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MP2372DN датащи(PDF) 3 Page - Monolithic Power Systems

номер детали MP2372DN
подробное описание детали  3A, 28V, 925KHz Step-Down Converter
PDF  13 Pages
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производитель  MPS [Monolithic Power Systems]
домашняя страница  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2372DN датащи(HTML) 3 Page - Monolithic Power Systems

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MP2372 – 3A, 28V, 925KHZ STEP-DOWN CONVERTER
MP2372 Rev. 0.92
www.MonolithicPower.com
3
12/22/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TA = +25°C, unless otherwise noted.
Parameters
Symbol Condition
Min
Typ
Max Units
Shutdown Supply Current
Isupply
VEN = 0V
20
30
μA
Quiesent Supply Current
Iq
VEN = 3V, VFB =1.4V
1.3
1.5
mA
Feedback Voltage
VFB
4.5V
≤ VIN ≤ 28V,
VCOMP < 2V
0.892 0.920 0.948
V
Error Amplifier Voltage Gain
AVEA
400
V/V
Error Amplifier Transconductance
GEA
ΔICOMP = ±10μA
690
μA/V
High-Side Switch-On Resistance
RDS(ON)1
100
mΩ
Low-Side Switch-On Resistance
RDS(ON)2
10
Ω
High-Side Switch Leakage Current
VEN = 0V, VSW = 0V
0.1
10
μA
Short Circuit Current Limit
6.5
A
Current Sense to COMP Transconductance
GCS
6.0
A/V
Oscillation Frequency
fS
925
KHz
Short Circuit Oscillation Frequency
VFB = 0V
110
KHz
Maximum Duty Cycle
DMAX
VFB = 0.8V
76
80
99
%
Minimum On Time
TON
130
ns
EN Threshold Voltage
0.9
1.2
1.5
V
Enable Pull Up Current
VEN = 0V
0.9
1.6
2.3
μA
Under Voltage Lockout Threshold Rising
2.3
2.6
2.9
V
Under Voltage Lockout Threshold Hysteresis
210
mV
Soft-Start Period
CSS = 0.1μF L=10μH
CO=47μF IO=3A(CC)
10
ms
Thermal Shutdown
160
°C



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