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PDF MP3217 Data sheet ( Hoja de datos )
| Número de pieza | MP3217 | |
| Descripción | 670kHz Step-up Converter | |
| Fabricantes | MPS | |
| Logotipo |  |
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The Future of Analog IC Technology
DESCRIPTION
The MP3217 is a monolithic step up converter
integrating a 0.5A, 0.6Ω internal switch. The
MP3217 uses current mode, fixed frequency
architecture to regulate the output voltage,
providing fast transient response and cycle by
cycle current limit.
The MP3217 includes under-voltage lockout, over
voltage protection and thermal overload
protection preventing damage in the event of an
output overload.
The MP3217 is available in small 6-pin TSOT23
package.
MP3217
36V, 670kHz Step-up Converter
with a 0.5A Switch
FEATURES
• Internal 0.6Ω Power MOSFET
• Up to 36V Output Voltage
• 670kHz Fixed Switching Frequency
• 42V Over Voltage Shutdown
• Cycle-by-Cycle Over Current Protection
• UVLO, Thermal Shutdown
• Available in TSOT23-6 Packages
APPLICATIONS
• APD Bias Generation
• Portable Applications
• Handheld Computers and PDAs
• Digital Still Cameras
“Monolithic Power Systems”, “MPS”, and “The Future of Analog IC Technology”
are Registered Trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VIN=5V
D1
B0540
VOUT=33V
ENABLE
IN SW
MP3217
EN FB
GND
PGND
Efficiency vs.
Output Current
90
80
70
60
50
40
0 2 4 6 8 10 12 14 16 18 20
OUTPUT CURRENT (mA)
MP3217 Rev. 0.91
10/15/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
1
1 page  
MP3217 –36V, 670kHz STEP-UP CONVERTER WITH A 0.5A SWITCH
TYPICAL PERFORMANCE CHARACTERISTICS
Circuit refer to Figure 2, VIN=5V, VOUT=33V, TA=+25˚C, unless otherwise noted.
Efficiency vs.
Output Current
90
80
70
60
50
40
0 2 4 6 8 10 12 14 16 18 20
OUTPUT CURRENT (mA)
Current Limit vs. Duty
VFB=0V
1000
900
800
700
600
500
400
300
200
100
010 20 30 40 50 60 70 80 90 100
DUTY (%)
Load Regulation
0.60
0.40
0.20
0.00
-0.20
-0.40
-0.60
0
5 10 15 20 25
OUTPUT CURRENT (mA)
Line Regulation
IOUT=10mA
0.30
Steady State
IOUT=0mA
0.20
0.10
0.00
-0.10
VSW
20V/div
VOUT/AC
20mV/div
-0.20
IINDUCTOR
100mA/div
-0.30
4.5 4.6 4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 5.5
INPUT VOLTAGE (V)
2us/div
Steady State
IOUT=10mA
VSW
20V/div
VOUT/AC
50mV/div
IINDUCTOR
100mA/div
2us/div
VIN Power On
IOUT=10mA
VSW
20V/div
VIN
2V/div
VOUT
20V/div
IINDUCTOR
200mA/div
1ms/div
VIN Power Off
IOUT=10mA
VSW
20V/div
VIN
2V/div
VOUT
20V/div
IINDUCTOR
200mA/div
2ms/div
EN Power On
IOUT=10mA
VSW
20V/div
VEN
5V/div
VOUT
20V/div
IINDUCTOR
200mA/div
200us/div
MP3217 Rev. 0.91
10/15/2009
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet MP3217.PDF ] | |
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