RT8015D
3A, 2MHz, Synchronous Step-Down Converter
General Description
The RT8015D is a high efficiency synchronous, step-down
DC/DC converter. Its input voltage range is from 2.6V to
5.5V and provides an adjustable regulated output voltage
from 0.8V to 5V while delivering up to 3A 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
set by an external resistor. The 100% duty cycle provides
low dropout operation extending battery life in portable
systems. Current mode operation with external
compensation allows the transient response to be
optimized over a wide range of loads and output capacitors.
The RT8015D is operated in forced continuous PWM Mode
which minimizes ripple voltage and reduces the noise and
RF interference.
The 100% duty cycle in Low Dropout Operation further
maximize battery life.
The RT8015D is available in the WDFN-10L 3x3 package.
Features
High Efficiency : Up to 95%
Low R
DS(ON)
Internal Switches : 110mΩ
Ω
Programmable Frequency : 300kHz to 2MHz
No Schottky Diode Required
0.8V Reference Allows for Low Output Voltage
Forced Continuous Mode Operation
Low Dropout Operation : 100% Duty Cycle
Power Good Output Voltage Indicator
RoHS Compliant and Halogen Free
Applications
Portable Instruments
Battery-Powered Equipment
Notebook Computers
Distributed Power Systems
IP Phones
Digital Cameras
Pin Configurations
(TOP VIEW)
SHDN/RT
GND
LX
LX
PGND
1
2
3
4
5
10
9
8
7
9
Ordering Information
RT8015D
Package Type
QW : WDFN-10L 3x3
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.
11
COMP
FB
PGOOD
VDD
PVDD
WDFN-10L 3x3
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
DS8015D-02 March 2011
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
