RT8167A View Datasheet(PDF) - Richtek Technology
Part Name
Description
Manufacturer
RT8167A Datasheet PDF : 40 Pages
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RT8167A
Typical Application Circuit
5V
VCCP
VCLK
VDIO
ALERT
VRA_READY
VR_READY
VRHOT
VCC
DRPENA
DRPEN
OCSETA
OCSET
SETINIA
SETINI
VCC
TMPMAX
ICCMAX
ICCMAXA
OFSA
OFS
GFXPS2
VCC
R1 VCC
2.2
C1
1µF
12 VCC
RT8167A
TONSET 48
BOOT 47
UGATE 46
R2
130k
R4
0
R3
5.1
C2
0.1µF
Q1
VIN
5V to 25V
C4
10µF
R6 R7 R8 R9 R10 R11
130 130 150 10k 10k 75
R5
0
PHASE 45
C3
0.1µF
Optional
R12
Q2
29 VCLK
28 VDIO
27 ALERT
25
24
VRA_READY
VR_READY
23 VRHOT
LGATE 44
PVCC 43
ISEN1P 1
0
5V
C8
1µF
R13
C7
R14 3.9k
R16
C5
2.4k
Optional
0.068µF
R15
L1
1µH
DCR 7.6m
RNTC1
4.7k
C25
ISEN1N 2
4.7k
VCORE
C26
330µF
/9m
C6
330µF
/9m
R17 R18 R19 R20 R21 R22
10k 10k 27k 8.7k 10k 10k
26 DRPENA
8 DRPEN
21 OCSETA
19 OCSET
13
14
SETINIA
SETINI
R28 R29 R30 R31 R32 R33
NC NC 10k 10k NC NC
IMONFB 7
4
FB
3
COMP
RGND 5
6
IMON
C9
Optional R23
10k
Optional Optional
C11
C12
R24
0
C10
Optional
R25 R26 R27
71k
10k
100
IMON
R34
C13 R35
100
0.1µF 620k
CORE VCC_ SENSE
VCORE
CORE VSS_SENSE
R37 R38 R39 R40 R41 R42
51k 150k 100k NC NC NC
R47 R48 R49 R50 R51 R52
33k 5.1k 1.6k 0 0 10k
TONSETA
37 R43
15 TMPMAX
16
17
ICCMAX
ICCMAXA
10
9
11
OFSA
OFS
GFXPS2
R45
BOTTA 39 0
UGATEA 40
R46
0
PHASEA 41
LGATEA 42 R53
0
ISENAP 36
R36
39k
R44
C14
0.1µF
VIN
5V to 25
Q3
C15
0.1µF
Q4
C16
10µF
Optional
R54
C17
R55 11k
L2
2µH
DCR 14.6m
RNTCA
1k
VGFX
C27
330µF
/15m
C19
330µF
/15m
R58
12k
RNTC
10k
T1
R59
12k
ß = 3380
R72
R71
750
750
RNTCTA
10k
ß = 3380
20 TSENA
18 TSEN
22 IBIAS
ISENAN 35
IMONFBA 30
FBA 33
C18
0.1µF
C20
Optional
R57
1.2k
R56
1k
R60
10k
Optional Optional
C22
C23
R61
0
C21
Optional
R62
R63 R64
1k
1k 53.6k
34
COMPA
R65 R66
R67
RGNDA 32
42k
10k
100
GFX VCC_SENSE
VGFX
GFX VSS_SENSE
EN 38 EN
31
IMONA
IMONA
R68
GND
C24 R69
100
49 (Exposed Pad)
0.1µF 180k
R70
1.8M
Figure 1. Dual Output Application Circuit
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS8167A-00 January 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
5
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