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MP2325 Datasheet(PDF) 3 Page - Monolithic Power Systems

Part # MP2325
Description  High Efficiency 3A, 24V, 500kHz Synchronous Step-Down Converter
PDF  17 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2325 Datasheet(HTML) 3 Page - Monolithic Power Systems

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MP2325
– 24V, 3A SYNC STEP DOWN CONVERTER
MP2325 Rev. 1.0
www.MonolithicPower.com
3
12/4/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TA = 25°C, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Supply Current (Shutdown)
IIN
VEN = 0V
5.5
μA
Supply Current (Quiescent)
Iq
VEN = 2V, VFB = 1V
130
180
240
μA
HS Switch On Resistance
HSRDS-ON VBST-SW=5V
90
mΩ
LS Switch On Resistance
LSRDS-ON VCC=5V
40
mΩ
Switch Leakage
SWLKG
VEN = 0V, VSW =12V
1
μA
Current Limit
(5)
ILIMIT
Duty Cycle=40%
4.5
5.5
6.5
A
Oscillator Frequency
fSW
VFB=750mV
420
500
620
kHz
Fold-back Frequency
fFB
VFB=200mV
0.5
fSW
Maximum Duty Cycle
DMAX
VFB=750mV
90
95
%
Minimum On Time
(5)
TON_MIN
60
ns
Sync Frequency Range
fSYNC
0.2
2
MHz
Feedback Voltage
VFB
TA=25ºC
783
791
799
mV
Feedback Current
IFB
VFB=820mV
10
50
nA
EN Rising Threshold
VEN_RISING
1.2
1.4
1.6
V
EN Hysteresis
VEN_HYS
80
150
220
mV
EN Input Current
IEN
VEN=2V
1.5
2
2.5
μA
VEN=0
0
50
nA
EN Turn Off Delay
ENTd-off
6
10
14
μs
Power Good Rising Threshold
PGVTH-Hi
0.9
VFB
Power Good Falling Threshold
PGVTH-LO
0.85
VFB
Power Good Delay
PGTd
40
μs
Power
Good
Sink
Current
Capability
VPG
Sink 1mA
0.4
V
Power Good Leakage Current
IPG-LEAK
1
μA
VIN Under Voltage Lockout
Threshold-Rising
INUVVth
3.7
3.9
4.1
V
VIN Under Voltage Lockout
Threshold-Hysteresis
INUVHYS
550
650
750
mV
VCC Regulator
VCC
4.65
4.9
5.15
V
VCC Load Regulation
ICC=5mA
0
1
3
%
Soft-Start Period
TSS
0.8
1.5
2.2
ms
Thermal Shutdown
(5)
150
ºC
Thermal Hysteresis
(5)
20
ºC
Notes:
5) Guaranteed by design



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