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參數(shù)資料
| 型號： | MIC2202YML |
| 廠商： | MICREL INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | HIGH EFFICIENCY 2MHZ SYNCHRONOUS BUCK CONVERTER 1UP STABLE PWM REGULATOR |
| 中文描述： | 2.5 A SWITCHING REGULATOR, 2200 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | 3 X 3 MM, LEAD FREE, MLF-10 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 565K |
| 代理商： | MIC2202YML |
MIC2202
High Efficiency 2MHz Synchronous Buck
Converter 1F Stable PWM Regulator
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (
408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
March 2007
1
M9999-031907
General Description
The Micrel MIC2202 is a high efficiency 2MHz PWM
synchronous buck regulator. The fast 2MHz operation
along with a proprietary compensation scheme allows the
smallest possible external components. The MIC2202 can
operate with a 1F ceramic output capacitor and a small,
low DC-resistance, 2.2H inductor, reducing system size
and cost while allowing a high level of efficiency.
The MIC2202 operates from 2.3V to 5.5V input and
features internal power MOSFETs that can supply over
600mA of output current with output voltages down to
0.5V. The MIC2202 implements a constant 2MHz pulse-
width-modu-lation (PWM) control scheme which reduces
noise in sensitive RF, audio, and communications
applications.
Additionally,
the
MIC2202
can
be
synchronized to an external clock, or multiple MIC2202s
can easily be daisy-chained with the SYNCLOCK feature.
The MIC2202 has a high bandwidth loop (up to 500kHz)
which allows ultra fast transient response times. This is
very useful when powering applications that require fast
dynamic response such as CPU cores and RF circuitry in
high performance cellular phones and PDAs. The
MIC2202 is available in 10-pin MSOP and 10-pin 3mm ×
3mm MLF
package options with an operating junction
temperature range from –40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
Input voltage range: 2.3V to 5.5V
Output down to 0.5V/600mA
2MHz PWM operation
Stable with 1F ceramic output capacitor.
Ultra-fast transient response (up to 500kHz GBW)
Internal compensation
All ceramic capacitors
>95% efficiency
Fully integrated MOSFET switches
Easily synchronized to external clock
SYNCLOCK feature to daisy chain multiple 2202s
Requires only 4 external components
1% line and load regulation
Logic controlled micropower shutdown
Thermal shutdown and current limit protection
10-pin MSOP and 10-pin 3mm×3mm MLF package
options
–40°C to +125°C junction temperature range
Applications
Cellular phones
PDAs
802.11 WLAN power supplies
FPGA/ASIC power supplies
Dynamically adjustable power supply for CDMA/W-
CDMA RF power amps
DSL modems
Tape drives
___________________________________________________________________________________________________________
Typical Application
10nF
2.2H
VOUT
3.3V
600mA
VIN
2.3V to 5.5V
1F
10k
1.78k
EN
6
5
1
SYNC_IN
SYNC_OUT
10
9
8
7
2
3
4
Adjustable Output Synchronous Buck Regulator
60
65
70
75
80
85
90
95
100
0
0.1 0.2
0.3 0.4 0.5 0.6
EFFI
CI
ENCY
(%)
OUTPUT CURRENT (A)
Efficiency 3.3VOUT
5V
IN
4.2V
IN
L = 2.2H
C
OUT =1F
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2202YML TR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2MHz Synchronous Buck Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MIC2202YML-TR | 功能描述:Buck Switching Regulator IC Positive Adjustable 0.5V 1 Output 600mA 10-VFDFN Exposed Pad, 10-MLF? 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 功能:降壓 輸出配置:正 拓撲:降壓 輸出類型:可調(diào)式 輸出數(shù):1 電壓 - 輸入（最小值）:2.3V 電壓 - 輸入（最大值）:5.5V 電壓 - 輸出（最小值/固定）:0.5V 電壓 - 輸出（最大值）:5.5V 電流 - 輸出:600mA 頻率 - 開關(guān):2MHz 同步整流器:是 工作溫度:-40°C ~ 125°C （TJ） 安裝類型:表面貼裝 封裝/外殼:10-VFDFN 裸露焊盤，10-MLF? 供應(yīng)商器件封裝:10-MLF?（3x3） 標準包裝:1 |
| MIC2202YMM | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2MHz Synchronous Buck Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MIC2202YMM TR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 2MHz Synchronous Buck Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MIC2203 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:High Efficiency 1MHz Synchronous Buck Regulator |
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