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MP2147 Fiches technique(PDF) 4 Page - Monolithic Power Systems

No de pièce MP2147
Description  5.5V, 4A, 1.2MHz, High-Efficiency, 40uA IQ Constant On-Time Synchronous, Step-Down Switcher
Download  19 Pages
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Fabricant  MPS [Monolithic Power Systems]
Site Internet  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2147 Fiches technique(HTML) 4 Page - Monolithic Power Systems

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MP2147 – 5.5V, 4A, 1.2MHz, COT, BUCK SWITCHER
MP2147 Rev. 1.1
www.MonolithicPower.com
4
6/8/2016
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 3.6V, TA = 25°C, unless otherwise noted.
Parameters
Symbol
Condition
Min
Typ
Max
Units
Supply Current (Quiescent)
IQ
VIN=3.6V, VEN=2V,
VFB = 0.65V
40
60
μA
Shutdown Current
VEN = 0V
0.1
1
μA
IN
Under-Voltage
Lockout
Threshold
2.4
2.55
2.7
V
IN
Under-Voltage
Lockout
Hysteresis
300
mV
Regulated FB Voltage
VFB
2.8V<VIN<5.5V
0.594
0.600
0.606
V
FB Input Current
VFB = 0.65V
50
nA
EN High Threshold
1.6
V
EN Low Threshold
0.4
V
VEN = 2V
2
EN Input Current
VEN = 0V
0
μA
Internal Soft-Start Time
(5)
τSS
1.5
ms
High-Side Switch On-Resistance
RDSON_P
22
mΩ
Low-Side Switch On-Resistance
RDSON_N
14
mΩ
SW Leakage Current
0
1
μA
High-Side Switch Current Limit
Sourcing
6
A
Sinking, PWM Mode
4
Low-Side Switch Current Limit
(6)
Sinking, PFM Mode
0
A
Oscillator Frequency
0.96
1.2
1.44
MHz
Minimum On Time
τON_MIN
50
ns
Minimum Off Time
τOFF_MIN
60
ns
PG UV Threshold Rising
PGTH_Hi
0.9
VFB
PG UV Threshold Falling
PGTH_Lo
0.85
VFB
PG OV Threshold Rising
PGTH_Hi
1.15
VFB
PG OV Threshold Falling
PGTH_Lo
1.1
VFB
PG Delay
PGTD
140
μs
PG Sink Current Capability
Sink 1mA
0.4
V
PG INTERNEL Pull Up Resistor
500
kΩ
Discharge Resistor
150
Thermal Shutdown Threshold
(6)
150
°C
Thermal Shutdown Hysteresis
(6)
20
°C
MODE Forced PWM Threshold
VIN=3.6V, VEN=2V
1.2
V
MODE PFM Threshold
VIN=3.6V, VEN=2V
0.4
V
Notes:
5) Guaranteed by characterization
6) Guaranteed by design.


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