LM22678TJE-5.0/NOPB National Semiconductor, LM22678TJE-5.0/NOPB Datasheet - Page 2
![IC REG SWITCH BUCK 5A 5V TO263-7](/photos/7/60/76073/tj7a_sml.jpg)
LM22678TJE-5.0/NOPB
Manufacturer Part Number
LM22678TJE-5.0/NOPB
Description
IC REG SWITCH BUCK 5A 5V TO263-7
Manufacturer
National Semiconductor
Series
SIMPLE SWITCHER®r
Type
Step-Down (Buck)r
Datasheet
1.LM22678TJE-ADJNOPB.pdf
(16 pages)
Specifications of LM22678TJE-5.0/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
5V
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
Primary Input Voltage
12V
No. Of Outputs
1
Output Voltage
5V
Output Current
5A
No. Of Pins
7
Operating Temperature Range
-40°C To +125°C
Msl
MSL 1 - Unlimited
Filter Terminals
SMD
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
LM22678TJE-5.0TR
www.national.com
Voltage
Output
Connection Diagram
Ordering Information
*Automotive Grade (Q) product incorporates enhanced manufacturing and support processes for the automotive market, including defect detection methodologies.
Reliability qualification is compliant with the requirements and temperature grades defined in the AEC-Q100 standard. Automotive grade products are identified
with the letter Q. For more information go to http://www.national.com/automotive.
Pin Descriptions
Pin
ADJ
ADJ
ADJ
ADJ
5.0
5.0
5.0
5.0
1
2
3
4
5
6
7
BOOT
Name
GND
VIN
SW
LM22678QTJE-ADJ
NC
EN
FB
LM22678QTJE-5.0
LM22678QTJ-ADJ
LM22678TJE-ADJ
LM22678QTJ-5.0
LM22678TJE-5.0
LM22678TJ-ADJ
LM22678TJ-5.0
Order Number
Source input voltage
Precision enable pin
Bootstrap input
System ground
Not connected
Feedback pin
Description
Switch pin
TO-263 THIN Exposed
TO-263 THIN Exposed
Package Type
7-Lead Plastic TO-263 THIN Package
Pad
Pad
NS Package Number TJ7A
Application Information
Attaches to the switch node.
Input to the regulator. Operates from 4.5V to 42V.
Provides the gate voltage for the high side NFET.
Provide good capacitive decoupling between VIN and this pin.
Pin is not electrically connected inside the chip. Pin does function as thermal
conductor.
Inverting input to the internal voltage error amplifier.
When pulled low regulator turns off.
NSC Package
2
Drawing
TJ7A
TJ7A
1000 Units in Tape and Reel
1000 Units in Tape and Reel
1000 Units in Tape and Reel
1000 Units in Tape and Reel
250 Units in Tape and Reel
250 Units in Tape and Reel
250 Units in Tape and Reel AEC-Q100 Grade
250 Units in Tape and Reel
30076102
Supplied As
Automotive Grade
Production Flow*
1 qualified.
Features