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MP3221 Datasheet(PDF) 3 Page - Monolithic Power Systems

Part No. MP3221
Description  2.7A, 1.2MHz, High-Efficiency Step-Up Converter With Input Disconnect
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Maker  MPS [Monolithic Power Systems]
Homepage  http://www.monolithicpower.com
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MP3221 Datasheet(HTML) 3 Page - Monolithic Power Systems

 
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MP3221
–2.7A, 1.2MHZ, HIGH-EFFICIENCY STEP UP CONVERTER WITH INPUT DISCONNECT
MP3221 Rev. 1.0
www.MonolithicPower.com
3
9/23/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = VEN = 3.3V, TA = 25°C, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Operating Input Voltage
VIN
2.5
6
V
IN Under Voltage Lockout
VUVLO
VIN Rising
2.0
2.2
2.4
V
IN
Under
Voltage
Lockout
Hysteresis
225
mV
Shutdown Current
ISD
VEN = 0V
0.15
µA
Quiescent Current
VFB = 0.85V,
No Switching
270
µA
Switching Frequency
fSW
1
1.2
1.4
MHz
Minimum On time
(5)
TON,MIN
80
ns
Maximum Duty Cycle
DMAX
VFB = 0.6V
90
%
EN Input High Voltage
VEN_H
1.3
V
EN Input Low Voltage
VEN_L
0.5
V
EN Input Bias Current
VEN = 5V
4
µA
FB Voltage
VFB
VEN = 5V
0.780
0.796
0.812
V
FB Input Bias Current
VFB = 0.82V
–50
–10
nA
FAULT
Detection
Threshold
Voltage
VFB-AULT
Step-up Converter Fails
110
150
185
mV
FAULT Pull Down Current
IFAULT
85
115
145
µA
FAULT Pin Output Low Voltage
VFB=0.6V, I=30µA
0.3
V
SW On Resistance
RDS (ON)
88
mΩ
SW Current Limit
Duty Cycle = 40%
2.7
3.7
5.2
A
SW Leakage
VSW = 5V
1
µA
Thermal Shutdown
(5)
TSHDN_TH
150
C
Thermal Shutdown Hysteresis
(5)
TSHDN_HYS
20
C
Notes:
5) Guaranteed by engineering sample characterization. not production tested.


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