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RT8020

Description
DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO12
CategoryPower/power management    BuckConv   
File Size305KB,15 Pages
ManufacturerRichtek Technology Corporation
Websitehttps://www.richtek.com/
Download Datasheet Parametric Compare View All

RT8020 Overview

DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO12

RT8020 Parametric

Parameter NameAttribute value
StatusActive
Vin (min)(V)2.5
Vin (max)(V)5.5
Number of Outputs2
Vout (min)(V)0.6
Vout (max)(V)5.5
Preset Vout(V)
Output Adj. MethodResistor
Iout (max)(A)1
Current Limit (typ)(A)1.5
Freq (typ)(kHz)1500
Freq (min)(kHz)1200
Freq (max)(kHz)1800
Ext SyncNo
Ron_HS (typ)(mOhm)280
Ron_LS (typ)(mOhm)250
Iq (typ)(mA)0.05
Features100% Duty Cycle;Current Mode Control;Enable Input;Force PWM;Internal Compensation;OCP;Stable with Ceramic Capacitor
Package TypeWDFN3x3-12
Datasheethttps://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/RT8020/DS8020-09.pdf
®
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
50μA Quiescent Current per Channel
μ
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
©
2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS8020-09 August 2016
www.richtek.com
1

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Description DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO12 DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO12 DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO12 DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO12 DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO12 DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO12 DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO12 DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO12 DUAL SWITCHING CONTROLLER, 1800 kHz SWITCHING FREQ-MAX, PDSO12
Rated input voltage - 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V
Number of functions - 1 1 1 1 1 1 1 1
Number of terminals - 12 12 12 12 12 12 12 12
Minimum operating temperature - -40 Cel -40 Cel -40 Cel -40 Cel -40 Cel -40 Cel -40 Cel -40 Cel
Maximum operating temperature - 85 Cel 85 Cel 85 Cel 85 Cel 85 Cel 85 Cel 85 Cel 85 Cel
Rated output voltage - 1.8 V 1.8 V 1.8 V 1.8 V 1.8 V 1.2 V 1.8 V 1.8 V
Processing package description - 3 X 3 MM, GREEN, WDFN-12 3 X 3 MM, GREEN, WDFN-12 3 X 3 MM, GREEN, WDFN-12 3 X 3 MM, GREEN, WDFN-12 3 X 3 MM, GREEN, WDFN-12 3 X 3 MM, GREEN, WDFN-12 3 X 3 MM, GREEN, WDFN-12 3 X 3 MM, GREEN, WDFN-12
EU RoHS regulations - Yes Yes Yes Yes Yes Yes Yes Yes
state - Contact Mf Contact Mf Contact Mf Contact Mfr Contact Mfr Contact Mfr Contact Mfr Contact Mfr
Analog IC other types - DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER DUAL SWITCHING CONTROLLER
Control Technology - PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Minimum input voltage - 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V 2.5 V
Maximum input voltage - 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
jesd_30_code - S-PDSO-N12 S-PDSO-N12 S-PDSO-N12 S-PDSO-N12 S-PDSO-N12 S-PDSO-N12 S-PDSO-N12 S-PDSO-N12
moisture_sensitivity_level - NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
Packaging Materials - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
ckage_code - HVSON HVSON HVSON HVSON HVSON HVSON HVSON HVSON
packaging shape - SQUARE SQUARE SQUARE SQUARE SQUARE SQUARE SQUARE SQUARE
Package Size - SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
eak_reflow_temperature__cel_ - NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
seated_height_max - 0.8000 mm 0.8000 mm 0.8000 mm 0.8000 mm 0.8000 mm 0.8000 mm 0.8000 mm 0.8000 mm
surface mount - YES YES YES YES YES YES YES YES
Switch configuration - PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT
Maximum switching frequency - 1800 kHz 1800 kHz 1800 kHz 1800 kHz 1800 kHz 1800 kHz 1800 kHz 1800 kHz
Temperature level - INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
terminal coating - NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
Terminal form - NO LEAD NO LEAD NO LEAD NO LEAD NO LEAD NO LEAD NO LEAD NO LEAD
Terminal spacing - 0.4500 mm 0.4500 mm 0.4500 mm 0.4500 mm 0.4500 mm 0.4500 mm 0.4500 mm 0.4500 mm
Terminal location - DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
ime_peak_reflow_temperature_max__s_ - NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
length - 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm
width - 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm
dditional_feature - 3.3 VOLT OUTPUT ALSO AVAILABLE 3.3 VOLT OUTPUT ALSO AVAILABLE 3.3 VOLT OUTPUT ALSO AVAILABLE 3.3 VOLT OUTPUT ALSO AVAILABLE 3.3 VOLT OUTPUT ALSO AVAILABLE 3.3 VOLT OUTPUT ALSO AVAILABLE 3.3 VOLT OUTPUT ALSO AVAILABLE 3.3 VOLT OUTPUT ALSO AVAILABLE
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Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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