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MP2303ADP Datasheet(PDF) 3 Page - Monolithic Power Systems

Part # MP2303ADP
Description  3A, 28V, 360kHz Synchronous Rectified Step-Down Converter
PDF  15 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2303ADP Datasheet(HTML) 3 Page - Monolithic Power Systems

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MP2303A – 3A, 28V, 360kHz SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER
MP2303A Rev.1.1
www.MonolithicPower.com
3
7/25/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (5)
VIN = 12V, TA = +25°C, unless otherwise noted.
Parameter
Symbol Condition
Min
Typ
(5)
Max
Units
Shutdown Supply Current
VEN = 0V
0.3
3.0
μA
Supply Current
VEN = 2.7V, VFB = 1.0V
1.45
1.6
mA
Feedback Voltage
VFB
4.7V
 VIN  28V,
TA = +25°C
0.780
0.800
0.820
V
-40
°C ≤ TA ≤ +85°C
0.765
0.835
V
OVP Threshold Voltage
0.90
0.95
1.00
V
Error Amplifier Voltage Gain
AEA
400
V/V
Error Amplifier Transconductance
GEA
IC = 10μA
550
820
1100
μA/V
High-Side Switch-On Resistance
RDS(ON)1
150
mΩ
Low-Side Switch-On Resistance
RDS(ON)2
80
mΩ
High-Side Switch Leakage Current
VEN = 0V, VSW = 0V
0
10
μA
Upper Switch Current Limit
4.3
6.0
A
Lower Switch Current Limit
From Drain to Source
1.25
A
COMP to Current Sense
Transconductance
GCS
7
A/V
Oscillation Frequency
Fosc1
TA = +25°C
310
360
410
kHz
-40
°C ≤ TA ≤ +85°C
290
430
kHz
Short Circuit Oscillation Frequency
Fosc2
VFB = 0V
55
kHz
Maximum Duty Cycle
DMAX
VFB = 0.7V
85
90
%
Minimum On Time
180
ns
EN Shutdown Threshold Voltage
VEN Rising
1.0
1.3
1.6
V
EN Threshold Voltage Hysteresis
205
mV
EN Input Current
VEN = 5V
2
μA
Input Under Voltage Lockout
Threshold
UVLO
VIN rising, TA = +25°C
3.6
3.95
4.3
V
0
°C ≤ TA ≤ +70°C
3.2
4.5
V
Input Under Voltage Lockout
Threshold Hysterisis
125
mV
Soft-Start Current
VSS = 0V
6
μA
Thermal Shutdown
160
°C
Notes:
5) 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.



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