RT5712A
2A, 1MHz, 6V CMCOT Synchronous Step-Down Converter
General Description
The RT5712A is a high efficiency synchronous
step-down DC-DC converter. Its input voltage range is
from 2.7V to 6V and provides an adjustable regulated
output voltage from 0.6V to 3.4V while delivering up to
2A of output current.
The internal synchronous low on-resistance power
switches increase efficiency and eliminate the need for
an external Schottky diode. The Current Mode
Constant-On-time (CMCOT) operation with internal
compensation allows the transient response to be
optimized over a wide range of loads and output
capacitors.
Features
Efficiency Up to 95%
R
DSON
100m HS / 70m LS
V
IN
Range 2.7V to 6V
V
REF
0.6V with
1.5%
Accuracy
CMCOT
™
Control Loop Design
for
Best
Transient Response, Robust Loop Stability with
Low-ESR (MLCC) C
OUT
Fixed Soft-Start 1.2ms
Cycle-by-Cycle Over-Current Protection
Input Under-Voltage Lockout
Output Under-Voltage Protection (UVP Hiccup)
Thermal Shutdown Protection
Power Saving at Light Load
Applications
STB, Cable Modem, & xDSL Platforms
LCD TV Power Supply & Metering Platforms
General Purpose Point of Load (POL)
Marking Information
RT5712AHGQW
3M : Product Code
W : Date Code
3MW
Ordering Information
RT5712A
Package Type
QW : WDFN-6L 2x2 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
UVP Option
H : Hiccup
L : Latch-Off
Note :
Richtek products are :
RT5712ALGQW
3L : Product Code
W : Date Code
3LW
Pin Configuration
(TOP VIEW)
GND
NC
EN
VIN
1
2
3
6
5
4
FB
GND
LX
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
7
Suitable for use in SnPb or Pb-free soldering processes.
WDFN-6L 2x2
Simplified Application Circuit
L
V
IN
C
IN
VIN
LX
R1
C
OUT
R2
V
OUT
RT5712A
EN
FB
GND
Copyright © 2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS5712A-04
June 2019
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
