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MP1492DS датащи(PDF) 3 Page - Monolithic Power Systems

номер детали MP1492DS
подробное описание детали  2A, 4.2V-16V Input, Fast Transient Synchronous Step-down Converter
PDF  18 Pages
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производитель  MPS [Monolithic Power Systems]
домашняя страница  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP1492DS датащи(HTML) 3 Page - Monolithic Power Systems

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MP1492 – 2A, 4.2V-16V INPUT, FAST TRANSIENT SYNCHRONOUS STEP-DOWN CONVERTER
MP1492 Rev. 1.1
www.MonolithicPower.com
3
3/13/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TA = +25°C, unless otherwise noted.
Parameters
Symbol
Condition
Min
Typ
Max
Units
Supply Current (Shutdown)
IIN
VEN=0V
5
μA
Supply Current (Quiescent, Not
Switching)
IIN
VEN=2V, VFB=0.9V
1
mA
HS Switch On Resistance
HSRDS-ON
120
mΩ
LS Switch On Resistance
LSRDS-ON
70
mΩ
Switch Leakage
SWLKG
VEN=0V [VSW=0V or 12V]
0
10
μA
Current Limit
(5)
ILIMIT
After Soft-Start
Time-out
3.0
A
One-Shot On Time
TON
R7=300kΩ,VOUT=1.2V
250
ns
Minimum Off Time
TOFF
130
150
ns
Fold-back Off Time
TFB
ILIM=1
1.25
μs
OCP hold-off time
TOC
ILIM=1
50
μs
Feedback Voltage
VFB
789
805
821
mV
Feedback Current
IFB
VFB=800mV
10
50
nA
Soft Start Time
TSS
1
ms
EN Rising Threshold
VILEN
1.05
1.35
1.6
V
EN Threshold Hysteresis
VILEN
500
mV
VEN=2V
2
EN Input Current
IEN
VEN=0V
0
μA
VIN
Under
Voltage
Lockout
Threshold Rising
INUVVth
3.1
V
VIN
Under
Voltage
Lockout
Threshold Hysteresis
INUVHYS
300
mV
Thermal Shutdown
150
°C
Thermal Shutdown Hysteresis
25
°C
Note:
5) Guaranteed by design and characterization..



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