RT8015
2A, 2MHz, Synchronous Step-Down Regulator
General Description
The RT8015 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 2A of output current.
The internal synchronous low on-resistance power
switches increase efficiency and eliminate the need for
an external Schottky diode. Switching frequency is set
by an external resistor or can be synchronized to an
external clock. 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.
RT8015 operation in forced continuous PWM Mode which
minimizes ripple voltage and reduces the noise and RF
interference. 100% duty cycle in Low Dropout Operation
further maximize battery life.
Features
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High Efficiency : Up to 95%
Low R
DS(ON)
Internal Switches : 110mΩ
Programmable Frequency : 300kHz to 2MHz
No Schottky Diode Required
0.8V Reference Allows Low Output Voltage
Forced Continuous Mode Operation
Low Dropout Operation : 100% Duty Cycle
RoHS Compliant and 100% Lead (Pb)-Free
Applications
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Portable Instruments
Battery-Powered Equipment
Notebook Computers
Distributed Power Systems
IP Phones
Digital Cameras
Pin Configurations
(TOP VIEW)
SHDN/RT
GND
LX
PGND
2
8
GND
3
6
9
4
5
7
COMP
FB
VDD
PVDD
Ordering Information
RT8015
Package Type
SP : SOP-8 (Exposed Pad-Option 2)
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
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SOP-8 (Exposed Pad)
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.
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DS8015-03 March 2011
www.richtek.com
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RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
