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MP1475S Datasheet(PDF) 4 Page - Monolithic Power Systems

No. de pieza MP1475S
Descripción Electrónicos  High-Efficiency, 3A, 16V, 500kHz Synchronous, Step-Down Converter
PDF  19 Pages
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Fabricante Electrónico  MPS [Monolithic Power Systems]
Página de inicio  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP1475S Datasheet(HTML) 4 Page - Monolithic Power Systems

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MP1475S – HIGH-EFFICIENCY, 3A, 16V, 500kHz SYNCHRONOUS STEP-DOWN CONVERTER
MP1475S Rev. 1.0
www.MonolithicPower.com
4
1/8/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TJ = -40°C to +125°C, unless otherwise noted. Typical value is tested at TJ=+25°C.
Parameter
Symbol Condition
Min
Typ
Max
Units
Supply Current (Shutdown)
IIN
VEN = 0V
2
μA
Supply Current (Quiescent)
Iq
VEN = 2V, VFB = 1V
0.5
1
mA
HS Switch-On Resistance
HSRDS-ON VBST-SW=5V
120
mΩ
LS Switch-On Resistance
LSRDS-ON VCC =5V
50
mΩ
Switch Leakage
SWLKG
VEN = 0V, VSW =12V or 0V
1
μA
Current Limit
(6)
ILIMIT
Under 40%
Duty Cycle
TJ=+25°C
3.7
5
A
TJ=-40°C to +125°C
3.5
A
Oscillator Frequency
fSW
VFB=0.75V
TJ=+25°C
410
500
630
kHz
TJ=-40°C to +125°C
350
650
kHz
Foldback Frequency
fFB
VFB<400mV
0.5
fSW
Maximum Duty Cycle
DMAX
VFB=700mV
90
95
%
Minimum On Time
(6)
TON-MIN
40
ns
Sync Frequency Range
fSYNC
0.3
2
MHz
Feedback Voltage
VFB
TJ =25°C
791
807
823
mV
-40°C<TJ<+125°C
(7)
787
807
827
Feedback Current
IFB
VFB=830mV
10
50
nA
EN Rising Threshold
VEN-RISING
1
1.4
1.75
V
EN Falling Threshold
VEN-FALLING
0.9
1.25
1.6
V
EN Input Current
IEN
VEN=2V
2
μA
VEN=0
0
μA
EN Turn-Off Delay
ENtd-off
8
μs
Power-Good Rising Threshold
PGvth-Hi
0.9
VFB
Power-Good Falling Threshold
PGvth-Lo
0.85
VFB
Power-Good Delay
PGTd
0.6
ms
Power-Good Sink-Current
Capability
VPG
Sink 2mA
0.4
V
Power-Good Leakage Current
IPG-LEAK
1
μA
VIN Under-Voltage Lockout
Threshold—Rising
INUVVth
3.6
3.9
4.3
V
VIN Under-Voltage Lockout
Threshold—Hysteresis
INUVHYS
700
mV
VCC Regulator
VCC
5
V
VCC Load Regulation
ICC=5mA
2
%
Soft-Start Period
TSS
Vo from 10% to 90%
1.2
ms
Thermal Shutdown
(6)
TSD
150
°C
Thermal Hysteresis
(6)
TSD HYS
20
°C
Notes:
6) Guaranteed by design.
7) Not tested in production; guaranteed by over-temperature correlation.



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