MIC2185

更新时间： 2024-11-10 22:46:15

品牌	Logo	应用领域
麦瑞 - MICREL		/
页数	文件大小	规格书
15页	135K
描述
Low Voltage Synchronous Boost PWM Control IC

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MIC2185 数据手册

MIC2185

Micrel

MIC2185

Low Voltage Synchronous Boost PWM Control IC

Final Information

General Description

Features

Micrel’s MIC2185 is a high efficiency synchronous boost

PWM control IC. With its wide input voltage range of 2.9V to

14V, the MIC2185 can be used to efficiently boost voltages in

1- or 2-cell Li Ion battery powered applications, as well as

fixed 3.3V and 5V systems. Its powerful 5Ω output drivers

allow the MIC2185 to supply large output currents with the

selection of the proper external MOSFETs.

• Input voltage range: 2.9V to 14V

• 95% efficiency

• Oscillator frequency of 200kHz/400kHz

• Frequency sync to 600kHz

• 0.5µA shutdown current

• Two 5Ω output drivers

• Front edge blanking

• PWM Current Mode Control

• Cycle-by-Cycle current limiting

• Frequency foldback protection

• Adjustable under-voltage lockout

• Precision 1.245V reference output

• 16 pin SOIC narrow body package and 16 pin QSOP

package

With it’s fixed frequency PWM architecture, and easily syn-

chronized drive, the MIC2185 is ideal for noise-sensitive

telecommunicationsapplications. Thenominal400kHzoper-

ating frequency of the MIC2185 can be divided by two,

allowing the device to be externally synchronized to frequen-

cies below 400kHz.

TheMIC2185alsofeaturesalowcurrentshutdownmodeand

aprogrammableundervoltagelockout.Askippedpulsemode

of operation can be manually set to achieve higher efficien-

cies at light load conditions.

Applications

• 3.3V to 5V conversion in telecom systems

• Satellite Phones

The MIC2185 is available in a 16 pin SOIC package and 16

pin QSOP package with an ambient temperature operating

range from –40°C to 85°C.

• Cable Modems

• 1-and 2-cell Li Ion battery operated equipment

Ordering Information

Part Number

MIC2185BM

MIC2185BQS

Frequency Voltage

Junction Temp. Range

–40°C to +125°C

Package

200/400kHz

Adj

16-lead SOP

16-lead QSOP

–40°C to +125°C

Typical Application

2.4µH

V_IN= 3.3V

Si9803DY (x2)

V_OUT= 5V

C_IN

VINA

OUTP

C_OUT

EN/UVLO

VINP

5V Output Efficiency

100

FREQ/2

VDD

Si4884DY (x2)

MIC2185

COMP

VREF

SYNC

SKIP

OUTN

CSH

8mΩ

PGND

V_IN= 3.3V

200kHz PWM

SGND

OUTPUT CURRENT (A)

Adjustable Output Synchronous Boost Converter

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com

May 2002

MIC2185

12 3 4 5 6 7...15

中文翻译

下载PDF

与MIC2185相关器件

型号	品牌	获取价格	描述	数据表
MIC2185_05	MICREL	获取价格	Low Voltage Synchronous Boost PWM Control IC
MIC2185BM	MICREL	获取价格	Low Voltage Synchronous Boost PWM Control IC
MIC2185BMTR	MICREL	获取价格	Switching Controller, Current-mode, 440kHz Switching Freq-Max, BICMOS, PDSO16, SOIC-16
MIC2185BQS	MICREL	获取价格	Low Voltage Synchronous Boost PWM Control IC
MIC2185BQS	ROCHESTER	获取价格	SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO16, QSOP-16
MIC2185BQSTR	MICREL	获取价格	Switching Controller, Current-mode, 440kHz Switching Freq-Max, BICMOS, PDSO16, QSOP-16
MIC2185YMTR	MICREL	获取价格	SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO16, LEAD FREE, SOIC-16
MIC2185YQS	ROCHESTER	获取价格	SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO16, LEAD FREE, QSOP-16
MIC2185YQSTR	MICREL	获取价格	SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO16, LEAD FREE, QSOP-16
MIC2186	MICREL	获取价格	Low Voltage PWM Control IC

与MIC2185相关文章

国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

23
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

7
AMD宣布全球裁员约1000人，调整战略聚焦增长
2024-11-14

8
英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

31

产品中心

服务支持

精选活动

关于我们

帮助中心

MIC2185

MIC2185 数据手册

与MIC2185相关器件

与MIC2185相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MIC2185

MIC2185 数据手册

与MIC2185相关器件

与MIC2185相关文章

您还可以找

您在本页遇到什么问题？