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MP8771 Datasheet(PDF) 4 Page - Monolithic Power Systems

Part # MP8771
Description  17V, 10A, 700kHz, High-Efficiency, Synchronous, Step-Down Converter
PDF  23 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP8771 Datasheet(HTML) 4 Page - Monolithic Power Systems

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MP8771
– 17V, 10A, SYNCHRONOUS, STEP-DOWN CONVERTER
MP8771 Rev. 1.0
www.MonolithicPower.com
4
1/15/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (5)
VIN = 12V, TJ = -40°C to +125°C, typical value is tested at TJ = +25°C, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Input voltage range
VIN
4.5
17
V
Supply Current
Supply current (shutdown)
IIN
VEN = 0V
5
µA
Supply current (quiescent)
IQ
VEN = 2V, VFB = 0.65V
100
150
µA
MOSFET
HS switch-on resistance
HSRDS(ON) VBST-SW = 3.3V
17
m
Ω
LS switch-on resistance
LSRDS(ON)
VCC = 3.3V
8
mΩ
Switch leakage
SWLKG
VEN = 0V, VSW = 17V, TJ = 25°C
1
µA
Current Limit and ZCD
Valley current limit
ILIMIT_VY
10
12
A
Short hiccup duty cycle (6)
DHICCUP
10
%
ZCD
IZCD
200
mA
Switching Frequency and Minimum On/Off Timer
Switching frequency
Fs
600
700
800
kHz
Minimum on time (6)
TOn MIN
50
ns
Minimum off time (6)
TOff MIN
100
ns
Reference and Soft Start
Feedback voltage
VFB
TJ = 25°C
594
600
606
mV
TJ = -40°C to +125°C
591
600
609
Feedback current
IFB
VFB = 700mV
10
50
nA
Soft-start current
ISS_START
4
6
8
µA
Enable and UVLO
EN rising threshold
VEN RISING
1.1
1.25
1.4
V
EN falling threshold
VEN FALLING
0.9
1
1.1
V
EN pull-down resistor
REN_PD
1.2
MΩ
VCC
VCC under-voltage lockout
threshold rising
VCCVth
2.6
2.8
3
V
VCC under-voltage lockout
threshold
VCCHYS
350
mV
VCC regulator
VCC
3.4
V
VCC load regulation
RegVCC
ICC = 5mA
3
%



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