RT7241A
Features
DDR3/DDR3L/LPDDR3/DDR4 Complete Solution
PWM Converter (VDDQ)
100μA Low Quiescent Supply Current at S3 Mode
ACOTTM Mode Performs Fast Transient Response
Support MLCC Output Capacitors
Integrated Low On-Resistance MOSFETs
17mΩ of High-Side MOSFET
4.5mΩ of Low-Side MOSFET
Adjustable from 0.6V to 1.5V Output Range for
1.5V (DDR3), 1.35V (DDR3L), 1.2V (LPDDR3) and 1.2V
(DDR4)
4.5V to 23V Battery Input Range
500kHz Switching Frequency
Resistor Adjustable Valley Current Limit
Over-/Under-Voltage Protection
Internal Voltage Ramp Soft-Start
Power Good Indicator
1.5A LDO (VTT)
Capable to Sink and Source up to 1.5A
LDO Input Available to Optimize Power Losses
Require Only 10μF Ceramic Output Capacitor
Integrated Divider Tracks 1/2 VDDQ for VTT
Accuracy ±20mV for VTT
Support High-Z in S3 and Soft-Off in S4/S5
Tracking Mode Discharge Control
Thermal Capable Flip-chip (FC) Package for 12A
VDDQ Converter and 1.5A VTT LDO
RoHS Compliant and Halogen Free
Ordering Information
RT7241A
Package Type
QUF : UQFN-18L 3x4 (FC) (U-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
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.
Pin Configurations
(TOP VIEW)
S3
BOOT
PHASE
18 17 16 15 14
13 PGOOD
1
2 12 VIN
3
11 PGND
PHASE 4
10 PGND
5678 9
UQFN-18L 3x4 (FC)
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS7241A-00 January 2016
