RT8010GQW Datasheet, PDF (1/15 Pages) Richtek Technology Corporation – 1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter

®
RT8010/A
1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter
General Description
The RT8010/A is a high efficiency Pulse-Width-Modulated
(PWM) step-down DC/DC converter. Capable of delivering
1A output current over a wide input voltage range from
2.5V to 5.5V, the RT8010/A 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.
Two operating modes are available including : PWM/Low-
Dropout autoswitch and shutdown modes. 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 RT8010/A enters Low Dropout mode when normal
PWM cannot provide regulated output voltage by
continuously turning on the upper P-MOSFET. RT8010/A
enter shut-down mode and consumes less than 0.1μA
when EN pin is pulled low.
The switching ripple is easily smoothed-out by small
package filtering elements due to a fixed operating
frequency of 1.5MHz. This along with small WDFN-6L 2x2
and WQFN-16L 3x3 package provides small PCB area
application. Other features include soft start, lower internal
reference voltage with 2% accuracy, over temperature
protection, and over current protection.
Pin Configurations
(TOP VIEW)
IC ¹
EN 2
VIN 3
16 15 14 13
GND 1
12 VIN
6 FB/VOUT
GND 2
5 _GND
GND 3
7 _{4 LX}
FB/VOUT 4
11 VIN
10 VIN
17
9 VIN
5678
WDFN-6L 2x2 (RT8010)
WQFN-16L 3x3 (RT8010A)
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS8010/A-09 September 2012
Features
2.5V to 5.5V Input Range
Output Voltage (Adjustable Output From 0.6V to V_IN)
` RT8010 : 1V, 1.2V, 1.5V, 1.6V, 1.8V, 2.5V and 3.3V
Fixed/Adjustable Output Voltage
` RT8010A Adjustable Output Voltage Only
1A Output Current
95% Efficiency
No Schottky Diode Required
1.5MHz Fixed-Frequency PWM Operation
Small 6-Lead WDFN and 16-Lead WQFN Package
RoHS Compliant and 100% Lead (Pb)-Free
Applications
Mobile Phones
Personal Information Appliances
Wireless and DSL Modems
MP3 Players
Portable Instruments
Ordering Information
RT8010/A(- )
Package Type
QW : WDFN/WQFN (W-Type)
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Note :
Output Voltage
Default : Adjustable (RT8010/A)
Fixed (RT8010)
10 : 1.0V
12 : 1.2V
15 : 1.5V
16 : 1.6V
18 : 1.8V
25 : 2.5V
33 : 3.3V
WQFN-16L 3x3
WDFN-6L 2x2
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.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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