RT9511 RICHTEK [Richtek Technology Corporation], RT9511 Datasheet - Page 2

• Manufacturer Part Number: RT9511
• Description: Fully Integrated Battery Charger with Two Step-Down Converters
• Manufacturer: RICHTEK [Richtek Technology Corporation]

RT9511
Ordering Information
Note :
Richtek products are :
Typical Application Circuit
www.richtek.com
2
RT9511
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RoHS compliant and compatible with the current require-
Suitable for use in SnPb or Pb-free soldering processes.
ments of IPC/JEDEC J-STD-020.
2.5V to 5.5V
V
OUT1
V
Package Type
QW : WQFN-24L 4x4 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
C
IN
10µF
OUT1
V
V
ACIN
USB
R1
R2
4.7µF
C
IN1
C1
I
R2
1µF
1µF
2.2µH
L1
R
SETA
23
12 ISETU
22
24
19
21
20
11
3
2
4
SYS
AC_ON
CHG_S
ACIN
USB
ISETA
VDD1
EN1
LX1
FB1
RT9511
GND
1, 5, 7, 25 (Exposed Pad)
BAT_ON
Pin Configurations
TIMER
VDD2
BATT
EN2
FB2
LX2
EN
TS
18
17
16
15
14
9
8
10
6
VDD1
2.2µH
C
GND
GND
EN1
L2
FB2
LX1
T
0.1µF
1
2
3
4
5
6
WQFN-24L 4x4
I
24
R4
(TOP VIEW)
7
C2
23
8
C
4.7µF
GND
System
IN2
22
9
R3
R4
Battery Pack
21 20 19
10
25
11
12
DS9511-01 April 2011
10µF
C
18
17
16
15
14
13
OUT2
Chip Enable
V
BAT_ON
BATT
TS
TIMER
EN
NC
2.5V to 5.5V
V
OUT2
IN