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MP2187 датащи(PDF) 4 Page - Monolithic Power Systems

номер детали MP2187
подробное описание детали  Dual 3A, 5.5V, 1.2MHz, COT Synchronous Step-Down Switcher
PDF  18 Pages
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производитель  MPS [Monolithic Power Systems]
домашняя страница  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2187 датащи(HTML) 4 Page - Monolithic Power Systems

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MP2187 – DUAL 3A, 5.5V, 1.2MHz, SYNCHRONOUS STEP-DOWN SWITCHER
MP2187 Rev. 1.0
www.MonolithicPower.com
4
12/12/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 5V, TJ=-40°C to +125°C, typical value is tested at TJ=25°C, unless otherwise noted.
Parameter
Symbol Condition
Min
Typ
Max
Units
Input Voltage Range
Input Voltage
VIN
2.5
5.5
V
Supply Current
Supply Current (Shutdown)
VEN1 or 2=0V
0.1
μA
Supply Current (Quiescent)
VEN=2V, VIN=3.6V, Both
channel on
80
μA
Output Voltage
1.1V rail, TJ=25°C
-1.5%
1.1
+1.5%
Fixed Output Voltage
Vo
1.8V rail, TJ=25°C
-1.5%
1.8
+1.5%
V/%
Internal Feedback Voltage of 1.1V Output Channel
2.5V ≤ VIN ≤ 5.5V, TJ=25°C
-1.5% 0.600 +1.5%
Internal Feedback Voltage
VFB
TJ=-40°C to 125°C
(5)
-2%
+2%
V/%
Power FET
PFET Switch ON Resistance
RDSON_P
60
mΩ
NFET Switch ON Resistance
RDSON_N
30
mΩ
Switch Leakage
VEN1 or 2 = 0V, VIN = 5V
VSW 1 or 2= 0V and 5V, TJ=25°C
0.1
2
μA
PFET Current Limit
(6)
4.7
5.3
A
VIN=5V, VOUT1 =1.1V
183
ON Time
TON
VIN=5V, VOUT 2=1.8V
300
ns
VIN=5V, VOUT1 =1.1V, IOUT1 =1A
VIN=5V, VOUT2 =1.8V, IOUT2
=1A, TJ=25°C
-20%
1200
+20%
kHz
Switching Frequency
Fs
TJ=-40°C to 125°C
(5)
-25%
1200
+25%
kHz
Minimum OFF Time
TMIN-OFF
50
ns
Soft Start and Soft Off
Soft-Start Time
TSS-ON
10% to 90% output voltage
0.6
ms
Soft-Stop Time
TSS-OFF
1
ms
Power Good
Power-Good Upper Trip Threshold
PGH
FB voltage with respect to the
regulation
+10
%
Power-Good Lower Trip Threshold
PGL
-10
%
PGDL
High to low
100
μs
Power-Good Delay
PGDH
Low to high
100
us
Power-Good Sink Current
Capability
VPG-L
Sink 1mA
0.4
V
Power Good Logic High Voltage
VPG-H
VIN=5V
4.9
V
Power Good Internal Pull-Up
Resistor
RPG
500
kΩ



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