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MP8772 数据表(PDF) 4 Page - Monolithic Power Systems

部件名 MP8772
功能描述  12A, 17V, 700kHz Synchronous Step-down Converter with PG and External Soft Start in 3x3mm QFN package
PDF  23 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP8772 数据表(HTML) 4 Page - Monolithic Power Systems

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MP8772
– 17V, 12A, SYNCHRONOUS, STEP-DOWN CONVERTER
MP8772 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
16
m
Ω
LS switch on resistance
LSRDS(ON)
VCC = 3.3V
5.5
mΩ
Switch leakage
SWLKG
VEN = 0V, VSW = 17V, TJ = 25°C
1
µA
Current Limit and ZCD
Valley current limit
ILIMIT_VY
12
14
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
3.0
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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