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參數(shù)資料
| 型號： | MP2112 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 1MHz, 1A Synchronous Step-Down Converter |
| 中文描述： | 1MHz的，第1A同步降壓轉換器 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 283K |
| 代理商： | MP2112 |
The Future of Analog IC Technology
MP2112
1MHz, 1A Synchronous
Step-Down Converter
MP2112 Rev. 1.2
3/6/2006
www.MonolithicPower.com
1
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
TM
TM
DESCRIPTION
The MP2112 is a 1MHz constant frequency,
current mode, PWM step-down converter. The
device integrates a main switch and a
synchronous rectifier for high efficiency without
an external Schottky diode. It is ideal for
powering portable equipment that powered by a
single cell Lithium-Ion (Li+) battery. The
MP2112 can supply 1A of load current from a
2.5V to 6V input voltage. The output voltage
can be regulated as low as 0.6V. The MP2112
can also run at 100% duty cycle for low dropout
applications.
The MP2112 is available in a space-saving
6-pin QFN package.
FEATURES
High Efficiency: Up to 95%
1MHz Constant Switching Frequency
1A Available Load Current
2.5V to 6V Input Voltage Range
Output Voltage as Low as 0.6V
100% Duty Cycle in Dropout
Current Mode Control
Short Circuit Protection
Thermal Fault Protection
<0.1μA Shutdown Current
Space Saving 3mm x 3mm QFN6 Package
APPLICATIONS
Cellular and Smart Phones
Microprocessors and DSP Core Supplies
PDAs
MP3 Players
Digital Still and Video Cameras
Portable Instruments
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
MP2112
EN
SW
FB
3
5
6
GND
2
VINA
VINB
1
4
V
OUT
1.8V/1A
EN
MP2112_TAC_S01
2.5V to 6V
V
IN
100
90
80
70
60
50
40
30
20
10
0
E
10
100
1000
LOAD CURRENT (mA)
MP2112-EC01
Efficiency vs
Load Current
V
IN
= 3.3V
V
IN
= 4.2V
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| MP2303 | 3A, 28V, 340KHz Synchronous Rectified Step-Down Converter |
| MP2303_06 | 3A, 28V, 340KHz Synchronous Rectified Step-Down Converter |
| MP2303DN | 3A, 28V, 340KHz Synchronous Rectified Step-Down Converter |
| MP2303DQ | 3A, 28V, 340KHz Synchronous Rectified Step-Down Converter |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MP2112DJ-LF-Z | 功能描述:開關變換器、穩(wěn)壓器與控制器 1A, 6V, 1MHz Synchronous Buck RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MP2112DQ | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:1MHz, 1A Synchronous Step-Down Converter |
| MP2112DQ-LF-P | 功能描述:開關變換器、穩(wěn)壓器與控制器 1A, 6V, 1MHz Synchronous Buck RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MP2112DQ-LF-Z | 功能描述:開關變換器、穩(wěn)壓器與控制器 1A, 6V, 1MHz Synchronous Buck RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MP2113 | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:1.5A Synchronous Step-Down Converter with Dynamic Voltage Control |
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