RT8205BGQW 데이터 시트보기 (PDF) - Richtek Technology
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RT8205BGQW Datasheet PDF : 28 Pages
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RT8205A/B/C
Marking Information
RT8205AGQW
CJ= : Product Code
CJ=YM
DNN
YMDNN : Date Code
RT8205BGQW
CK= : Product Code
CK=YM
DNN
YMDNN : Date Code
RT8205CGQW
CL= : Product Code
CL=YM
DNN
YMDNN : Date Code
Pin Configurations
(TOP VIEW)
ENTRIP1
FB1
REF
TONSEL
FB2
ENTRIP2
24 23 22 21 20 19
1
18
2
17
3
16
GND
4
15
5
25
14
6
13
7 8 9 10 11 12
NC
VREG5
VIN
GND
SKIPSEL
EN
ENTRIP1
FB1
REF
TONSEL
FB2
ENTRIP2
24 23 22 21 20 19
1
18
2
17
3
16
GND
4
15
5
25
14
6
13
7 8 9 10 11 12
LG1_CP
VREG5
VIN
PGND
SKIPSEL
EN
ENTRIP1
FB1
REF
TONSEL
FB2
ENTRIP2
24 23 22 21 20 19
1
18
2
17
3
16
GND
4
15
5
25
14
6
13
7 8 9 10 11 12
SECFB
VREG5
VIN
PGND
SKIPSEL
EN
RT8205A
WQFN-24L 4x4
RT8205B
WQFN-24L 4x4
RT8205C
WQFN-24L 4x4
Typical Application Circuit
For Fixed Voltage Regulator
C1
10uF
R7
3.9
C6
0.1uF
16 VIN
RT8205A
UGATE2 10
BOOT2 9
R9
0
R8 0
VIN
Q2
BSC119
N03S
C9
10uF
C8
10uF
VOUT1
5V
C3
220uF
L1
6.8uH
R5
C4
Q1
BSC119
N03S
R4 0
R3 0
C2
0.1uF
Q3
BSC119
N03S
C11
0.22uF
Frequency Control
PWM/DEM/Ultrasonic
ON
OFF
21 UGATE1
22 BOOT1
20 PHASE1
19 LGATE1
24 VOUT1
3 REF
4 TONSEL
14 SKIPSEL
13 EN
2 FB1
5 FB2
PHASE2 11
LGATE2 12
VOUT2 7
VREG5 17
PGOOD 23
VREG3 8
ENTRIP1 1
ENTRIP2 6
C7
0.1uF
L2
4.7uH
Q4
BSC119
N03S
R10
C10
VOUT2
3.3V
C13
220uF
C5
4.7uF
C12
4.7uF
R6
100k
R1
150k
5V Always On
PGOOD Indicator
3.3V Always On
R2
150k
GND 15, Exposed Pad (25)
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS8205A/B/C-06 July 2012
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