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LM2717MT/NOPB Datasheet(PDF) 2 Page - Texas Instruments

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Part # LM2717MT/NOPB
Description  LM2717 Dual Step-Down DC/DC Converter
PDF  17 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM2717MT/NOPB Datasheet(HTML) 2 Page - Texas Instruments

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LM2717
SNVS253D – MAY 2005 – REVISED MARCH 2013
www.ti.com
Connection Diagram
Top View
Figure 1. 24-Lead TSSOP
See Package Number PW0024A
PIN DESCRIPTIONS
Pin
Name
Function
1
PGND
Power ground. PGND and AGND pins must be connected together directly at the part.
2
PGND
Power ground. PGND and AGND pins must be connected together directly at the part.
3
AGND
Analog ground. PGND and AGND pins must be connected together directly at the part.
4
FB1
Fixed buck output voltage feedback input.
5
VC1
Fixed buck compensation network connection. Connected to the output of the voltage error amplifier.
6
VBG
Bandgap connection.
7
VC2
Adjustable buck compensation network connection. Connected to the output of the voltage error
amplifier.
8
FB2
Adjustable buck output voltage feedback input.
9
AGND
Analog ground. PGND and AGND pins must be connected together directly at the part.
10
AGND
Analog ground. PGND and AGND pins must be connected together directly at the part.
11
PGND
Power ground. PGND and AGND pins must be connected together directly at the part.
12
PGND
Power ground. PGND and AGND pins must be connected together directly at the part.
13
SW2
Adjustable buck power switch input. Switch connected between VIN pins and SW2 pin.
14
VIN
Analog power input. VIN pins should be connected together directly at the part.
15
VIN
Analog power input. VIN pins should be connected together directly at the part.
16
CB2
Adjustable buck converter bootstrap capacitor connection.
17
SHDN2
Shutdown pin for adjustable buck converter. Active low.
18
SS2
Adjustable buck soft start pin.
19
FSLCT
Switching frequency select input. Use a resistor to set the frequency anywhere between 300kHz and
600kHz.
20
SS1
Fixed buck soft start pin.
21
SHDN1
Shutdown pin for fixed buck converter. Active low.
22
CB1
Fixed buck converter bootstrap capacitor connection.
23
VIN
Analog power input. VIN pins should be connected together directly at the part.
24
SW1
Fixed buck power switch input. Switch connected between VIN pins and SW1 pin.
2
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Copyright © 2005–2013, Texas Instruments Incorporated
Product Folder Links: LM2717



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