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MP2225 датащи(PDF) 4 Page - Monolithic Power Systems

номер детали MP2225
подробное описание детали  High-Efficiency, 5A, 18V, 500kHz Synchronous, Step-Down Converter
PDF  20 Pages
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производитель  MPS [Monolithic Power Systems]
домашняя страница  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2225 датащи(HTML) 4 Page - Monolithic Power Systems

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MP2225 –18V/5A SYNCHRONOUS STEP-DOWN CONVERTER
MP2225 Rev. 1.01
www.MonolithicPower.com
4
4/13/2016
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TJ = -40°C to +125°C
(6), Typical value is tested at TJ = +25°C, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Supply Current (Shutdown)
IIN
VEN = 0V,TJ =25°C
1
μA
Supply Current (Shutdown)
IIN
VEN = 0V
3
μA
Supply Current (Quiescent)
IQ
VEN = 2V, VFB = 0.7V
320
400
μA
HS Switch-On Resistance
HSRDS-ON VBST-SW=5V
47
mΩ
LS Switch-On Resistance
LSRDS-ON
VCC =5V
18
mΩ
Switch Leakage
SWLKG
VEN = 0V, VSW =12V, TJ
=25°C
1
μA
Current Limit
(7)
ILIMIT
Under 40% Duty Cycle
6.5
9
A
Oscillator Frequency
FSW
VFB=0.48V
380
500
580
kHz
Fold-Back Frequency
FFB
VFB<300mV
0.56
FSW
Maximum Duty Cycle
DMAX
VFB=500mV
90
95
%
Minimum On Time
(8)
TON_MIN
50
ns
Sync Frequency Range
FSYNC
0.2
2
MHz
Feedback Voltage
VFB
TJ =25°C
594
600
606
mV
Feedback Voltage
VFB
591
600
609
mV
Feedback Current
IFB
VFB=620mV
10
50
nA
EN Rising Threshold
VEN_RISING
1.15
1.4
1.65
V
EN Hysteresis
VEN_HYS
160
mV
VEN=2V
1.85
μA
EN Input Current
IEN
VEN=0
0
μA
EN Turn-Off Delay
ENtd-off
5
10
μs
VIN Under-Voltage Lockout
Threshold-Rising
INUVVth
3.85
4.1
4.35
V
VIN Under-Voltage Lockout
Threshold-Hysteresis
INUVHYS
735
mV
Soft-Start Time
TSS
10% to 90% Output Voltage
2.4
ms
Thermal Shutdown
(8)
TSD
150
°C
Thermal Hysteresis
(8)
TSD_HYS
20
°C
Notes:
6) Not tested in production. Guaranteed by over-temperature correlation.
7) Guaranteed by engineering sample characterization.
8) Guaranteed by design.



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