RT9645 View Datasheet(PDF) - Richtek Technology
Part Name
Description
MFG CO.
RT9645 Datasheet PDF : 13 Pages
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RT9645
Typical Application Circuit
Preliminary
VCC5 5VSB VCC12
VCC5/VCC12
VGMCH
VCC3
FSB_VTT
5VSB
3VSB
2
11
BOOT 7
Q3
Q4
Richtek
MOSFET
3 PWM2
ISNS 10
Driver
RT9645
ROCSET2 15
ISNS2
UGATE 8
PHASE 9
5 COMP2
LGATE 12
Q5
6 FB2
18 VTT_DRV
GND 19
17 VTT_SEN
COMP1 13
FB1 14
Q6
1 SB3V_DRV
24 SB3V_SEN VCC_DRV 21
ROCSET1
PWM2-EN
VLDT_EN
S3
4 SS2/EN2 SB5V_DRV 20
16 VTT_EN
23 S3
S5 22
5VDL
Q1
L1
Q2
VCC5
5VDL
5VSB
S5
Figure 1. RT9645 Typical Application for Intel Mode
VCC5 5VSB VCC12
VDDQ
VCC5/VCC12
VGMCH
www.richtek.com
2
VCC3
FSB_VTT
5VSB
3VSB
PWM2-EN
VLDT_EN
S3
2
11
BOOT 7
Q3
Q4
Richtek
MOSFET
3 PWM2
ISNS 10
Driver
RT9645
ROCSET2 15
ISNS2
UGATE 8
PHASE 9
5 COMP2
LGATE 12
6 FB2
Q5
18 VTT_DRV
GND 19
17 VTT_SEN
COMP1 13
FB1 14
Q6
1 SB3V_DRV
24 SB3V_SEN
4 SS2/EN2
VCC_DRV 21
SB5V_DRV 20
16 VTT_EN
23
S3
S5 22
ROCSET1
Q1
L1
Q2
VCC5
5VDL
5VSB
S5
5VDL
VDDQ
5VSB
VDDQ_EN
Figure 2. RT9645 Typical Application for AMD K8
DS9645-00 August 2007
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