RT9986 RICHTEK [Richtek Technology Corporation], RT9986 Datasheet - Page 3

• Manufacturer Part Number: RT9986
• Description: 7-CH DC/DC Converter for DSC
• Manufacturer: RICHTEK [Richtek Technology Corporation]

DS9986-00 May 2011
Typical Application Circuit
For 2AA
-7V
15V
C18
10µF x 2
RTCPWR
C13
10µF x 2
3.3V
V
V
5V
BAT
BAT
1nF
C15
0.1µF
C16
R15
100k
R9
287k
R10
26.1k
C14
4.7µF
OFF
10.5k
R11
66.5k
R12
D5
D1
C17
0.1µF
ON
C1
1µF
C2
4.7µF
10µH
L5
C12
27pF
10µH
R14
10k
L6
21
29
20
19
18
28
13
25 EN1234
32
12
17
23
4 VOUT6
3
2
7
5
8
6 PVDD7
VDDM
BAT
LX5
PVDD5
FB5
LX6
FB6
VREF
VNEG
LX7
FB7
EN7
EN56
VCHK
RST
SYSR
RT9986
RTCPWR
PVDD1
PVDD2 27
PVDD3 15
PVDD4
GND
FB1
FB2
FB3
FB4 11
LX1 31
LX2 26
LX3 16
LX4 9
30
1
24
14
10
22
33 (Exposed Pad)
2.2µH
2.2µH
2.2µH
2.2µH
L1
L2
L3
L4
C21
4.7pF
C22
4.7pF
768k
360k
R5
R6
R7
470k
R8
374k
C3
4.7µF
C5
4.7µF
470k
470k
150k
C7
4.7µF
C9
10µF
88.7k
R3
R4
R1
R2
C8
10µF
C10
10µF
C11
Super Cap
V
10µF x 2
C4
10µF x 2
BAT
C6
RT9986
www.richtek.com
5V
3.3V
V
5V
2.5V
5V or V
1.8V
BAT
BAT
3