RT4723 Datasheet, PDF (1/15 Pages) Richtek Technology Corporation – Built-in Soft-Start

RT4723
Dual Output AMOLED Bias
General Description
The RT4723 is a highly integrated Boost, LDO and
inverting charge pump to generate positive and
negative output voltage. The negative output voltages
can be adjusted from 0.6V to 2.4V with 100mV steps
by SWIRE interface protocol. The part maintains the
highest efficiency by utilizing a 0.33x/0.5x mode
fractional charge pump with automatic mode transition.
With its input voltage range of 2.5V to 4.6V, RT4723 is
optimized for products powered by single-cell battery
and the output current up to 30mA. The RT4723 is
available in WL-CSP-15B 1.39x2.07 (BSC) package to
achieve optimized solution for PCB space.
Ordering Information
RT4723
Package Type
WSC : WL-CSP-15B 1.39x2.07 (BSC)
Note :
Richtek products are :
 RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
 Suitable for use in SnPb or Pb-free soldering
processes.
Features
 2.5V to 4.6V Supply Voltage Range
 Single Wire Protocol
 Fixed 4.6V Positive Voltage Output
 Negative Voltage Output from 0.6V to 2.4V per
0.1V by SWIRE Pin
 Auto-Mode Transition of 0.33x/0.5x Charge
Pump
 Built-in Soft-Start
 30mA Maximum Output Current
 Programmable Output Fast Discharge Function
 High Impedance Output when IC Shutdown
 UVLO, OCP, SCP, OTP Protection
 Shutdown Current < 1A
 Available in 15-Ball WL-CSP Package
Applications
 AMOLED Bias in Portable Device
Marking Information
36W
36 : Product Code
W : Date Code
Simplified Application Circuit
L1
V_IN
C_IN
C_F2
LXP BOOST
VIN
RT4723
VOP
C2P
VON
C2N
SWIRE
GND
C1P
C1N
PGND
C_BOOST
C_OP
C_ON
V_OP
V_ON
C_F1
Copyright © 2016 Richtek Technology Corporation. All rights reserved.
DS4723-00 April 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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