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TPS65055 Datasheet(PDF) 8 Page - Texas Instruments

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Part # TPS65055
Description  2.25 MHz Dual Step-Down Converter With 4 Low Input Voltage LDOs
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS65055 Datasheet(HTML) 8 Page - Texas Instruments

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FUNCTIONAL BLOCK DIAGRAM
L2
DEFDCDC2
EN_DCDC1
ENABLE
VCC
VDCDC2
PGND2
EN_LDO1
ENABLE
EN_DCDC2
ENABLE
VLDO2
400mA LDO
VLDO3
200mA LDO
VLDO3
VLDO2
VLDO4
DCDC1(I/O)
STEP-DOWN
CONVERTER
600mA
VINDCDC1/2
L1
VDCDC1
PGND1
DCDC2(core)
STEP-DOWN
CONVERTER
600mA
VLDO1
400mA LDO
VLDO1
VLDO4
200mA LDO
VIN
VIN_LDO1
VIN_LDO3/4
ENABLE
VIN
SCLK
Interface
2.2 H
m
2.2 H
m
10 F
m
10 F
m
4.7 F
m
4.7 F
m
2.2 F
m
2.2 F
m
1 F
m
1R
10 F
m
TPS65055
ENABLE
EN_LDO2
EN_LDO3
ENABLE
EN_LDO4
DEFLDO1
DEFLDO2
0.1 F
m
BP
VIN
VIN_LDO2
Vbat
AGND
RST
I/Ovoltage
R19
1V/1.2V
DPD
R20
I/Ovoltage
SDAT
discharge
THRESHOLD
comparator
TPS65055
SLVS844 – SEPTEMBER 2008.......................................................................................................................................................................................... www.ti.com
8
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Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS65055


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