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MPQ8633B Datasheet(PDF) 6 Page - Monolithic Power Systems

Part # MPQ8633B
Description  16V, 20A, Synchronous, Step-Down Converter with Adjustable Current Limit, Programmable Frequency, and Voltage Tracking
PDF  21 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MPQ8633B Datasheet(HTML) 6 Page - Monolithic Power Systems

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MPQ8633B – 16V, 20A, SYNCHRONOUS, STEP-DOWN CONVERTER
MPQ8633B Rev. 1.01
www.MonolithicPower.com
6
8/3/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TJ = -40°C to +125°C, unless otherwise noted.
Parameters
Symbol
Condition
Min
Typ
Max
Units
Supply Current
Supply current (shutdown)
IIN
VEN = 0V
0
10
μA
Supply current (quiescent)
IIN
VEN = 2V, VFB = 0.62V
650
850
μA
MOSFET
Switch leakage
SWLKG HS
VEN = 0V, VSW = 0V
0
10
μA
SWLKG LS
VEN = 0V, VSW = 12V
0
30
Current Limit
Current limit threshold
VLIM
1.15
1.2
1.25
V
ICS to IOUT ratio
ICS/IOUT
IOUT ≥ 2A
9
10
11
μA/A
Low-side negative current limit
ILIM NEG
-10
A
Negative current limit time out
6)
tNCL Timer
200
ns
Switching Frequency
Switching frequency
(7)
fSW
MODE = GND, IOUT = 0A,
VOUT = 1V
480
600
720
kHz
MODE = 30.1kΩ, IOUT = 0A,
VOUT = 1V
680
800
920
kHz
MODE = 60.4 kΩ, IOUT = 0A,
VOUT = 1V
850
1000
1150
kHz
Minimum on time
(6)
TON MIN
VFB = 500mV
50
ns
Minimum off time
(6)
TOFF MIN
VFB = 500mV
180
ns
Over-Voltage and Under-Voltage Protection
OVP threshold
VOVP
113%
116%
119%
VREF
UVP threshold
VUVP
77%
80%
83%
VREF
Feedback Voltage and Soft Start
Feedback voltage
VREF
TJ = -40°C to +125°C
594
600
606
mV
TJ = 0°C to +70°C
597
600
603
mV
TRK/REF sourcing current
ITRACK Source VTRK/REF = 0V
42
μA
TRK/REF sinking current
ITRACK Sink
VTRK/REF = 1V
12
μA
Soft-start time
tSS
CTRACK = 1nF, TJ = +25°C
0.75
1
1.25
ms
Error Amplifier
Error amplifier offset
VOS
-3
0
3
mV
Feedback current
IFB
VFB = REF
50
100
nA



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