RT8016L
1.5MHz, 600mA, High Efficiency PWM Step-Down DC/DC
Converter
General Description
Features
z Input Range : 2.5V to 5.5V
The RT8016L is a high-efficiency Pulse-Width-Modulated
(PWM) step-downDC/DC converter capable of delivering
up to 600mAoutput current over a wide input voltage range
from 2.5V to 5.5V. The RT8016L is ideally suited for
portable electronic devices that are powered from 1-cell
Li-ion battery or from other power sources, such as cellular
phones, PDAs and hand-held devices.
z Adjustable Output Voltage Range : 0.6V to VIN
z 600mA Output Current
z Efficiency up to 95%
z No Schottky Diode Required
z 1.5MHz Fixed-Frequency PWM Operation
z RoHS Compliant and Haloger Free
Two operating modes are available including : PWM/low
dropout autoswitch mode and shut-down mode. The
internal synchronous rectifier with low RDS(ON) dramatically
reduces conduction loss at PWM mode. No external
Schottky diode is required in practical application.
Applications
z Mobile Phones
z Personal InformationAppliances
z Wireless and DSL Modems
z MP3 Players
The RT8016L enters low dropout mode when normal PWM
can not provide regulated output voltage by continuously
turning on the upper P-MOSFET. The RT8016L enters
Shut-down mode and consumes less than 0.1μA when
the EN pin is pulled low. The RT8016L also offers a fixed
output voltage with a range from 1V to 3.3V with 0.1V per
step or an adjustable output voltage via two external
resistors.
z Portable Instruments
Ordering Information
RT8016L-
Package Type
QW : WQFN-8L 1.6x1.6 (COL) (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Output Voltage
Default : Adjustable
10 : 1.0V
The switching ripple is easily smoothed out by small
package filtering elements due to a fixed operating
frequency of 1.5MHz. Other features include soft-start,
lower internal reference voltage with 2% accuracy, over
temperature protection, and over current protection. The
IC is available in a WQFN-8L1.6x1.6 (COL) package which
allows small PCB area application.
11 : 1.1V
:
32 : 3.2V
33 : 3.3V
Note :
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Pin Configurations
(TOP VIEW)
` Suitable for use in SnPb or Pb-free soldering processes.
NC
8
GND 1
EN 2
VIN 3
7 FB/VOUT
6 GND
Marking Information
5
LX
BS : Product Code
4
NC
BSW
W : Date Code
WQFN-8L 1.6x1.6 (COL)
DS8016L-02 March 2011
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
