RT4730 Datasheet, PDF (1/17 Pages) Richtek Technology Corporation – Power Solution for Wearable AMOLED Products

®
RT4730
Power Solution for Wearable AMOLED Products
General Description
The RT4730 is a highly integrated power solution with
Buck-Boost, and inverting charge pump to generate
positive and negative output voltage. The output voltages
can be adjusted with by SWIRE interface protocols. With
its input voltage range of 2.9V to 4.8V, the RT4730 is
optimized for products powered by single-cell batteries
and symmetrical output currents up to 50mA. The RT4730
is available in the WL-CSP-16B 2.34x2.34 (BSC) package.
Ordering Information
RT4730
Package Type
WSC : WL-CSP-16B 2.34x2.34 (BSC)
Note :
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
 Input Voltage Range : 2.9V to 4.8V
 Positive Output Voltage AVDD : 3.3V
 Positive Output Voltage OVDD Range : 2.8V to 4V
(Default is 3.3V ±1%)
 Negative Output Voltage OVSS Range : −0.6V to
−4V (Default is −3.3V ±1%)
 Excellent Line/Load Regulation
 Excellent Line/Load Transient
 Advanced Power-Save Mode for Light-Load
Efficiency
 Low Output Ripple Voltage
 Built-in Internal Soft-Start
 True Output Load Disconnect From Input
 UVLO, SCP, OCP, OTP, OVP Protection
 Shutdown Current : Typ. 0.1μA
Applications
 Wearable AMOLED Products
Marking Information
0U : Product Code
0U YM
DNN
YMDNN : Date Code
Pin Configuration
(TOP VIEW)
A1
A2
A3
A4
PVIN AVIN AGND C1P
B1
B2
B3
B4
LX1 PGND CPGND C1N
C1
C2
C3
C4
LX2 AVDDEN SWIRE VON
D1
D2
D3
D4
VOUT AVDD OVDD OVSS
WL-CSP-16B 2.34x2.34 (BSC)
Copyright ©2017 Richtek Technology Corporation. All rights reserved.
DS4730-01 March 2017
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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