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RT8020GQW

Description
Conv DC-DC 2.5V to 5.5V Synchronous Step Down Dual-Out 0.6V to 5.5V 1A 12-Pin WDFN EP
File Size316KB,15 Pages
ManufacturerRichtek Technology Corporation
Websitehttps://www.richtek.com/
Environmental Compliance
Download Datasheet Parametric View All

RT8020GQW Overview

Conv DC-DC 2.5V to 5.5V Synchronous Step Down Dual-Out 0.6V to 5.5V 1A 12-Pin WDFN EP

RT8020GQW Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
TypeSynchronous Step Down
Output TypeAdjustable
Switching Frequency (kHz)1800
Switching RegulatorYes
Number of Outputs2
Output Voltage (V)0.6 to 5.5
Maximum Output Current (A)1
Minimum Input Voltage (V)2.5
Maximum Input Voltage (V)5.5
Operating Supply Voltage (V)2.5 to 5.5
Typical Quiescent Current (uA)50
Efficiency (%)95
Maximum ESD Protection Voltage (kV)2@HBM/0.2@MM
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier PackageWDFN EP
Pin Count12
Standard Package NameDFN
MountingSurface Mount
Package Height0.75(Max)
Package Length3.05(Max)
Package Width3.05(Max)
PCB changed12
Lead ShapeNo Lead
®
RT8020
Dual High-Efficiency PWM Step-Down DC/DC Converter
General Description
The RT8020 is a dual high-efficiency Pulse-Width-
Modulated (PWM) step-down DC/DC converter. It is
capable of delivering 1A output current over a wide input
voltage range from 2.5V to 5.5V, the RT8020 is ideally
suited for portable electronic devices that are powered
from 1-cell Li-ion battery or from other power sources within
the range such as cellular phones, PDAs and other hand-
held devices.
Two operational modes are available : PWM/Low-Dropout
auto-switch and shutdown modes. 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 RT8020 enters Low-Dropout mode when normal PWM
cannot provide regulated output voltage by continuously
turning on the upper PMOS. The RT8020 enter shutdown
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 operation
frequency of 1.5MHz. This along with small
WDFN-12L 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.
Features
2.5V to 5.5V Input Range
Adjustable Output From 0.6V to V
IN
1.2V, 1.3V, 1.8V, 2.5V and 3.3V Fixed/ Adjustable
Output Voltage
1A Output Current
95% Efficiency
No Schottky Diode Required
50uA Quiescent Current per Channel
1.5MHz Fixed Frequency PWM Operation
Small 12-Lead WDFN Package
RoHS Compliant and 100% Lead (Pb)-Free
Applications
Mobile Phones
Personal Information Appliances
Wireless and DSL Modems
MP3 Players
Portable Instruments
Ordering Information
RT8020
Package Type
QW : WDFN-12L 3x3 (W-Type)
(Exposed Pad-Option 1)
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Output Voltage : VOUT1/VOUT2
Default : Adjustable
A : 3.3V/1.8V
B : 3.3V/1.3V
C : 3.3V/1.2V
D : 2.5V/1.8V
Note :
Richtek products are :
½
Pin Configurations
(TOP VIEW)
VIN2
LX2
GND
FB1
NC1
EN1
1
2
3
4
5
6
12
11
10
9
8
7
GND
13
EN2
NC2
FB2
GND
LX1
VIN1
WDFN-12L 3x3
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.
½
Copyright
©
2015 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS8020-08
June 2015
www.richtek.com
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