EV2109DQ-00A Ver la hoja de datos (PDF) - Monolithic Power Systems
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EV2109DQ-00A Datasheet PDF : 8 Pages
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MP2109 – DUAL 1.2MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
VIN1/IN2 = 3.3V, VOUT1 = 1.8V, VOUT2 = 1.2V, L1/2 = 4.7µH, CIN1/IN2 = 4.7µF, COUT1/OUT2 = 10µF, TA = +25°C,
unless otherwise noted.
Efficiency vs
Load Current
100
VOUT1=1.8V
90
80
VOUT2=1.2V
70
60
50
0.0
0.2
0.4
0.6
0.8
LOAD CURRENT (A)
MP2109-TPC01
Feedback Voltage vs
Temperature
0.606
0.604
0.602
0.600
0.598
0.596
0.594
-40 -20 0 +20 +40 +60 +80 +100
TEMPERATURE (°C)
MP2109-TPC02
Load Transient
(IOUT=0mA to 500mA Step)
Medium Load Operation
(IOUT=400mA)
Heavy Load Operation
(IOUT=800mA)
VOUT AC
100mV/div.
IL
0.5A/div.
ILOAD
0.5A/div.
VSW
2V/div.
VOUT AC
20mV/div.
IL
200mA/div.
VSW
2V/div.
VOUT AC
20mV/div.
IL
500mA/div.
MP2109-TPC03
Startup from Shutdown
VEN
2V/div
VOUT
1V/div
400ns/div
MP2109-TPC04
Short Circuit Protection
(No Load)
400ns/div
MP2109-TPC05
Short Circuit Recovery
(No Load)
VOUT
1V/div
VOUT
1V/div
IL
0.5A/div
IL
0.5A/div
IL
0.5A/div
MP2109-TPC06
MP2109-TPC07
MP2109-TPC08
MP2109 Rev.1.4
www.MonolithicPower.com
3
10/16/2006
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© 2006 MPS. All Rights Reserved.
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