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34704 Datasheet(PDF) 3 Page - Freescale Semiconductor, Inc

Part # 34704
Description  Multiple Channel DC-DC Power Management IC
PDF  54 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

34704 Datasheet(HTML) 3 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
3
34704
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
OUT8
SW8
BT8
FB8
OUT7
DRV7
FB7
VREF7
COMP7
VOUT6
SW6
BT6
FB6
BT5D
PVIN5
SW5D
VOUT5
SW5U
BT5U
FB5
COMP5
VDDI
SCL
SDA
RST
VIN
AGND
VG
BT1
BT2D
PVIN2
SW2D
VOUT2
SW2U
BT2U
FB2
COMP2
BT3
PVIN3
SW3
VOUT3
BT4D
PVIN4
SW4D
VOUT4
SW4U
BT4U
FB4
COMP4
ONOFF
LION
FREQ
SS
PGND (EXPAD)
VG
Control
VOUT1 (34704A)
SW1
PWM
Error Amp
REG8
voltage data
VG
Control
PWM
P-skip
Error Amp
REG4
voltage data
VG
Control
PWM
P-skip
Error Amp
REG3
voltage data
VG
FB3
VG
Control
PWM
P-skip
Error Amp
REG2
voltage data
VG
UVLO
Detection
Thermal
Detection
ADC
Startup Control
VIN
VG
Control
PWM
P-skip
Error Amp
Start-Up
Ipeak-det
and blanking
SW control
REG1/VG
voltage data
L
Error Amp
Control
PWM
Error Amp
voltage data
REG7 (34704A)
Amp
VG
Control
PWM
Error Amp
REG6 (34704A)
voltage data
L
Error Amp
VG
Control
PWM
P-skip
Error Amp
REG5
voltage data
VG
VDDI (2.5V) VDDIMON (VDDIdet)
VG
I2C
Registers
Reset Driver
Sequencer
Soft Start
OSC/Divider
To Reg 1-8
Figure 2. 34704 Internal Block Diagram



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