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MP9151GD 数据表(PDF) 3 Page - Monolithic Power Systems

部件名 MP9151GD
功能描述  20V, 4A Synchronous Step-Down Coverter
PDF  19 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP9151GD 数据表(HTML) 3 Page - Monolithic Power Systems

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MP9151
– 20V, 4A SYNCHRONOUS STEP-DOWN CONVERTER
MP9151 Rev. 1.0
www.MonolithicPower.com
3
3/20/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 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
10
15
μA
Supply Current (Quiescent)
IIN
VEN = 2V, VFB = 1V
0.7
mA
HS Switch On Resistance
HSRDS-ON
60
mΩ
LS Switch On Resistance
LSRDS-ON
30
mΩ
Switch Leakage
SWLKG
VEN = 0V, VSW = 0V or
12V
0
1
μA
Current Limit
ILIMIT
Duty=40%
6
7
A
Oscillator Frequency
FSW
Rset=17.8k
Ω
560
800
1040
kHz
Fold-back Frequency
FFB
VFB = 100mV
0.25
fSW
Maximum Duty Cycle
DMAX
VFB = 700mV,
fSW=800kHz
90
95
%
Minimum On Time
(6)
TON_MIN
40
ns
Feedback Voltage
VFB
779
795
811
mV
Feedback Current
IFB
VFB = 800mV
10
50
nA
EN Input Low Voltage
VILEN
0.9
1.12
1.3
V
EN Input High Voltage
VIHEN
1.3
1.55
1.9
V
EN pin pull-up Current
IEN
2
μA
Power Good Rising Threshold
PGH
FB
respect
to
the
regulation
90
%
Power Good Falling Threshold
PGL
80
%
Power Good Sink Current
Capability
VPGL
Sink 1mA
0.1
V
VIN Under Voltage Lockout
Threshold Rising
INUVVth
3.85
4.1
4.35
V
VIN
Under
Voltage
Lockout
Threshold Hysteresis
INUVHYS
850
mV
VCC Regulator
VCC
5
V
VCC Load Regulation
Icc=5mA
1
%
Thermal Shutdown
(6)
TSD
150
°C
Thermal Shutdown Hysteresis
(6)
TSD-HYS
30
°C
Soft Start Current
ISS
8
μA
Note:
6) Guaranteed by design.



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