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LQH4C100K04 Datasheet(PDF) 6 Page - Monolithic Power Systems

Part # LQH4C100K04
Description  1.6MHz Synchronous Step-Down plus 200mA LDO
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

LQH4C100K04 Datasheet(HTML) 6 Page - Monolithic Power Systems

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MP2101 – 1.6MHz SYNCHRONOUS STEP-DOWN PLUS 200mA LDO
MP2101 Rev. 1.0
www.MonolithicPower.com
6
8/18/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
TM
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.
PWROK Off vs
VOUT1 Shorted
EN = 4V, IOUT1 = 0.3A,
IOUT2 = 0.1A Resistive Load
PWROK Off vs
VOUT2 Shorted
EN = 4V, IOUT1 = 0.3A,
IOUT2 = 0.1A Resistive Load
Over Current Protection
IOUT1 = 0.3A Resistive Load
VIN
2V/div.
VOUT1
2V/div.
VOUT2
1V/div.
PWROK
2V/div.
VOUT1
1V/div.
VOUT2
1V/div.
VOUT1
0.1V/div.
IL
0.5A/div.
VOUT2
50mV/div.
IOUT2
0.1A/div.
VOUT2
1V/div.
IOUT2
0.1A/div.
PWROK
2V/div.
VOUT1
1V/div.
VOUT2
1V/div.
VOUT1
2V/div.
VSW
5V/div.
IL
0.5A/div.
VIN
2V/div.
VOUT1
1V/div.
VOUT2
1V/div.
VOUT1
10mV/div.
VSW
2V/div.
IL
0.5A/div.
Input Ramp Up
EN = 4V, IOUT1 = 0.3A,
IOUT2 = 0.1A Resistive Load
1ms/div.
Input Ramp Down
EN = 4V, IOUT1 = 0.3A,
IOUT2 = 0.1A Resistive Load
400ns/div.
Heavy Load Ripple
EN1 = VIN = 5V,
IOUT1 = 0.8A Resistive Load
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


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