lm22678tje-adj National Semiconductor Corporation, lm22678tje-adj Datasheet - Page 2

• Manufacturer Part Number: lm22678tje-adj
• Description: 5a Simple Switcher , Step-down Voltage Regulator With Precision Enable
• Manufacturer: National Semiconductor Corporation

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Output Voltage
Connection Diagram
Ordering Information
Pin Descriptions
Pin
1
2
3
4
5
6
7
ADJ
ADJ
5.0
5.0
BOOT
Name
GND
VIN
SW
NC
EN
FB
LM22678TJE-ADJ
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 Pad
7-Lead Plastic TO-263 THIN Package
Package Type
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.
2
NSC Package Drawing
TJ7A
30076102
1000 Units in Tape and Reel
1000 Units in Tape and Reel
250 Units in Tape and Reel
250 Units in Tape and Reel
Supplied As