Sharp GX20 Service Manual - Page 147
IC303, IC304 VHITK11129C-1R TK11129CSIL: 2.9 V REGULATOR, Pin No., Terminal name, Input/Output,
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CONFIDENTIAL IC303, IC304 VHITK11129C-1R (TK11129CSIL): 2.9 V REGULATOR Pin No. 1 2 3 4 5 Terminal name CONT GND NP VOUT VIN Input/Output Input - - Output Input Control Ground Capacitor Output Input Description of terminal VIN VOUT 5 4 Control Circuit Constant Current Source Over Heat & Over Current Protection 500 k 1 CONT IC305 VHIEW6671++-1R (EW6671): HALL Pin No. 1 2 3 Terminal name VDD GND OUT Input/Output Input - Output Input Ground Output VDD 1 Pulse Regulator Reg. Bandgap Reference 2 GND 3 NP Description of terminal 3 Amplifier Output stage 3 OUTPUT Hall cell Schmitt trigger & Latch 2 GND 1 2 GX20 6 - 15
GX20
6 – 15
CONFIDENTIAL
IC303, IC304 VHITK11129C-1R (TK11129CSIL): 2.9 V REGULATOR
IC305 VHIEW6671++-1R (EW6671): HALL
Pin No.
Terminal name
Input/Output
Description of terminal
1
CONT
Input
Control
2
GND
–
Ground
3
NP
–
Capacitor
4
VOUT
Output
Output
5
VIN
Input
Input
Pin No.
Terminal name
Input/Output
Description of terminal
1
VDD
Input
Input
2
GND
–
Ground
3
OUT
Output
Output
1
CONT
500 k
VIN
VOUT
Bandgap
Reference
Control
Circuit
Constant
Current
Source
Over Heat &
Over Current
Protection
2
GND
3
NP
5
4
VDD
Reg.
Pulse Regulator
Output
stage
Hall cell
Amplifier
Schmitt trigger
& Latch
OUTPUT
1
GND
2
3
3
1
2