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MIC2183YQS PDF预览

MIC2183YQS

更新时间: 2024-10-01 20:19:15
品牌 Logo 应用领域
美国微芯 - MICROCHIP 信息通信管理开关光电二极管
页数 文件大小 规格书
12页 146K
描述
SWITCHING CONTROLLER, 440kHz SWITCHING FREQ-MAX, PDSO16

MIC2183YQS 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:SSOP,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:19 weeks风险等级:5.16
其他特性:ALSO OPERATES IN ADJUSTABLE MODE FROM 1.3 TO 12 V模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:14 V最小输入电压:2.9 V
标称输入电压:5 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:4.89 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C标称输出电压:3 V
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.748 mm表面贴装:YES
切换器配置:PUSH-PULL最大切换频率:440 kHz
技术:BICMOS温度等级:INDUSTRIAL
端子面层:MATTE TIN端子形式:GULL WING
端子节距:0.635 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:3.9 mm
Base Number Matches:1

MIC2183YQS 数据手册

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MIC2183  
Micrel, Inc.  
MIC2183  
Low Voltage Synchronous Buck PWM Control IC  
General Description  
Features  
Micrel’s MIC2183 is a high efficiency PWM synchronous  
buck control IC. With its wide input voltage range of 2.9V to  
14V, the MIC2183 can be used to efficiently step voltages  
down in 1- or 2-cell Li Ion battery powered applications, as  
well as in fixed 3.3V, 5V, or 12V systems.  
• Input voltage range: 2.9V to 14V  
• >90% efficiency  
• Oscillator frequency of 400kHz  
• Frequency divide-by-two pin  
• Frequency sync to 600kHz  
• FreqOut oscillator output allows simple charge pump  
implementation in low voltage systems  
• Front edge blanking  
Efficiencies over 90% are achievable over a wide range of  
load conditions with the MIC2183’s PWM control scheme.  
The operating frequency can be divided by two by raising the  
• 5output drivers (typical)  
FREQ/2pintoV .Thisallowstheusertooptimizeefficiency  
DD  
• Soft start  
versus board space. It also allows the MIC2183 to be exter-  
• PWM current mode control  
nally synchronized to frequencies below its nominal 400KHz.  
• 1µA shutdown current  
The MIC2183 features an oscillator output, FreqOut, which  
can be used to implement a simple charge pump in low  
voltage applications. The output of the charge pump can be  
• Cycle-by-cycle current limiting  
• Frequency foldback short circuit protection  
• Adjustable under-voltage lockout  
• 16-pin narrow-body SOP and QSOP package options  
fed into the gate drive power circuitry via the V P pin. This  
IN  
featureallowsenhancedgatedrive,hencehigherefficiencies  
Applications  
at low input voltages.  
MIC2183 also features a 1µA shutdown mode, and a pro-  
grammable undervoltage lockout, making it well-suited for  
portable applications.  
• 3.3V to 2.5V/1.8V/1.5V conversion  
• DC power distribution systems  
• Wireless modems  
• ADSL line cards  
The MIC2183 is available in 16-pin SOP and QSOP packag-  
ing options with a junction temperature range from -40°C to  
+125°C.  
• 1-and 2-cell Li Ion battery operated equipment  
• Satellite Phones  
Typical Application  
µ
MIC2183 EFFICIENCY  
100  
95  
90  
85  
80  
75  
70  
µ
V
V
f
= 3.3V  
IN  
OUT  
S
65  
60  
55  
50  
= 2.5V  
= 200kHz  
µ
0
1
2
3
4
5
OUTPUT CURRENT (A)  
Adjustable Output Synchronous Buck Converter  
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-042205  
April 2005  
1

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