RT2652 Datasheet, PDF (1/12 Pages) Richtek Technology Corporation – 2A, 1.2MHz Synchronous Step-Down Converter

®
RT2652
2A, 1.2MHz Synchronous Step-Down Converter
General Description
The RT2652 is a high efficiency synchronous, step-down
DC/DC converter. The available input voltage range is from
2.7V to 5.5V the regulated output voltage is adjustable
from 0.6V to VIN 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 switching frequency is
fixed internally at 1.2MHz. The 100% duty cycle provides
low dropout operation extending battery life in portable
systems. Current mode operation with internal
compensation allows the transient response to be
optimized. The RT2652 is available in the WDFN-10L 3x3
package.
Ordering Information
RT2652
Package Type
QW : WDFN-10L 3x3 (W-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.
Features
z High Efficiency : Up to 95%
z Fixed Frequency : 1.2MHz
z No Schottky Diode Required
z Internal Compensation
z 0.6V Reference Allows Low Output Voltage
z 100% Duty Cycle for Low Dropout Operation
z OCP, UVP, OTP
z RoHS Compliant and Halogen Free
Applications
z Enterprise Servers
z Ethernet Switches & Routers
z Global Storage
z Telecom & Industrial
z Cell Phones & DSC's
Pin Configurations
(TOP VIEW)
EN 1
VIN 2
VIN 3
AGND ⁴
FB 5
10 _PGND
9 _PGND
8 LX
7 LX
11 6 AGND
WDFN-10L 3x3
Marking Information
0K= : Product Code
0K=YM
DNN
YMDNN : Date Code
Simplified Application Circuit
RT2652
V_IN
VIN
LX
V_OUT
EN
FB
AGND PGND
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS2652-00 November 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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