®
RT2101A
2.95V to 6V Input, 3A Output, 2MHz, Synchronous
Step-Down Converter
General Description
The RT2101A is a high efficiency step-down converter and
capable of delivering 3A output current over a wide input
voltage range from 2.95V to 6V.
The RT2101A provides accurate regulation for a variety of
loads with
±3%
accuracy. For reducing inductor size, it
provides up to 2MHz switching frequency. The efficiency
is maximized through the integrated 45mΩ MOSFETs
and 550μA typical supply current.
Under-voltage lockout voltage of the RT2101A is 2.7V, and
it also provides external setting by a resistor network on
the enable pin.
The RT2101A provides protections such as inductor
current limit under-voltage lockout and thermal shutdown.
The over-temperature threshold is 145°C.
The RT2101A is available in WQFN-16L 3x3 package.
Features
AEC-Q100 Grade 2 Qualified
Integrated 45mΩ MOSFETs
Ω
Input Range : 2.95V to 6V
Adjustable PWM Frequency : 700kHz to 2MHz
Output Current : 3A
95% Efficiency
Adjustable Soft-Start
Power Good Indicator
Enable Control
Under-Voltage Lockout
Current Limit
Thermal Shutdown
Applications
Low-Voltage, High-Density Power Systems
Distributed Power Systems
Point-of-Load Conversions
Marking Information
72= : Product Code
Ordering Information
RT2101A
Package Type
QW : WQFN-16L 3x3 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
�½
72=YM
DNN
YMDNN : Date Code
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.
�½
Simplified Application Circuit
V
IN
VIN
EN
PGOOD
SS/TR
RT/SYNC
RT2101A
SW
V
OUT
BOOT
FB
COMP
GND
AGND
Copyright
©
2020 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS2101A-07 March 2020
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
