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MP2148 Arkusz danych(PDF) 6 Page - Monolithic Power Systems

Numer części MP2148
Szczegółowy opis  1A Synchronous Step-down Converter with 11uA Iq in Ultra-small 1x1.5mm QFN
PDF  20 Pages
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Producent  MPS [Monolithic Power Systems]
Strona internetowa  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2148 Arkusz danych(HTML) 6 Page - Monolithic Power Systems

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MP2148 –1A SYNCHRONOUS STEP-DOWN CONVERTER WITH 11µA IQ IN ULTRA-SMALL 1X1.5mm QFN
MP2148 Rev. 1.11
www.MonolithicPower.com
6
5/25/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 3.6V, TJ = -40°C to +125°C, Typical value is tested at TJ = +25°C. The limit over temperature
is guaranteed by characterization, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Switching Frequency
fs
VIN=5V, VOUT=1.2V,
IOUT=500mA, TJ=25°C
(5)
1760
2200
2640
kHz
VIN=5V, VOUT=1.2V,
IOUT=500mA ,TJ=-40°C to
+125°C
(5)
1650
2200
2750
kHz
Minimum Off Time
TMIN-OFF
60
ns
Minimum On Time
(5)
TMIN-ON
60
ns
Soft-Start Time
TSS-ON
VOUT rise from 10% to 90%
0.5
ms
Under Voltage Lockout
Threshold Rising
2
2.25
V
Under Voltage Lockout
Threshold Hysteresis
150
mV
EN Input Logic Low Voltage
0.4
V
EN Input Logic High Voltage
1.2
V
Output Discharge Resistor
RDIS
VEN=0V, VOUT=1.2V
1
kΩ
EN Input Current
VEN=2V
1.2
μA
VEN=0V
0
μA
Supply Current (Shutdown)
VEN=0V, TJ=25°C
0
1
μA
Supply Current (Quiescent)
VEN=2V, VFB=0.63V,
VIN=3.6V,5V, TJ=25°C
11
13
μA
Power Good Leakage
Current
(MP2148GQD-XX only)
IPG
50
100
nA
Power Good Upper Trip
Threshold
(MP2148GQD-XX only)
Vo with Respect to the
Regulation
90
%
Power Good Lower Trip
Threshold
(MP2148GQD-XX only)
85
%
Power Good Delay
(MP2148GQD-XX only)
70
μs
Power Good Sink Current
Capability
(MP2148GQD-XX only)
Sink 1mA
400
mV
Thermal Shutdown
(6)
160
°C
Thermal Hysteresis
(6)
30
°C
Notes:
5) Guaranteed by characterization.
6) Guaranteed by design.
7) Without Sleep Mode.



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