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MIC2602 PDF预览

MIC2602

更新时间: 2023-12-06 20:11:24
品牌 Logo 应用领域
美国微芯 - MICROCHIP /
页数 文件大小 规格书
13页 376K
描述
The MIC2601/2 is a 1.2MHz/2MHz, PWM DC/DC boost switching regulator. High power density is achieve

MIC2602 数据手册

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MIC2601/2  
1.2A, 1.2MHz/2MHz Wide Input Range  
Integrated Switch Boost Regulator  
General Description  
Features  
The MIC2601/2 is a 1.2MHz/2MHz, PWM DC/DC boost  
switching regulator available in a 2mm x 2mm MLF®  
package. High power density is achieved with the  
MIC2601/2’s internal 40V/1.2A switch, allowing it to power  
large loads in a tiny footprint.  
Wide input voltage range: 4.5V to 20V  
Output voltage adjustable to 40V  
1.2A switch current  
MIC2601 operates at 1.2MHz  
MIC2602 operates at 2MHz  
Stable with small size ceramic capacitors  
High efficiency  
Programmable soft start  
<10µA shutdown current  
UVLO  
The  
MIC2601/2  
implements  
constant  
frequency  
1.2MHz/2MHz PWM current mode control. The MIC2601/2  
offers internal compensation that provides excellent  
transient response and output regulation performance. The  
high frequency operation saves board space by allowing  
small, low-profile external components. The fixed  
frequency PWM scheme also reduces spurious switching  
noise and ripple to the input power source.  
Output over-voltage protection  
Over temperature shutdown  
8-pin 2mm x 2mm MLF® package  
–40°C to +125°C junction temperature range  
Soft start reduces in rush current and is programmable via  
external capacitor.  
The MIC2601/2 is available in a 2mm x 2mm 8-pin MLF®  
leadless package. Both devices have an output over-  
voltage protection feature.  
Applications  
The MIC2601/2 has an operating junction temperature  
range of –40°C to +125°C.  
Multimedia STB/Antenna  
Broadband communications  
TFT-LCD bias supplies  
Bias supply  
Data sheets and support documentation can be found on  
Micrel’s web site at: www.micrel.com.  
Positive output regulators  
SEPIC converters  
DSL applications  
Local boost regulators  
___________________________________________________________________________________________________________  
Typical Application  
10µH  
18V  
Efficiency  
OUT  
VOUT  
18V, 500mA  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
MIC2601/2  
12V  
8V  
IN  
IN  
6.65K  
VIN  
SW  
VIN = 12V  
EN  
FB  
SS  
2.2µF  
0.1µF  
10µF  
VDD  
0.1µF  
AGND PGND  
0
100 200 300 400 500 600 700800  
LOAD CURRENT (mA)  
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, 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  
M9999-090909-A  
September 2009  

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