Sharp GX20 Service Manual - Page 148
Ic308, Ic406 Vhitc7sz04a-1l Tc7sz04a: Logic
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GX20 CONFIDENTIAL IC306 VHITK71635S-1R (TK71635S): HIGH SPEED LDO REGULATOR Pin No. 1 2 3 4 5 Terminal name VIN VSS ON/OFF NP VOUT Input/Output - - Input Input Output Power supply Ground ON/OFFcontrol VREF (NP) Output Description of terminal VIN 1 VSS 2 SW Circuit Constant Over Heat & Current Current Protect Source Disconnect Bandgap Circuit Reference 5 VOUT ON/OFF CONTROL 3 750k½ (Top View) 4 NP (VREF) IC308, IC406 VHITC7SZ04A-1L (TC7SZ04A): LOGIC Pin No. 1* 2 3 4 5 Terminal name NC IN GND OUT VCC Input/Output - Input - Output - Not used Input Ground Output Power supply Description of terminal In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside. VCC 5 OUT 4 1 2 3 NC IN GND 6 - 16
GX20
6 – 16
CONFIDENTIAL
IC306 VHITK71635S-1R (TK71635S): HIGH SPEED LDO REGULATOR
IC308, IC406 VHITC7SZ04A-1L (TC7SZ04A): LOGIC
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Pin No.
Terminal name
Input/Output
Description of terminal
1
VIN
–
Power supply
2
VSS
–
Ground
3
ON/OFF
Input
ON/OFFcontrol
4
NP
Input
VREF (NP)
5
VOUT
Output
Output
Pin No.
Terminal name
Input/Output
Description of terminal
1*
NC
–
Not used
2
IN
Input
Input
3
GND
–
Ground
4
OUT
Output
Output
5
VCC
–
Power supply
Disconnect
Circuit
SW Circuit
1
VIN
NP
(VREF)
(Top View)
2
VSS
3
ON/OFF
CONTROL
5 VOUT
4
Bandgap
Reference
Over Heat &
Current Protect
Constant
Current
Source
750k½
1
2
3
5
4
VCC
OUT
NC
GND
IN