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| 型号： | MIC2174-1YMM |
| 厂商： | Micrel Inc |
| 文件页数： | 1/27页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 10-MSOP |
| 产品培训模块： | MIC2124 Synchronous Current Mode DC-DC Buck Controller |
| 特色产品： | MIC2174 Buck Controller |
| 标准包装： | 100 |
| 系列： | Hyper Speed Control™ |
| PWM 型： | 混合物 |
| 输出数： | 1 |
| 频率 - 最大： | 375kHz |
| 占空比： | 87% |
| 电源电压： | 3 V ~ 40 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 管件 |
| 产品目录页面： | 1092 (CN2011-ZH PDF) |
| 其它名称： | 576-3546-5 |
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MIC2174/MIC2174C
Synchronous Buck Controller
Featuring Adaptive On-Time Control
40V Input, 300kHz
Hyper Speed Control? Family
General Description
Features
The Micrel MIC2174/MIC2174C is a fixed-frequency,
synchronous buck controller featuring adaptive on-time
control. The MIC2174/MIC2174C operates over an input
supply range of 3V to 40V at a fixed switching frequency of
300kHz and is capable of driving 25A of output current.
The output voltage is adjustable down to 0.8V.
A unique Hyper Speed Control? architecture allows for
ultra-fast transient response while reducing the output
capacitance. It also makes ultra-fast transient response
while reducing the output capacitance and also allows for
extremely low duty-cycle operation. The MIC2174 /
MIC2174C utilizes an adaptive T ON ripple controlled
architecture. A UVLO is provided to ensure proper
operation under power-sag conditions to prevent the
external power MOSFET from overheating. A soft-start is
provided to reduce inrush current. Foldback current limit
and “hiccup” mode short-circuit protection ensure FET and
load protection.
The MIC2174/MIC2174C is available in a 10-pin MSOP
(MAX1954A-compatible) package with an operating
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Hyper Speed Control? architecture enables:
– High delta V operation (V HSD = 40V and V OUT = 0.8V)
– Smaller output capacitors than competitors
3V to 40V input voltage
Any Capacitor TM stable
- Zero ESR to high ESR
300kHz switching frequency
Adjustable output from 0.8V to 5.5V (V HSD ≤ 28V)
Adjustable output from 0.8V to 3.6V (V HSD > 28V)
±1% FB accuracy (MIC2174)
±3% FB accuracy (MIC2174C)
Up to 94% efficiency
Foldback current limit and “hiccup” mode short-circuit
protection
Thermal shutdown
Safe start-up into pre-biased loads
–40 ° C to +125 ° C junction temperature range
junction temperature range from –40 ° C to +125 ° C.
Applications
All support documentation can be found on Micrel’s web
site at: www.micrel.com .
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Telecom Networking
Industrial Equipment
Distributed DC power systems
____________________________________________________________________________________________________________
Typical Application
12V to 3.3V Efficiency
100
95
90
85
80
75
70
65
60
55
50
VIN=5V
0
2
4
6
8
10
Synchronous Buck Controller Featuring Adaptive On-Time Control
OUTPUT CURRENT (A)
Hyper Speed Control and Any Capacitor are trademarks of Micrel, 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
September 2010
M9999-091310-C
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2174-1YMM 3A EV | 功能描述:电源管理IC开发工具 300kHz Synch Current Mode PWM Controller - 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 |
| MIC2174-1YMM TR | 功能描述:DC/DC 开关控制器 300kHz Synch Current Mode PWM Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MIC2174C | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Synchronous Buck Controller Featuring Adaptive On-Time Control 40V Input, 300kHz |
| MIC2174C-1YMM | 功能描述:DC/DC 开关控制器 Low Cost 40V Synchronous Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MIC2174C-1YMM TR | 功能描述:DC/DC 开关控制器 Low Cost 40V Synchronous Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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