LM22678TJ-ADJ/NOPB National Semiconductor, LM22678TJ-ADJ/NOPB Datasheet - Page 3
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LM22678TJ-ADJ/NOPB
Manufacturer Part Number
LM22678TJ-ADJ/NOPB
Description
IC REG SWITCH BUC 5A ADJ TO263-7
Manufacturer
National Semiconductor
Series
SIMPLE SWITCHER®r
Type
Step-Down (Buck)r
Datasheet
1.LM22678TJE-ADJNOPB.pdf
(16 pages)
Specifications of LM22678TJ-ADJ/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
Adj to 1.285V
Current - Output
5A
Frequency - Switching
500kHz
Voltage - Input
4.5 ~ 42 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-263-7 Thin
No. Of Outputs
1
Output Current
5A
No. Of Pins
7
Operating Temperature Range
-40°C To +125°C
Msl
MSL 1 - Unlimited
Peak Reflow Compatible (260 C)
Yes
Leaded Process Compatible
Yes
Rohs Compliant
Yes
For Use With
551600233-001 - WEBENCH BUILD IT LM2267X TO-263
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Other names
LM22678TJ-ADJ
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LM22678TJ-ADJ/NOPB
Manufacturer:
TI
Quantity:
4 000
Company:
Part Number:
LM22678TJ-ADJ/NOPB
Manufacturer:
Texas Instruments
Quantity:
500
Part Number:
LM22678TJ-ADJ/NOPB
Manufacturer:
TI/德州仪器
Quantity:
20 000
LM22678-5.0
LM22678-ADJ
All Output Voltage Versions
VIN to GND
EN Pin Voltage
SW to GND
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
V
R
T
T
I
OFFMIN
ENHYST
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
(Note
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 Voltage Threshold
Hysteresis
Enable Input Current
Thermal Shutdown
Threshold
Thermal Resistance
2)
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
Falling
EN Input = 0V
Junction to ambient temperature
resistance
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
-0.5V to 6V
-0.5V to 7V
-5V to V
V
SW
1)
(Note
+ 7V
43V
IN
6)
3
Junction Temperature
Soldering Information
ESD Rating
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
(Note
1.266/1.259
4.925/4.9
(Note
6.0/5.75
Min
400
100
1.3
IN
3)
)
5)
(Note
1.285
Typ
500
200
100
230
150
5.0
3.4
7.1
0.2
0.1
0.1
1.6
0.6
25
22
6
(Note
4)
1)
1.304/1.311
5.075/5.1
(Note
8.4/8.75
0.14/0.2
Max
-65°C to +150°C
-40°C to +125°C
600
300
1.9
40
6
2
3
5)
www.national.com
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
V