Datasheet

Exposed Pad
Connect to GND
NC
3
FB
4
BOOT
1
NC
2
8
SW
7
VIN
6
GND
5
EN
LM22675
SNVS591K –SEPTEMBER 2008–REVISED MARCH 2013 www.ti.com
Connection Diagram
Figure 1. 8-Lead SO PowerPAD-8 Package
See Package Number DDA0008B
PIN DESCRIPTIONS
Pin No. Name Description Application Information
1 BOOT Bootstrap input Provides the gate voltage for the high side NFET.
2, 3 NC Not Connected Pins are not electrically connected inside the chip. Pins do function as
thermal conductor.
4 FB Feedback pin Feedback input to regulator.
5 EN Enable Input Used to control regulator start-up and shutdown. See Precision Enable
section of data sheet.
6 GND Ground input to regulator; System ground pin.
system common
7 VIN Input Voltage Input supply to regulator
8 SW Switch pin Switching output of regulator
EP EP Exposed Pad Connect to ground. Provides thermal connection to PCB. See Application
Information.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
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