Datasheet

Exposed Pad
Connect to GND
5 IADJ
6 FB
3 BOOT
1 SW
2 VIN
4 GND
7 SS
LM22679-ADJ
VIN
SS
SW
BOOT
FB
GND
VIN
VOUT
IADJ
LM22679/LM22679Q
SNVS581K –FEBRUARY 2013–REVISED NOVEMBER 2012 www.ti.com
Simplified Application Schematic
Connection Diagram
Figure 1. Connection Diagram
Package Number NDR0007A
PIN DESCRIPTIONS
Pin Name Description Application Information
1 SW Switch Output Switching output of regulator.
2 VIN Input Voltage Supply input to regulator.
3 BOOT Bootstrap input Provides the gate voltage for the high side NFET
4 GND Ground input to
regulator; system System ground pin.
common
5 IADJ Current limit adjust input A resistor attached between this pin and GND can be used to set the current limit threshold.
pin Pin can be left floating and internal setting will be default.
6 FB Feedback Input Feedback input to regulator.
7 SS Soft-start pin Used to increase soft-start time. See Soft-Start.
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.
2 Submit Documentation Feedback Copyright © 2013–2012, Texas Instruments Incorporated
Product Folder Links: LM22679/LM22679Q