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LM22673 数据表(PDF) 3 Page - Texas Instruments

部件名 LM22673
功能描述  LM22673/-Q1 42 V, 3 A SIMPLE SWITCHER짰, Step-Down Voltage Regulator with Features
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LM22673 数据表(HTML) 3 Page - Texas Instruments

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Exposed Pad
Connect to GND
5 IADJ
6 FB
3 BOOT
1 SW
2 VIN
4 GND
7 SS
Exposed Pad
Connect to GND
IADJ
3
FB
4
BOOT
1
NC
2
8
SW
7
VIN
6
GND
5
SS
LM22673, LM22673-Q1
www.ti.com
SNVS586O – SEPTEMBER 2008 – REVISED NOVEMBER 2014
5 Pin Configuration and Functions
8-Pin
HSOP
Top View
7-Pin
PFM
Top View
Pin Functions
PIN
TYPE
DESCRIPTION
APPLICATION INFORMATION
SO
NAME
PFM
PowerPAD
BOOT
1
3
I
Bootstrap input
Provides the gate voltage for the high side NFET.
Pin is not electrically connected inside the chip.
NC
2
Not Connected
Pin does function as thermal conductor.
A resistor attached between this pin and GND can
IADJ
3
5
I
Current limit adjust input pin
be used to set the current limit threshold. Pin can
be left floating and internal setting will be default.
FB
4
6
I
Feedback input
Feedback input to regulator.
Used to increase soft-start time. See Soft-Start
SS
5
7
Soft-Start pin
section of data sheet.
Ground input to regulator;
GND
6
4
System ground pin.
system common
VIN
7
2
I
Input voltage
Supply input to the regulator.
SW
8
1
O
Switch output
Switching output of regulator.
Connect to ground. Provides thermal connection
EP
EP
EP
Exposed Pad
to PCB. See Thermal Considerations.
Copyright © 2008–2014, Texas Instruments Incorporated
Submit Documentation Feedback
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Product Folder Links: LM22673 LM22673-Q1


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