RT8205A Datasheet, PDF (4/28 Pages) Richtek Technology Corporation – High Efficiency, Main Power Supply Controllers for Notebook Computers

RT8205A/B/C
For Adjustable Voltage Regulator
V_OUT1
5V
C3
220uF
C14
C15
0.1uF
C1
10uF
R7
3.9
C6
0.1uF
L1
6.8uH
R5
C4
Q1
BSC119
N03S
R4 0
R3 0
C2
0.1uF
Q3
BSC119
N03S
R11
15k
R12
10k
C11
0.22uF
Frequency Control
PWM/DEM/Ultrasonic
ON
OFF
V_IN
16 _VIN
RT8205A
UGATE2 ¹⁰
BOOT2 ⁹
R9
0
R8 0
Q2
BSC119
N03S
C9
10uF
C8
10uF
21 _UGATE1
22 _BOOT1
20 _PHASE1
19 _LGATE1
24 _VOUT1
2 _FB1
3 _REF
4 _TONSEL
14 _SKIPSEL
13 _EN
PHASE2 ¹¹
LGATE2 ¹²
C7
0.1uF
L2
4.7uH
Q4
BSC119
N03S
R10
C10
V_OUT2
3.3V
C13
220uF
VOUT2 ⁷
FB2 ⁵
ENTRIP1 ¹
ENTRIP2 ⁶
R1
150k
R2
150k
GND ^{15, Exposed Pad (25)}
R13
6.5k
R14
10k
C17
C16
0.1uF
VREG5 ¹⁷
PGOOD ²³
VREG3 ⁸
C5
4.7uF
C12
4.7uF
R6
100k
5V Always On
PGOOD Indicator
3.3V Always On
C1
10uF
R7
3.9
C10
0.1uF
16 _VIN
RT8205B
UGATE2 ¹⁰
BOOT2 ⁹
R9
0
R8 0
V_IN
Q2
BSC119
N03S
C13
10uF
C12
10uF
V_OUT1
5V
C3
220uF
L1
6.8uH
R5
C4
Q1
BSC119
N03S
R4 0
R3 0
C2
0.1uF
Q3
BSC119
N03S
21 _UGATE1
22 _BOOT1
20 _PHASE1
19 _LGATE1
C18 _R11
15k
C19
0.1uF
R12
10k
C6
0.1uF
D1
C5
0.1uF
D2
D3
C7
0.1uF
D4
24 _VOUT1
2 _FB1
18 _{LG1_CP}
3 _REF
C15
0.22uF
C8
0.1uF
BAT254
CP
ON
OFF
Frequency Control
PWM/DEM/Ultrasonic
13 _EN
4 _TONSEL
14 _SKIPSEL
PHASE2 ¹¹
LGATE2 ¹²
VOUT2 ⁷
C7
0.1uF
L2
4.7uH
Q4
BSC119
N03S
R10
C14
FB2 ⁵
ENTRIP1 ¹
ENTRIP2 ⁶
Exposed Pad (25)
GND
R1
150k
R2
150k
V_OUT2
3.3V
C17
220uF
R13
6.5k
R14
10k
C21
C20
0.1uF
VREG5 ¹⁷
PGOOD ²³
VREG3 ⁸
15
PGND
C9
4.7uF
C16
4.7uF
R6
100k
5V Always On
PGOOD Indicator
3.3V Always On
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
www.richtek.com
4
is a registered trademark of Richtek Technology Corporation.
DS8205A/B/C-06 July 2012