Current
Operating Quiescent
Current
Standby Quiescent
Current
Thermal Resistance
Shutdown Threshold
Voltage
Soft-start Voltage
Shutdown Current
Soft-start Current
Parameter
Parameter
V
IN
= 12V, V
IN
Adjustable Version Only, V
(Note 7)
I
(Note 9)
(Note 10)
Peak Current, (Note 8) (Note 9)
(Note 8) (Note 10) (Note 11)
SD /SS Pin Open (Note 10)
SD /SS pin = 0V
TO220 or TO263 Package, Junction to Case
TO220 Package, Juncton to Ambient (Note 12)
TO263 Package, Juncton to Ambient (Note 13)
TO263 Package, Juncton to Ambient (Note 14)
TO263 Package, Juncton to Ambient (Note 15)
Low, (Shutdown Mode)
High, (Soft-start Mode)
V
V
V
V
OUT
OUT
(Continued)
OUT
OUT
SHUTDOWN
Soft-start
= 12V for the 3.3V, 5V, and Adjustable version. I
J
J
= 2A (Note 8) (Note 9)
= 3V, I
= 25˚C, and those with boldface type apply over full Operating Tempera-
= 20% of Nominal Output Voltage
= 100% of Nominal Output Voltage
= 25˚C, and those with boldface type apply over full Operating Tempera-
Conditions
= 2.5V
LOAD
= 0.5V
= 2A
Conditions
3
(Note 11)
FB
= 1.3V
Output = 0V
Output = −1V
(Note 4)
Typ
75
LM2593HV-ADJ
LOAD
(Note 4)
1.10
Typ
150
100
LM2593HV-XX
3.0
1.3
1.5
10
90
50
50
30
20
0
5
5
2
2
3
5
= 500 mA
(Note 5)
Limit
(Note 5)
127/110
173/173
200/250
50/100
1.3/1.4
2.4/2.3
3.7/4.0
Limit
0.6
50
30
10
10
2
5
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kHz(max)
nA (max)
kHz(min)
mA(max)
mA(max)
µA(max)
µA(max)
µA(max)
µA(max)
(Limits)
(Limits)
V(max)
A(max)
V(max)
A(min)
V(min)
Units
Units
˚C/W
˚C/W
˚C/W
˚C/W
˚C/W
kHz
mA
mA
nA
µA
µA
µA
%
%
V
A
V
V