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参数资料
| 型号： | MIC4723YMME TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 3A 10MSOP |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 1V |
| 输入电压： | 3 V ~ 5.5 V |
| 频率 - 开关： | 2MHz |
| 电流 - 输出： | 3A |
| 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-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-MSOP 裸露焊盘 |
MIC4723
3A 2MHz Integrated Switch
Buck Regulator
General Description
Features
The Micrel MIC4723 is a high efficiency PWM buck (step-
down) regulator that provides up to 3A of output current.
The MIC4723 operates at 2.0MHz and has proprietary
internal compensation that allows a closed loop bandwidth
of over 200KHz.
The low on-resistance internal p-channel MOSFET of the
MIC4723 allows efficiencies over 92%, reduces external
components count and eliminates the need for an
expensive current sense resistor.
The MIC4723 operates from 2.7V to 5.5V input and the
output can be adjusted down to 1V. The devices can
operate with a maximum duty cycle of 100% for use in low-
dropout conditions.
The MIC4723 is available in the exposed pad 12-pin
3mm x 3mm MLF ? and 10-pin ePAD MSOP packages with
a junction operating range from –40°C to +125°C.
Data sheets and support documentation can be found on
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2.7/3.0V to 5.5V supply voltage
2.0MHz PWM mode
Output current to 3A
Up to 94% efficiency
100% maximum duty cycle
Adjustable output voltage option down to 1V
Ultra-fast transient response
Ultra-small external components
Stable with a 1μH inductor and a 4.7μF output
capacitor
Fully integrated 3A MOSFET switch
Micropower shutdown
Thermal shutdown and current limit protection
Pb-free 12-pin 3mm x 3mm MLF ? package
Pb-free 10-pin ePAD MSOP package
–40 ° C to +125 ° C junction temperature range
Micrel’s web site at: www.micrel.com.
Applications
? FPGA/DSP/ASIC applications
? General point of load
? Broadband communications
? DVD/TV recorders
? Point of sale
? Printers/Scanners
? Set top boxes
? Computing peripherals
? Video cards
___________________________________________________________________________________________________________
Typical Application
MIC4723
96
94
92
90
88
86
84
82
80
3.3V OUT Efficiency
4.5V IN
5V IN
5.5V IN
3A 2MHz Buck Regulator
78
76
0
0.5 1 1.5 2 2.5
3
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
June 2008
M9999-060308-E
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC4724 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:3A 2MHz Integrated Switch Buck Regulator with 6Vmax Input |
| MIC4724YMME | 功能描述:直流/直流开关调节器 3A 2MHz Buck Regulator in Epad MSOP-10 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 |
| MIC4724YMME TR | 功能描述:直流/直流开关调节器 3A 2MHz Buck Regulator in Epad MSOP-10 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 |
| MIC47300 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:3A, Low Voltage, Adjustable LDO Regulator with Dual Input Supply |
| MIC47300WD | 制造商:Micrel 功能描述:Micrel MIC47300WD, Low-Dropout (LDO) Voltage Regulators |
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