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| 型号： | MIC2250YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/14页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 2A 8MLF |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.5 V ~ 32 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 最高 2.5MHz |
| 电流 - 输出： | 2A |
| 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： | 8-VFDFN 裸露焊盘，8-MLF? |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-MLF?（2x2） |
| 产品目录页面： | 1093 (CN2011-ZH PDF) |
| 其它名称： | 576-3302-6 |
MIC2250
High-Efficiency Low EMI
Boost Regulator
General Description
The MIC2250 is a general purpose DC/DC boost switching
regulator that features low noise, EMI reduction circuitry,
and high efficiency across a wide output current range.
The MIC2250 is optimized for noise-sensitive hand held
battery powered applications. A proprietary control method
allows low ripple across the output voltage and current
ranges. The MIC2250 incorporates a pseudo-random
dithering function to reduce EMI levels up to 10dB enabled
by the DITH pin.
The MIC2250 is designed for use with inductor values from
4.7μH to 22μH, and is stable with ceramic capacitors from
1μF to 22μF.
The MIC2250 attains a high peak efficiency up to 90% at
100mA and excellent light load efficiency of 80% at 1mA.
High power density is achieved with the MIC2250’s
internal 34V/2A rated switch, allowing it to power large
loads in a tiny footprint.
The MIC2250-1 is available in a 5-pin Thin SOT-23
package with dithering disabled. While the MIC2250-2 is
available in a 5-pin Thin SOT-23 package with dithering
enabled. The MIC2250 is available in 8-pin 2mm x 2mm
MLF ? leadless package option with an operating junction
temperature range of –40°C to +125°C.
Data sheets and support documentation can be found on
Features
? Over 80% efficient for a 300:1 load range
? 2.5V to 5.5V input voltage range
? Output voltage adjustable to 32V
? 52μA (typ) quiescent current
? Constant peak current control reduces output ripple
? EMI reduction circuitry
? Stable with small ceramic capacitors
? <1μA shutdown current
? UVLO and thermal shutdown
? 8-pin 2mm x 2mm leadless MLF ? package (MIC2250)
? 5-pin Thin SOT-23 package (MIC2250-1 & -2)
? –40 ° C to +125 ° C junction temperature range
Applications
? LCD/OLED display bias supply
? CCD bias supply
? Mobile Phones, PDA, Media Players, GPS PND
? Haptic displays
? Local 5V, 15V, 24V rail
Micrel’s web site at: www.micrel.com .
___________________________________________________________________________________________________________
Typical Application
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
April 2011
M9999-041811-B
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2251 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:High-Efficiency Low EMI Boost Regulator |
| MIC2251_1105 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:High-Efficiency Low EMI Boost Regulator |
| MIC2251-1YD5 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:High-Efficiency Low EMI Boost Regulator |
| MIC2251-1YD5 TR | 功能描述:直流/直流开关调节器 High-Efficiency Low EMI Boost Regulator with Dithering Disabled in 5-pin TSOT Package 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 |
| MIC2251-1YD5TR | 制造商:Micrel 功能描述:Regulator Boost 2A 2.5 5.5V EFF SOT23 5 |
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