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MP2229 датащи(PDF) 4 Page - Monolithic Power Systems

номер детали MP2229
подробное описание детали  High Efficiency 21V, 6A Synchronous Step-Down Converter with External Sync, Low-Power Mode, and External Soft-Start
PDF  22 Pages
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производитель  MPS [Monolithic Power Systems]
домашняя страница  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2229 датащи(HTML) 4 Page - Monolithic Power Systems

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MP2229 – 21V, 6A SYNCHRONOUS STEP-DOWN CONVERTER
MP2229 Rev. 1.0
www.MonolithicPower.com
4
2/12/2015
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
(6), typical value is tested at TJ=+25°C, unless otherwise noted.
Parameters
Symbol
Condition
Min
Typ
Max
Units
Supply Current (Shutdown)
IS
VEN = 0V,TJ=25°C
8.5
12
μA
Supply Current (Quiescent)
IQ
VEN = 2V, VFB = 0.7V
400
500
μA
HS Switch-On Resistance
HSRDS-ON
VBST-SW=5V
40
mΩ
LS Switch-On Resistance
LSRDS-ON
VCC=5V
18
mΩ
Switch Leakage
SWLKG
VEN = 0V, VSW = 0V or
12V, TJ=25°C
1
μA
Current Limit
(7)
ILIMIT
Duty=40%
7.5
10.5
A
RSET=30k
380
500
610
kHz
RSET=51k
200
300
380
kHz
Oscillator Frequency
fSW
RSET=6.7k
1400
1800
2100
kHz
Maximum Duty Cycle
DMAX
VFB = 500mV
90
95
%
Minimum On Time
(8)
TON
50
ns
Sync Frequency Range
fSYNC
0.3
2
MHz
Foldback Frequency
fFOLD
VFB = 100mV
0.5
fSW
TJ = 25°C
594
600
606
mV
Feedback Voltage
VFB
TJ=-40°C to +125°C
591
600
609
mV
Feedback Current
IFB
VFB = 650mV
50
nA
EN Falling Threshold
VEN-Falling
0.98
1.2
1.34
V
EN Rising Threshold
VEN-Rising
1.28
1.46
1.65
V
EN Pull-Up Current
IEN
1
2.3
3.6
μA
VIN
Under-Voltage
Lockout
Threshold Rising
INUVVth
3.85
4.1
4.35
V
VIN
Under-Voltage
Lockout
Threshold Hysteresis
INUVHYS
600
mV
VCC Regulator
VCC
5
V
VCC Load Regulation
ICC=5mA
1
%
Soft-Start Current
ISS
7
10
13
μA
Thermal Shutdown
(8)
TSD
150
°C
Thermal Shutdown Hysteresis
(8)
TSD-HYS
30
°C
Note:
6) Not tested in production. Guaranteed by over-temperature correlation.
7) Guaranteed by engineering sample characterization.
8) Guaranteed by design.



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