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MP2319 Datasheet(PDF) 4 Page - Monolithic Power Systems

Part # MP2319
Description  3A, 18V, 650kHz, High-Efficiency, Synchronous, Step-Down Converter in 8-Pin TSOT23
PDF  20 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2319 Datasheet(HTML) 4 Page - Monolithic Power Systems

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MP2319
– 18V, 3A, SYNCHRONOUS, STEP-DOWN CONVERTER
MP2319 Rev.1.0
www.MonolithicPower.com
4
6/29/2016
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
(5), unless otherwise noted. Typical value is based on the average
value when TJ = 25°C.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Supply Current
Supply current (shutdown)
IIN
VEN = 0V
1.2
5
µA
Supply current (quiescent)
Iq
VEN = 2V, VFB = 0.9V
270
350
µA
MOSFET
HS switch on resistance
HSRDS(ON) VBST - SW = 5V
105
mΩ
LS switch on resistance
LSRDS(ON) VCC = 5V
57
mΩ
Switch leakage
SWLKG
VEN = 0V, VSW = 12V/0V
1
µA
Current Limit and ZCD
Valley current limit
ILIMIT_VY
Duty = 40%
2.8
3.5
A
ZCD
IZCD
50
mA
Switching Frequency and Minimum On/Off Timer
Switching frequency
Fs
510
650
790
kHz
Minimum on time
(6)
TOn MIN
55
ns
Minimum off time
(6)
TOff MIN
90
ns
Reference and Soft Start
Feedback voltage
VFB
TJ = 25°C
792
800
808
mV
Feedback voltage
VFB
TJ = -40°C to +125°C
788
800
812
mV
Feedback current
IFB
VFB = 820mV
10
50
nA
Soft-start period
tSS
VOUT = 10% to 90%
0.8
ms
Enable (EN) and UVLO
EN rising threshold
VEN RISING
1.22
1.285
1.35
V
EN falling hysteresis
VEN _Hys
140
mV
EN pull-down resistor
REN_PD
1.1
M
Ω
VIN under-voltage lockout
threshold rising
INUVVth
3.4
3.85
4.3
V
VIN under-voltage lockout
threshold hysteresis
INUVHYS
670
mV
VCC
VCC regulator
VCC
5
V
VCC load regulation
ICC = 5mA
3
%
OVP
OVP rising threshold
VOVP1_RISE
1.18
1.22
1.26
VREF
OVP falling threshold
VOVP_FALL
1.025
1.065
1.105
VREF



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