RT8016L Datasheet, PDF (1/13 Pages) Richtek Technology Corporation – 1.5MHz, 600mA, High Efficiency PWM Step-Down DC/DC Converter

RT8016L
1.5MHz, 600mA, High Efficiency PWM Step-Down DC/DC
Converter
General Description
Features
The RT8016L is a high-efficiency Pulse-Width-Modulated
(PWM) step-down DC/DC converter capable of delivering
up to 600mA output 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 Input Range : 2.5V to 5.5V
z Adjustable Output Voltage Range : 0.6V to V_IN
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 R_DS(ON) dramatically
reduces conduction loss at PWM mode. No external
Schottky diode is required in practical application.
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.
Applications
z Mobile Phones
z Personal Information Appliances
z Wireless and DSL Modems
z MP3 Players
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)
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-8L 1.6x1.6 (COL) package which
allows small PCB area application.
Pin Configurations
(TOP VIEW)
NC
8
GND 1
7 FB/VOUT
EN 2
6 GND
VIN 3
5 LX
4
NC
WQFN-8L 1.6x1.6 (COL)
Note :
Output Voltage
Default : Adjustable
10 : 1.0V
11 : 1.1V
:
32 : 3.2V
33 : 3.3V
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.
Marking Information
BSW
BS : Product Code
W : Date Code
DS8016L-02 March 2011
www.richtek.com
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