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TPS51225C Datasheet(PDF) 7 Page - Texas Instruments

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No. de pieza TPS51225C
Descripción Electrónicos  Dual Synchronous, Step-Down Controller with 5-V and 3.3-V LDOs
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS51225C Datasheet(HTML) 7 Page - Texas Instruments

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TPS51225
Thermal Pad
TPS51225B
TPS51225C
CS1
VFB1
VREG3
VFB2
CS2
DRVL2
VIN
VREG5
VO1
DRVL1
TPS51225, TPS51225B, TPS51225C
www.ti.com
SLUSAV0A – JANUARY 2012 – REVISED JUNE 2012
DEVICE INFORMATION
RUK PACKAGE
20 PINS
(TOP VIEW)
PIN FUNCTIONS
PIN NO.
TPS51225
NAME
I/O
DESCRIPTION
TPS51225B
TPS51225C
CS1
1
O
Sets the channel 1 OCL trip level.
CS2
5
O
Sets the channel 2OCL trip level.
DRVH1
16
O
High-side driver output
DRVH2
10
O
High-side driver output
DRVL1
15
O
Low-side driver output
DRVL2
11
O
Low-side driver output
EN1
20
I
Channel 1 enable.
EN2
6
I
Channel 2 enable.
PGOOD
7
O
Power good output flag. Open drain output. Pull up to external rail via a resistor
SW1
18
O
Switch-node connection.
SW2
8
O
Switch-node connection.
VBST1
17
I
Supply input for high-side MOSFET (bootstrap terminal). Connect capacitor from this pin to SW
terminal.
VBST2
9
I
VCLK
19
O
Clock output for charge pump.
VFB1
2
I
Voltage feedback Input
VFB2
4
I
Power conversion voltage input. Apply the same voltage as drain voltage of high-side MOSFETs of
VIN
12
I
channel 1 and channel 2.
VO1
14
I
Output voltage input, 5-V input for switch-over.
VREG3
3
O
3.3-V LDO output.
VREG5
13
O
5-V LDO output.
Thermal
GND terminal, solder to the ground plane
pad
Copyright © 2012, Texas Instruments Incorporated
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Product Folder Link(s) :TPS51225 TPS51225B TPS51225C


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