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MP2321 датащи(PDF) 4 Page - Monolithic Power Systems

номер детали MP2321
подробное описание детали  19V, 2A, 40uA IQ, High-Efficiency, Constant-On-Time, Step-Down Converter in a QFN (2mmx3mm) Package
PDF  24 Pages
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производитель  MPS [Monolithic Power Systems]
домашняя страница  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2321 датащи(HTML) 4 Page - Monolithic Power Systems

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MP2321 – 19V, 2A, LOW IQ, STEP-DOWN CONVERTER
MP2321 Rev. 1.0
www.MonolithicPower.com
4
10/26/2016
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TJ = -40°C to +125°C (7), typical value is tested at TJ = +25°C, unless otherwise
noted.
Parameters
Symbol
Condition
Min
Typ
Max
Units
Supply current (shutdown)
IIN
VEN = 0V
0.1
1
μA
Supply current (quiescent)
IQ
VEN = 5V, VFB = 0.7V,
TJ = 25°C
40
55
μA
VIN under-voltage lockout
threshold rising
INUVVth
3.5
3.7
3.9
V
VIN under-voltage lockout
threshold hysteresis
INUVHYS
200
mV
HS switch on resistance
HSRDS(ON)
110
mΩ
LS switch on resistance
LSRDS(ON)
40
mΩ
Switch leakage
SWLKG
VEN = 0V, VSW = 0V or 12V
0
1
μA
High-side MOSFET current limit
ILIMIT
Duty = 40%, TJ = -40°C to
+125°C
2.7
4
6
A
Duty = 40%, TJ = 25°C
3
4
6
Low-Side MOSFET current limit
ILIMIT
PWM mode, sink current
1.5
A
One-shot on timer
(8)
TON
RREQ = 180k from
FREQ/MODE to GND
230
ns
Minimum on time
(8)
TON_min
90
ns
Minimum off time
TOFF min
150
ns
Feedback voltage
VFB
TJ = -40°C to +125°C
591
600
609
mV
TJ = 25°C
594
600
606
Feedback current
IFB
VFB = 700mV
10
50
nA
Soft-start current
ISS
4
8
11
μA
EN input high voltage
1.6
V
EN input low voltage
0.4
V
EN input current
IEN
VEN = 2V
2
μA
VEN = 0V
0
Power good UV rising threshold
PGUVVth Hi
0.9
VFB
Power good UV falling threshold
PGUVVth Lo
0.85
VFB
Power good OV rising threshold
PGOVVth Hi
1.2
1.3
1.4
VFB
Power good OV falling threshold
PGOVVth Lo
1
1.1
1.2
VFB
Power good delay
PGTd
140
μs
Power good sink current
capability
VPG
Sink 1mA
0.4
V
Power good leakage current
IPG LEAK
VPG = 3.3V
50
nA
Thermal shutdown
(8)
TSD
150
°C
Thermal shutdown hysteresis
(8)
TSD_HYS
20
°C
NOTES:
7) Not tested in production. Guaranteed by over-temperature correlation.
8) Not tested in production. Guaranteed by design and engineering sample characterization test.



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