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MIC2169ABMM PDF预览

MIC2169ABMM

更新时间: 2024-09-17 04:39:59
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管输出元件
页数 文件大小 规格书
17页 1301K
描述
500kHz PWM Synchronous Buck Control IC

MIC2169ABMM 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:MSOP
包装说明:TSSOP, TSSOP10,.19,20针数:10
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.16
Is Samacsys:N其他特性:ALSO HAS OUTPUT VOLTAGE ADJUSTABLE DOWN TO 0.8V
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:14.5 V
最小输入电压:3 V标称输入电压:5 V
JESD-30 代码:S-PDSO-G10JESD-609代码:e0
长度:3 mm湿度敏感等级:1
功能数量:1端子数量:10
最高工作温度:125 °C最低工作温度:-40 °C
标称输出电压:5 V封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP10,.19,20
封装形状:SQUARE封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):240认证状态:Not Qualified
座面最大高度:1.1 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:PUSH-PULL
最大切换频率:550 kHz温度等级:AUTOMOTIVE
端子面层:Tin/Lead (Sn85Pb15)端子形式:GULL WING
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:3 mm
Base Number Matches:1

MIC2169ABMM 数据手册

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MIC2169A  
500kHz PWM Synchronous Buck Control IC  
General Description  
Features  
The MIC2169A is a high-efficiency, simple to use 500kHz  
PWM synchronous buck control IC housed in a small MSOP-  
10package.TheMIC2169AallowscompactDC/DCsolutions  
with a minimal external component count and cost.  
• 3V to 14.5V input voltage range  
• Adjustable output voltage down to 0.8V  
• Up to 95% efficiency  
• 500kHz PWM operation  
• Adjustable current limit senses high-side N-Channel  
MOSFET current  
• No external current-sense resistor  
• Adaptive gate drive increases efficiency  
• Ultra-fast response with hysteretic transient recovery  
mode  
• Overvoltage protection protects the load in fault  
conditions  
• Dual mode current limit speeds up recovery time  
• Hiccup mode short-circuit protection  
• Internal soft-start  
The MIC2169A operates from a 3V to 14.5V input, without  
the need of any additional bias voltage. The output voltage  
can be precisely regulated down to 0.8V. The adaptive all  
N-Channel MOSFET drive scheme allows efficiencies over  
95% across a wide load range.  
The MIC2169A senses current across the high-side N-  
Channel MOSFET, eliminating the need for an expensive  
and lossy current-sense resistor. Current limit accuracy is  
maintained by a positive temperature coefficient that tracks  
the increasing R  
of the external MOSFET. Further cost  
DS(ON)  
and space are saved by the internal in-rush-current limiting  
digital soft-start.  
• Dual function COMP and EN pin allows low-power shut-  
down  
• Small size MSOP 10-lead package  
The MIC2169A is available in a 10-pin MSOP package, with  
a wide junction operating range of –40°C to +125°C.  
Applications  
• Point-of-load DC/DC conversion  
• Set-top boxes  
All support documentation can be found on Micrel’s web site  
at www.micrel.com.  
• Graphic cards  
• LCD power supplies  
Telecom power supplies  
• Networking power supplies  
• Cable modems and routers  
Typical Application  
VIN = 5V  
MIC2169A Efficiency  
SD103BWS  
100  
100F  
95  
90  
85  
80  
75  
70  
0.1F  
4.7F  
0.1F  
5  
VDD  
BST  
CS  
1k  
IRF7821  
VIN  
HSD  
MIC2169A  
65  
2.5H  
3.3V  
2  
VSW  
VIN = 5V  
VOUT = 3.3V  
60  
55  
50  
COMP/EN  
1.4  
1000pF  
10k  
IRF7821  
150pF  
LSD  
FB  
100nF  
0.1µF  
150F x 2  
0
2
4
6
I
8
10 12 14 16  
(A)  
4k  
GND  
3.24k  
LOAD  
MIC2169A Adjustable Output 500kHz 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  
M9999-111803  
June 2005  
1

MIC2169ABMM 替代型号

型号 品牌 替代类型 描述 数据表
MIC2169BMM MICREL

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MIC2169AYMM MICREL

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