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| 型号： | MIC2174-1YMM |
| 厂商： | Micrel Inc |
| 文件页数： | 2/27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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Micrel, Inc.
Ordering Information
MIC2174/MIC2174C
Part Number
MIC2174-1YMM
MIC2174C-1YMM
Voltage
Adj.
Adj.
Accuracy
±1%
±3%
Switching Frequency
300kHz
270kHz
Junction Temperature
Range
–40° to +125°C
–40° to +125°C
Package
10-Pin MSOP
10-Pin MSOP
Lead Finish
Pb-Free
Pb-Free
Pin Configuration
10-Pin MSOP (MM)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
Pin Name
HSD
EN
FB
GND
IN
DL
PGND
DH
Pin Function
High-Side N-MOSFET Drain Connection (input): Power to the drain of the external high-side N-
channel MOSFET. The HSD operating voltage range is from 3V to 40V. Input capacitors between
HSD and the power ground (PGND) are required.
Enable (input): A logic level control of the output. The EN pin is CMOS-compatible. Logic high or
floating = enable, logic low = shutdown. In the off state, supply current of the device is greatly reduced
(typically 0.8mA).
Feedback (input): Input to the transconductance amplifier of the control loop. The FB pin is regulated
to 0.8V. A resistor divider connecting the feedback to the output is used to adjust the desired output
voltage.
Signal ground. GND is the ground path for the device input voltage V IN and the control circuitry. The
loop for the signal ground should be separate from the power ground (PGND) loop.
Input Voltage (input): Power to the internal reference and control sections of the MIC2174/MIC2174C.
The IN operating voltage range is from 3V to 5.5V. A 2.2μF ceramic capacitors from IN to GND are
recommended for clean operation. V IN must be powered up no earlier than V HSD to make the soft-start
function behavior correctly.
Low-Side Drive (output): High-current driver output for external low-side MOSFET. The DL driving
voltage swings from ground to IN.
Power Ground. PGND is the ground path for the MIC2174/MIC2174C buck converter power stage.
The PGND pin connects to the sources of low-side N-Channel MOSFETs, the negative terminals of
input capacitors, and the negative terminals of output capacitors. The loop for the power ground
should be as small as possible and separate from the Signal ground (GND) loop.
High-Side Drive (output): High-current driver output for external high-side MOSFET. The DH driving
voltage is floating on the switch node voltage (LX). It swings from ground to V IN minus the diode drop.
Adding a small resistor between DH pin and the gate of the high-side N-channel MOSFETs can slow
down the turn-on and turn-off time of the MOSFETs.
September 2010
2
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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