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参数资料
| 型号： | MIC2202YML |
| 厂商： | Micrel Inc |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 0.6A 10MLF |
| 标准包装： | 100 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 0.5V |
| 输入电压： | 2.3 V ~ 5.5 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 2MHz |
| 电流 - 输出： | 600mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘，10-MLF? |
| 包装： | 托盘 |
| 供应商设备封装： | 10-MLF?（3x3） |
MIC2202
High Efficiency 2MHz Synchronous Buck
Converter 1μF Stable PWM Regulator
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 1μF ceramic output capacitor and a small,
low DC-resistance, 2.2μH 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
Features
? Input voltage range: 2.3V to 5.5V
? Output down to 0.5V/600mA
? 2MHz PWM operation
? Stable with 1μF 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
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.
?
?
?
?
?
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
V IN
2.3V to 5.5V
SYNC_IN
SYNC_OUT
EN
1
2
3
4
5
2.2μH
10
9
8
7
6
10k
10nF
1.78k
V OUT
3.3V
600mA
1μF
100
95
90
85
80
75
70
Efficiency 3.3V OUT
4.2V IN
5V IN
L = 2.2μH
C OUT = 1μF
65
Adjustable Output Synchronous Buck Regulator
60
0
0.1 0.2 0.3 0.4 0.5
0.6
OUTPUT CURRENT (A)
MLF and Micro LeadFrame 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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2202YML TR | 功能描述:直流/直流开关调节器 2MHz Synchronous Buck Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体: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:- 包装:剪切带（CT） 零件状态:有效 功能:降压 输出配置:正 拓扑:降压 输出类型:可调式 输出数:1 电压 - 输入（最小值）:2.3V 电压 - 输入（最大值）:5.5V 电压 - 输出（最小值/固定）:0.5V 电压 - 输出（最大值）:5.5V 电流 - 输出:600mA 频率 - 开关:2MHz 同步整流器:是 工作温度:-40°C ~ 125°C （TJ） 安装类型:表面贴装 封装/外壳:10-VFDFN 裸露焊盘，10-MLF? 供应商器件封装:10-MLF?（3x3） 标准包装:1 |
| MIC2202YMM | 功能描述:直流/直流开关调节器 2MHz Synchronous Buck Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MIC2202YMM TR | 功能描述:直流/直流开关调节器 2MHz Synchronous Buck Regulator (Lead Free) RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MIC2203 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:High Efficiency 1MHz Synchronous Buck Regulator |
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