- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382448 > RT8020 (Richtek Technology Corporation) Dual High-Efficiency PWM Step-Down DC-DC Converter PDF資料下載
參數(shù)資料
| 型號(hào)： | RT8020 |
| 廠商： | Richtek Technology Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Dual High-Efficiency PWM Step-Down DC-DC Converter |
| 中文描述： | 雙高效率的PWM降壓型DC - DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 229K |
| 代理商： | RT8020 |
RT8020
1
DS8020-03 August 2007
www.richtek.com
Applications
l
Mobile Phones
l
Personal Information Appliances
l
Wireless and DSL Modems
l
MP3 Players
l
Portable Instruments
Note :
Richtek Pb-free and Green 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.
}
100% matte tin (Sn) plating.
Ordering Information
RT8020
Pin Configurations
(TOP VIEW)
WDFN-12L 3x3
Dual High-Efficiency PWM Step-Down DC-DC Converter
Features
l
+2.5V to +5.5V Input Range
l
Adjustable Output From 0.6V to V
IN
l
1.2V, 1.3V, 1.8V, 2.5V and 3.3V Fixed/ Adjustable
Output Voltage
l
1A Output Current
l
95% Efficiency
l
No Schottky Diode Required
l
50uA Quiescent Current per Channel
l
1.5MHz Fixed-Frequency PWM Operation
l
Small 12-Lead WDFN Package
l
RoHS Compliant and 100% Lead (Pb)-Free
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area, otherwise visit our website for detail.
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 0.1
μ
A 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.
Package Type
QW : WDFN-12L 3x3 (W-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
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
VIN2
LX2
GND
FB1
EN1
EN2
NC2
FB2
GND
LX1
VIN1
11
10
9
8
1
2
3
4
5
6
12
7
GND
13
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RT8020AGQW | Dual High-Efficiency PWM Step-Down DC-DC Converter |
| RT8020APQW | Dual High-Efficiency PWM Step-Down DC-DC Converter |
| RT8020BGQW | Dual High-Efficiency PWM Step-Down DC-DC Converter |
| RT8020BPQW | Dual High-Efficiency PWM Step-Down DC-DC Converter |
| RT8020CGQW | Dual High-Efficiency PWM Step-Down DC-DC Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RT8020_12 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Dual High-Efficiency PWM Step-Down DC/DC Converter |
| RT8020AGQW | 功能描述:IC REG BUCK SYNC 1A DL 12WDFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:5 V ~ 25 V 輸入電壓:2.3 V ~ 5.5 V PWM 型:電流模式 頻率 - 開關(guān):600kHz，1.2MHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 包裝:管件 供應(yīng)商設(shè)備封裝:8-MSOP |
| RT8020APQW | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Dual High-Efficiency PWM Step-Down DC-DC Converter |
| RT8020BGQW | 功能描述:IC REG BUCK SYNC 1A DL 12WDFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:5 V ~ 25 V 輸入電壓:2.3 V ~ 5.5 V PWM 型:電流模式 頻率 - 開關(guān):600kHz，1.2MHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 包裝:管件 供應(yīng)商設(shè)備封裝:8-MSOP |
| RT8020BPQW | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Dual High-Efficiency PWM Step-Down DC-DC Converter |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。