MP2101 Просмотр технического описания (PDF) - Monolithic Power Systems
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MP2101 Datasheet PDF : 12 Pages
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TM
MP2101 – 1.6MHz SYNCHRONOUS STEP-DOWN PLUS 200mA LDO
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 3.6V, VOUT1 = 1.8V, VOUT2 = 1.2V, CIN1 = 4.7 µF, CIN2 = 1µF, CO1 = 10µF, CO2 = 1µF, L = 2.2µH,
TA = +25°C, unless otherwise noted.
Input Ramp Up
EN = 4V, IOUT1 = 0.3A,
IOUT2 = 0.1A Resistive Load
VIN
2V/div.
VOUT1
2V/div.
VOUT2
1V/div.
Input Ramp Down
EN = 4V, IOUT1 = 0.3A,
IOUT2 = 0.1A Resistive Load
VIN
2V/div.
VOUT1
1V/div.
VOUT2
1V/div.
Heavy Load Ripple
EN1 = VIN = 5V,
IOUT1 = 0.8A Resistive Load
VOUT1
10mV/div.
VSW
2V/div.
IL
0.5A/div.
1ms/div.
400ns/div.
PWROK Off vs
VOUT1 Shorted
EN = 4V, IOUT1 = 0.3A,
IOUT2 = 0.1A Resistive Load
PWROK
2V/div.
VOUT1
1V/div.
VOUT2
1V/div.
PWROK Off vs
VOUT2 Shorted
EN = 4V, IOUT1 = 0.3A,
IOUT2 = 0.1A Resistive Load
PWROK
2V/div.
VOUT1
1V/div.
VOUT2
1V/div.
Over Current Protection
IOUT1 = 0.3A Resistive Load
VOUT1
2V/div.
VSW
5V/div.
IL
0.5A/div.
Switcher Load Transient
IOUT1 = 0.8A Resistive Load
LDO Load Transients
VIN2 = 3.3V, VOUT2 = 1.2V,
IOUT2 = 0.02A to 0.15A Resistive Load
LDO Over Current
Protection
VIN2 = 3.3V, VOUT2 = 2.5V
VOUT1
0.1V/div.
IL
0.5A/div.
VOUT2
50mV/div.
IOUT2
0.1A/div.
VOUT2
1V/div.
IOUT2
0.1A/div.
MP2101 Rev. 1.0
www.MonolithicPower.com
6
8/18/2006
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