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MIC2205-1.5YML

更新时间： 2024-11-05 20:16:23
品牌 Logo 应用领域
美国微芯 - MICROCHIP 开关
页数 文件大小 规格书
16页 453K
描述
2A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, DSO10

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MIC2205-1.5YML 技术参数

是否Rohs认证： 符合生命周期：Active
包装说明：3 X 3 MM, LEAD FREE, MLF-10Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.56Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制技术：PULSE WIDTH MODULATION
最大输入电压：5.5 V最小输入电压：2.7 V
标称输入电压：3.6 VJESD-30 代码：S-XDSO-N10
JESD-609代码：e3长度：3 mm
湿度敏感等级：2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最大输出电流：2 A
封装主体材料：UNSPECIFIED封装代码：VSON
封装形状：SQUARE封装形式：SMALL OUTLINE, VERY THIN PROFILE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1 mm表面贴装：YES
切换器配置：BUCK最大切换频率：2200 kHz
温度等级：AUTOMOTIVE端子面层：MATTE TIN
端子形式：NO LEAD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：40
宽度：3 mmBase Number Matches：1

MIC2205-1.5YML 数据手册

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MIC2205  
2MHz PWM Synchronous Buck  
Regulator with LDO Standby Mode  
General Description  
Features  
The Micrel MIC2205 is a high efficiency 2MHz PWM  
synchronous buck (step-down) regulator that  
features a LOWQ™ LDO standby mode that draws  
only 18µA of quiescent current. The MIC2205  
allows an ultra-low noise, small size, and high  
efficiency solution for portable power applications.  
• 2.7 to 5.5V supply voltage  
• Light load LOWQ™ LDO mode  
18µA quiescent current  
Low noise, 75µVrms  
• 2MHz PWM mode  
Output current to 600mA  
>95% efficiency  
100% maximum duty cycle  
In PWM mode, the MIC2205 operates with a  
constant frequency 2MHz PWM control. Under light  
load conditions, such as in system sleep or standby  
modes, the PWM switching operation can be  
disabled to reduce switching losses. In this light  
load LOWQ™ mode, the LDO maintains the output  
voltage and draws only 18µA of quiescent current.  
The LDO mode of operation saves battery life while  
not introducing spurious noise and high ripple as  
experienced with pulse skipping or bursting mode  
regulators.  
• Adjustable output voltage option down to 1V  
Fixed output voltage options available  
• Ultra-fast transient response  
• Stable with 1µF ceramic output capacitor  
• Fully integrated MOSFET switches  
• Micropower shutdown  
• Thermal shutdown and current limit protection  
• Pb-free 3mm x 3mm MLF-10L package  
• –40°C to +125°C junction temperature range  
The MIC2205 operates from 2.7V to 5.5V input and  
features internal power MOSFETs that can supply  
up to 600mA output current in PWM mode. It can  
operate with a maximum duty cycle of 100% for use  
in low-dropout conditions.  
Applications  
The MIC2205 is available in the 3mm x 3mm MLF-  
10L package with a junction operating range from  
–40°C to +125°C.  
• Cellular phones  
• PDAs  
• USB peripherals  
Data sheets and support documentation can be  
found on Micrel’s web site at www.micrel.com.  
____________________________________________________________________________________________________  
Typical Application  
MIC2205  
2.2µH  
1.8VOUT Efficiency  
VIN  
8
4
9
2
100  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
VOUT  
VIN  
SW  
2.7V to 5.5V  
VIN = 3V  
AVIN  
LDO  
6
7
3
R1  
100k  
C3  
100pF  
C1  
1µF  
EN  
VIN = 3.6V  
VIN = 4.2V  
5
FB  
LOWQ  
BIAS  
LowQ  
C4  
2.2µF  
R2  
125k  
C2  
0.1µF  
PGND AGND  
10  
1
GND  
GND  
0
100 200 300 400 500 600  
OUTPUT CURRENT (mA)  
Adjustable Output Buck Regulator with LOWQ™ Mode  
Patent Pending  
LOWQ is a trademark 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  
M9999-041105  
www.micrel.com  
April 2005  
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