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| 型号： | MIC23250-3BYMT TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 0.4A DL 10TMLF |
| 产品培训模块： | MIC23xxx HyperLight Load™ Regulators |
| 标准包装： | 1 |
| 系列： | HyperLight Load® |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 2 |
| 输出电压： | 0.9V，1.1V |
| 输入电压： | 2.7 V ~ 5.5 V |
| PWM 型： | 混合物 |
| 频率 - 开关： | 4MHz |
| 电流 - 输出： | 400mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-UFDFN，10-TMLF? |
| 包装： | 标准包装 |
| 供应商设备封装： | 10-TMLF?（2x2） |
| 产品目录页面： | 1094 (CN2011-ZH PDF) |
| 其它名称： | 576-3255-6 |
MIC23250
4MHz Dual 400mA Synchronous Buck
Regulator with HyperLight Load?
General Description
Features
The MIC23250 is a high efficiency 4MHz dual 400mA
? Input voltage: 2.7V to 5.5V
HyperLight Load?
10-pin 2mm x 2mm Thin MLF . The adjustable output
options is available in a 12-pin 2.5mm x 2.5mm Thin MLF .
synchronous buck regulator with HyperLight Load? mode.
HyperLight Load? provides very high efficiency at light
loads and ultra-fast transient response which is perfectly
suited for supplying processor core voltages. An additional
benefit of this proprietary architecture is very low output
ripple voltage throughout the entire load range with the use
of small output capacitors. The fixed output MIC23250 has
a tiny 2mm x 2mm Thin MLF ? package that saves
precious board space by requiring only 6 additional
external components to drive both outputs up to 400mA
each.
The device is designed for use with a 1μH inductor and a
4.7μF output capacitor that enables a sub-1mm height.
The MIC23250 has a very low quiescent current of 33μA
with both outputs enabled and can achieve over 85%
efficiency at 1mA. At higher loads the MIC23250 provides a
constant switching frequency around 4MHz while providing
peak efficiencies up to 94%.
The MIC23250 fixed output voltage option is available in a
?
?
The MIC23250 is designed to operate over the junction
operating range from –40 ° C to +125 ° C.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com .
? Dual output current 400mA/400mA
? Up to 94% peak efficiency and 85% efficiency at 1mA
? 33μA dual quiescent current
? 1μH inductor with a 4.7μF capacitor
? 4MHz in PWM operation
? Ultra fast transient response
? Low voltage output ripple
? 20mVpp in HyperLight Load? mode
? 3mV output voltage ripple in full PWM mode
? 0.01μA shutdown current
? Fixed output:10-pin 2mm x 2mm Thin MLF?
? Adjustable output:12-pin 2.5mm x 2.5mm Thin MLF?
? –40 ° C to +125 ° C junction temperature range
Applications
? Mobile handsets
? Portable media players
? Portable navigation devices (GPS)
? WiFi/WiMax/WiBro modules
? Digital cameras
? Wireless LAN cards
? USB Powered Devices
____________________________________________________________________________________________________________
Typical Application
Efficiency V OUT = 1.8V
100
90 VIN = 2.7V
80
70 VIN = 4.2V
60
50
40
30
VIN = 3.0V
VIN = 3.6V
11
20
10
0
L = 1μH
C OUT = 4.7μF
0 100 1000
OUTPUT CURRENT (mA)
HyperLight Load is a trademark of Micrel, Inc.
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
June 2010
M9999-061110-E
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC23250-AAYMT | 制造商:Micrel Inc 功能描述:Dual 400mA Buck Reg w HyperLight Load |
| MIC23250-AAYMT EV | 功能描述:电源管理IC开发工具 High Efficiency Dual 400mA Synchronous Buck Switcher - Evaluation Board RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MIC23250-AAYMT TR | 功能描述:直流/直流开关调节器 High Efficiency Dual 400mA Synchronous Buck Switcher 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 |
| MIC23250-AAYMTEV | 制造商:Micrel Inc 功能描述:Evaluation Board MIC23250-AAYMT |
| MIC23250-AAYMT-EV | 功能描述:MIC23250 HyperLight Load? DC/DC, Step Down 2, Non-Isolated Outputs Evaluation Board 制造商:microchip technology 系列:HyperLight Load? 零件状态:有效 主要用途:DC/DC，步降 输出和类型:2，非隔离 功率 - 输出:- 电压 - 输出:1.8V，1.8V 电流 - 输出:400mA，400mA 电压 - 输入:2.7 V ~ 5.5 V 稳压器拓扑:降压 频率 - 开关:4MHz 板类型:完全填充 所含物品:板 使用的 IC/零件:MIC23250 标准包装:1 |
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