RT8072
®
DS8072-02 August 2014 www.richtek.com
1
Copyright 2014 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
©
Ordering Information
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.
General Description
The RT8072 is a high efficiency PWM step-down converter
and capable of delivering 5A output current over a wide
input voltage range from 2.9V to 5.5V.
The RT8072 provides accurate regulation for a variety of
loads with an ±1% reference voltage at room temperature.
For reducing inductor size, it provides up to 2MHz
switching frequency. The efficiency is maximized through
the integrated 50mΩ for high side, 35mΩ for low side
MOSFETs and 250μA typical supply current.
The RT8072 features over current protection, frequency
fold back function in shorted circuit, hiccup mode under
voltage protection and over temperature protection.
The RT8072 is available in SOP-8 (Exposed Pad) and
WDFN-12L 3x3 packages.
5A, 2MHz, High Efficiency Synchronous Step-
Down Converter
Features
Integrated 50m
ΩΩ
ΩΩ
Ω and 35m
ΩΩ
ΩΩ
Ω MOSFETs
5A Output Current
High Efficiency Up to 95%
2.9V to 5.5V Input Range
Adjustable PWM Frequency : 300kHz to 2MHz
0.8V
±±
±±
±1% Reference Voltage
Adjustable External Soft-Start
Power Good Indicator (WDFN-12L 3x3 Only)
Over Current Protection
Under Voltage Protection
Over Temperature Protection
SOP-8 (Exposed Pad) and 12-Lead WDFN Packages
RoHS Compliant and Halogen Free
Applications
Low Voltage, High Density Power Systems
Distributed Power Systems
Point-of-Load Conversions
Simplified Application Circuit
Marking Information
RT8072GSP
RT8072GSP : Product Number
YMDNN : Date Code
RT8072GQW
6C= : Product Code
YMDNN : Date Code
RT8072
GSPYMDNN
6C=YM
DNN
VIN
RT8072
LX
BOOT
COMP
V
OUT
RT
EN
L
C
BOOT
C
OUT
R
FB1
R
FB2
C
IN
V
IN
FB
GND
R
T
R
C
C
C
RT8072
Package Type
SP : SOP-8 (Exposed Pad-Option 2)
QW : WDFN-12L 3x3 (W-Type)
(Exposed Pad-Option 1)
Lead Plating System
G : Green (Halogen Free and Pb Free)
