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MP2235S Datasheet(PDF) 4 Page - Monolithic Power Systems

Part # MP2235S
Description  High-Efficiency, 3 A, 16 V, 800 kHz Synchronous Step-Down Converter
PDF  19 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2235S Datasheet(HTML) 4 Page - Monolithic Power Systems

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MP2235S –3 A, 16 V, 800 kHz SYNCHRONOUS STEP-DOWN CONVERTER
MP2235S Rev.1.0
www.MonolithicPower.com
4
4/15/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12 V, TJ = -40°C to + 125°C
(6), typical value is tested at TJ = +25°C, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
VEN = 0 V, TJ= + 25°C
1
μA
Supply current (shutdown)
IIN
VEN = 0 V,
TJ = -40°C to + 125°C
5
μA
Supply current (quiescent)
Iq
VEN = 2 V, VFB = 1 V
0.5
1
mA
HS switch on resistance
HSRDS-ON VBST-SW = 5 V
120
mΩ
LS switch on resistance
LSRDS-ON
VCC = 5 V
50
mΩ
Switch leakage
SWLKG
VEN = 0 V, VSW = 12 V or 0 V
1
μA
Current limit
ILIMIT
Under 40% duty cycle
4
5
A
VFB = 0.75 V,TJ = + 25°C
620
800
900
kHz
Oscillator frequency
fSW
VFB = 0.75 V,
TJ = -40°C to +125°C
550
800
900
kHz
Foldback frequency
fFB
VFB < 400 mV
0.5
fSW
Maximum duty cycle
DMAX
VFB = 700 mV
92
%
Minimum on time
(7)
τON_MIN
40
ns
Sync frequency range
fSYNC
0.3
2
MHz
TJ = 25°C
788
804
820
mV
Feedback voltage
VFB
TJ = -40°C to +125°C
784
804
824
mV
Feedback current
IFB
VFB = 830 mV
10
50
nA
EN rising threshold
VEN_RISING
1
1.4
1.8
V
EN hysteresis
VEN_Hysteresis
150
mV
VEN = 2 V
2
μA
EN input current
IEN
VEN = 0 V
0
μA
EN turn-off delay
ENtd-off
10
μs
VIN under-voltage lockout
threshold—rising
INUVVth
3.5
3.9
4.3
V
VIN under-voltage lockout
threshold—hysteresis
INUVHYS
700
mV
VCC regulator
VCC
4.6
5
5.4
V
VCC load regulation
ICC = 5 mA
2
%
Soft-start current
ISS
8
11
14
μA
Thermal shutdown
(7)
150
°C
Thermal hysteresis
(7)
20
°C
NOTES:
6) Not tested in production. Guaranteed by over-temperature correlation.
7) Guaranteed by design.



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