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MP1583DN датащи(PDF) 3 Page - Monolithic Power Systems

номер детали MP1583DN
подробное описание детали  3A, 23V, 385KHz 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

MP1583DN датащи(HTML) 3 Page - Monolithic Power Systems

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MP1583 – 3A, 23V, 385KHz STEP-DOWN CONVERTER
MP1583 Rev. 3.1
www.MonolithicPower.com
3
6/20/2011
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TA = +25°C, unless otherwise noted.
Parameters
Symbol Condition
Min
Typ
Max
Units
Shutdown Supply Current
VEN = 0V
20
30
µA
Supply Current
VEN = 2.8V, VFB =1.4V
1.0
1.2
mA
Feedback Voltage
VFB
4.75V
≤ VIN ≤ 23V
1.194 1.222 1.250
V
Error Amplifier Voltage Gain
AVEA
400
V/V
Error Amplifier Transconductance
GEA
ΔICOMP = ±10μA
500
800
1120
µA/V
High-Side Switch On-Resistance
RDS(ON)1
0.1
Ω
Low-Side Switch On-Resistance
RDS(ON)2
10
Ω
High-Side Switch Leakage Current
VEN = 0V, VSW = 0V
0
10
µA
Current Limit
4.0
4.9
6.0
A
Current Sense to COMP Transconductance
GCS
3.8
A/V
Oscillation Frequency
fS
335
385
435
KHz
Short Circuit Oscillation Frequency
VFB = 0V
25
40
55
KHz
Maximum Duty Cycle
DMAX
VFB = 1.0V
90
%
Minimum Duty Cycle
VFB = 1.5V
0
%
EN Shutdown Threshold Voltage
0.9
1.2
1.5
V
Enable Pull Up Current
VEN = 0V
1.1
1.8
2.5
µA
EN UVLO Threshold
VEN Rising
2.37
2.54
2.71
V
EN UVLO Threshold Hysteresis
210
mV
Soft-Start Period
CSS = 0.1µF
10
ms
Thermal Shutdown
160
°C



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