lm22674mrx-adj National Semiconductor Corporation, lm22674mrx-adj Datasheet - Page 3

• Manufacturer Part Number: lm22674mrx-adj
• Description: 500 Ma Simple Switcher , Step-down Voltage Regulator With Precision Enable
• Manufacturer: National Semiconductor Corporation

LM22674-5.0
LM22674-ADJ
All Output Voltage Versions
VIN to GND
EN Pin Voltage
SW to GND (Note 2)
BOOT Pin Voltage
FB Pin Voltage
Power Dissipation
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
junction temperature (T
correlation. Typical values represent the most likely parametric norm at T
only. Unless otherwise specified: V
Symbol
R
T
T
I
OFFMIN
STDBY
I
DS(ON)
ONMIN
V
V
V
T
BIAS
θ
I
I
I
f
CL
I
EN
SD
FB
FB
Q
O
EN
JA
L
Parameter
Feedback Voltage
Feedback Voltage
Quiescent Current
Standby Quiescent Current
Current Limit
Output Leakage Current
Switch On-Resistance
Oscillator Frequency
Minimum Off-time
Minimum On-time
Feedback Bias Current
Enable Threshold Voltage
Enable Input Current
Thermal Shutdown
Threshold
Thermal Resistance
J
) range of -40°C to +125°C. Minimum and Maximum limits are guaranteed through test, design, or statistical
IN
= 12V.
Conditions
V
V
V
EN Pin = 0V
V
V
V
EN Input = 0V
MR package, Junction to ambient
temperature resistance (Note 6)
Internally Limited
IN
IN
FB
IN
SW
FB
Limits in standard type are for T
= 8V to 42V
= 4.7V to 42V
= 42V, EN Pin = 0V, V
= 5V
= 1.3V (ADJ Version Only)
= -1V
(Note 1)
-0.5V to 6V
-0.5V to 7V
-5V to V
V
SW
+ 7V
43V
IN
3
Junction Temperature
Soldering Information
ESD Rating (Note 3)
Storage Temperature Range
Supply Voltage (V
Junction Temperature Range
Operating Ratings
SW
Infrared (5 sec.)
Human Body Model
= 0V
A
= T
J
J
= 25°C only; limits in boldface type apply over the
= 25°C, and are provided for reference purposes
1.266/1.259
4.925/4.9
0.56/0.62
(Note 5)
Min
400
1.3
IN
)
(Note 4)
1.285
Typ
500
300
100
230
150
5.0
3.4
0.7
0.2
0.1
0.2
1.6
25
60
6
(Note 1)
1.304/1.311
5.075/5.1
0.24/0.32
(Note 5)
0.84/0.9
Max
-65°C to +150°C
-40°C to +125°C
600
1.9
40
6
2
3
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4.5V to 42V
150°C
260°C
±2 kV
Units
°C/W
kHz
mA
µA
µA
µA
nA
µA
°C
ns
ns
Ω
V
V
A
V