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參數資料
| 型號： | RT8058GQW |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | 1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter |
| 中文描述： | 1MHz的，甲，高效率的PWM降壓型DC / DC轉換器 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 248K |
| 代理商： | RT8058GQW |
RT8058
Preliminary
1
DS8058-02 August 2007
www.richtek.com
Features
l
0.6V Reference Allows Low Output Voltage
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Low Dropout Operation : 100% Duty Cycle
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2A Load Current
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< 2uA Shutdown Current
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Up to 95% Efficiency
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No Schottky Diode Required
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1MHZ Constant Switching Frequency
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Low R
DS(ON)
Internal Switches
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Internally Compensated
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Internal Soft-Start
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Over temperature Protection
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Short Circuit Protection
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Small 16-Lead WQFN Package
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RoHS Compliant and 100% Lead (Pb)-Free
1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter
General Description
The RT8058 is a current mode PWM step-down converter.
The chip is ideal for fixed frequency and low ripple
applications over full range of load conditions. Its input
voltage range is from 2.6V to 5.5V with a constant 1MHz
switching frequency that allows it to adopt tiny, low cost
capacitors and inductors with 2mm or less in height making
it ideal for single-cell Li-lon/polymer battery applications.
The low on resistance internal MOSFET can achieve high
efficiency without the need of external schottky diodes in
wide operating ranges and the output voltage is adjustable
from 0.6V to 5V that can provide up to 2A load current.
The RT8058 operates at 100% duty cycle for low dropout
operation that extends battery life in portable devices.
The RT8058 is available in a WQFN-16L 3x3 package.
Applications
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Portable Instruments
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Microprocessors and DSP Core supplies
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Cellular Telephones
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Wireless and DSL Modems
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Digital Cameras
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PC Cards
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
RT8058
Package Type
QW : WQFN-16L 3x3 (W-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Pin Configurations
(TOP VIEW)
WQFN-16L 3x3
12
11
10
9
13
14
15
16
1
2
3
4
8
7
6
5
FB
PGND
PGND
PGND
PVDD
PVDD
PVDD
VDD
G
E
N
N
N
L
L
L
PGND
17
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相關代理商/技術參數 |
參數描述 |
|---|---|
| RT8058PQW | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:1MHz, 2A, High Efficiency PWM Step-Down DC/DC Converter |
| RT8059 | 制造商:RICHTEK 功能描述:1.5MHz,1A,High Efficiency PWM Step-Down DC/DC Converter |
| RT8059GJ5 | 功能描述:IC REG BUCK SYNC ADJ 1A TSOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:50 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數: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: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 供應商設備封裝:8-MSOP |
| RT8060 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:1.5MHz, 1A High Efficiency Step-Down Converter |
| RT8060A | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:1.5MHz, 1A High Efficiency Step-Down Converter |
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