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MP2233 Scheda tecnica(PDF) 3 Page - Monolithic Power Systems

Il numero della parte MP2233
Spiegazioni elettronici  High-Efficiency, 3A, 16V, 1.4MHz Synchronous, Step-Down Converter
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Produttore elettronici  MPS [Monolithic Power Systems]
Homepage  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

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MP2233 – SYNCHRONOUS, STEP-DOWN CONVERTER WITH INTERNAL MOSFETS
MP2233 Rev. 1.01
www.MonolithicPower.com
3
12/6/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 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
1
μA
Supply Current (Quiescent)
Iq
VEN = 2V, VFB = 1V
0.8
1
mA
HS-Switch ON Resistance
HSRDS-ON VBST-SW=5V
80
mΩ
LS-Switch ON Resistance
LSRDS-ON VCC=5V
30
mΩ
Switch Leakage
SWLKG
VEN = 0V, VSW =12V
1
μA
Current Limit
(6)
ILIMIT
Under 40% Duty Cycle
4
4.6
A
Oscillator Frequency
fSW
1100
1400
1700
kHz
Fold-back Frequency
fFB
VFB= 0V
0.15
fSW
Maximum Duty Cycle
(6)
DMAX
VFB=700mV
89
%
Minimum ON Time
(6)
τON_MIN
40
ns
Sync Frequency Range
fSYNC
0.3
3
MHz
TA=25°C
784
800
816
Feedback Voltage
VFB
-40°C<TA<85°C
(7)
780
800
820
mV
Feedback Current
IFB
VFB=820mV
10
50
nA
EN Rising Threshold
VEN_RISING
1.2
1.4
1.6
V
EN Falling Threshold
VEN_FALLING
1.1
1.25
1.4
V
VEN=2V
2
μA
EN Input Current
IEN
VEN=0
0
μA
EN Turn Off Delay
ENTd-off
5
μs
VIN Under-Voltage Lockout
Threshold-Rising
INUVVth
3.7
3.9
4.1
V
VIN Under-Voltage Lockout
Threshold-Hysteresis
INUVHYS
650
mV
VCC Regulator
VCC
5
V
VCC Load Regulation
ICC=5mA
3
%
Soft-Start Current
ISS
10
14
18
μA
Thermal Shutdown
(6)
150
°C
Thermal Hysteresis
(6)
20
°C
Notes:
6) Guaranteed by design.
7) Not tested in production and guaranteed by over-temperature correlation.


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