RT9912A Datasheet, PDF (1/14 Pages) Richtek Technology Corporation – Multi-Channel Power Management IC for Portable Device

RT9912A
Multi-Channel Power Management IC for Portable Device
General Description
The RT9912A is a multi-channel power management IC
providing power conversion and system power manage-
ment functions for one or two alkaline battery powered
portable handheld device.
The RT9912A integrates one high efficiency synchronous
buck regulator, one high efficiency boost regulator, one
linear regulator and one adjustable voltage detector for
reset function.
Ordering Information
RT9912A
Package Type
QW : WQFN-24L 4x4 (W-Type)
Note :
Lead Plating System
G : Green (Halogen Free and Pb Free)
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Features
z 300mA Sync. Step Down Converter for V_CORE
z 300mA Sync. Step Up Converter for IO and Memory
z High Efficiency Up to 92%
z Low Dropout Linear Regulator
z Adjustable Voltage Detector for Reset Function
z Current Limit Protection
z Thermal Shutdown Protection
z Low Operation Current Consumption
z Small 24-Lead WQFN Package
z RoHS Compliant and Halogen Free
Applications
z DSC
z Portable Multimedia Player
z GPS
Pin Configurations
(TOP VIEW)
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
VDD1
FB1
ENSW
PSW
NC
ENBST
24 23 22 21 20 19
1
18 FB4
2
17 VDD4
3
16 _RESET
GND
4
15 ENBUK
5
14 VDD3
6
25 _{13 FB3}
7 8 9 10 11 12
WQFN-24L 4x4
DS9912A-01 April 2011
www.richtek.com
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