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MP38873DL Datasheet(PDF) 6 Page - Monolithic Power Systems

Part # MP38873DL
Description  15A, 16V, High Frequency Step-Down Converter with Synchronous Gate Driver
PDF  14 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP38873DL Datasheet(HTML) 6 Page - Monolithic Power Systems

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MP38873 – 15A, 16V, HIGH FREQUENCY STEP-DOWN WITH SYNCHRONOUS GATE DRIVER
MP38873 Rev. 0.9
www.MonolithicPower.com
6
9/17/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN=12V, VOUT=1.2V, L=0.72uH, TA = +25ºC, unless otherwise noted.
Output Ripple
100us/div
400us/div
1us/div
2us/div
2us/div
Two Phase Steady
State Waveform
Two Phase Transient
Response
Input Ripple
IOUT=15A
IOUT=30A
IOUT=15A
INPUT VOLTAGE(V)
Case Temperature vs.
Output Current
IOUT=3A - 15A
Enabled Supply Current vs.
Input Voltage
VOUT= 1.2V, IOUT=0A
I_inductor
10A/div
I_inductor
10A/div
I_inductor
10A/div
I_inductor
5A/div
I_inductor
10A/div
IOUT=0A
IOUT=1A - 20A, 1A/us
Output Short Circuit
I_inductor
10A/div
8
18
28
38
48
58
68
78
88
34 56 789 10 11 1213 1415 16
OUTPUT CURRENT(A)
Vsw
10V/div
Vsw
10V/div
Vsw
10V/div
Vo
1V/div
Vo/AC
50mV/div
Vo/AC
50mV/div
Vin/AC
50mV/div
Vsw
10V/div
Vsw
10V/div
Disabled Supply Current
vs. Input Voltage
VOUT=1.2V, IOUT=0A
INPUT VOLTAGE(V)
VOUT (V)
5
7
9
11
13
15
17
19
21
1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6
975
985
995
1005
1015
1025
1035
1045
1055
1065
1075
1085
5 6 7 8 9 10 11121314151617
-0.1
-0.05
0
0.05
0.1
0.15
0.2
0.25
0.3
4 5 6 7 8 9 10 11121314151617
Vin=5V, 400kHz
Vin=12V, 400kHz



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