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MP2380DN 数据表(PDF) 2 Page - Monolithic Power Systems

部件名 MP2380DN
功能描述  5A, 21V, 600KHz Step-Down Converter
PDF  11 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP2380DN 数据表(HTML) 2 Page - Monolithic Power Systems

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MP2380 – 5A, 21V, 600KHz STEP-DOWN CONVERTER
MP2380 Rev.1.2
www.MonolithicPower.com
2
5/26/2008
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2008 MPS. All Rights Reserved.
PACKAGE REFERENCE
SW
BST
VCC
GND
IN
EN/SYNC
PG
FB
1
2
3
4
8
7
6
5
TOP VIEW
EXPOSED PAD
ON BACKSIDE
Part Number*
Package
Temperature
MP2380DN
SOIC8E
–40
°C to +85°C
* For Tape & Reel, add suffix –Z (e.g. MP2380DN–Z)
For RoHS Compliant Packaging, add suffix –LF
(e.g. MP2380DN–LF–Z)
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage VIN....................................... 23V
VSW............................................................... 24V
VBST -VSW........................................................ 6V
All Other Pins................................. –0.3V to +6V
Junction Temperature...............................150
°C
Lead Temperature ....................................260
°C
Storage Temperature ..............–65
°C to +150°C
Recommended Operating Conditions
(2)
Supply Voltage VIN........................... 4.5V to 21V
Operating Temperature .............–40
°C to +85°C
Thermal Resistance
(3)
θJA
θJC
SOIC8E .................................. 50 ...... 10...
°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
operating conditions.
3) Measured on approximately 1” square of 1 oz copper.
ELECTRICAL CHARACTERISTICS
VIN = 12V, TA = +25°C, unless otherwise noted.
Parameters
Symbol Condition
Min
Typ
Max
Units
Feedback Voltage
VFB
4.5V
≤ VIN ≤ 21V
0.788
0.808
0.828
V
VFB = 0.8V
10
nA
Feedback Current
IFB
VFB = 2V
2
µA
Switch On Resistance
(4)
RDS(ON)
45
75
mΩ
Switch Leakage
VEN = 0V, VSW = 0V
0
25
µA
Current Limit
(4)
6.5
7.3
A
Oscillator Frequency
fSW
VFB = 0.6V
400
600
800
KHz
Fold-back Frequency
VFB = 0V
60
150
240
KHz
Maximum Duty Cycle
VFB = 0.6V
85
90
%
Minimum On Time
tON
100
ns
Under Voltage Lockout Threshold Rising
3.9
4.1
4.3
V
Under Voltage Lockout Threshold Hysteresis
880
mV
EN Input Low Voltage
0.4
V
En Input High Voltage
1.2
V
VEN = 2V
2
EN Input Current
VEN = 0V
0
µA
Sync Frequency Range (Low)
FSYNCL
300
KHz
Sync Frequency Range (High)
FSYNCH
1.5
MHz
Enable Turnoff Delay
TOFF
5.0
us
Supply Current (Shutdown)
VEN = 0V
25
µA
Supply Current (Quiescent)
VEN = 2V, VFB = 1V
0.9
1.1
mA
Thermal Shutdown
150
°C
Power Good Control
Power Good Threshold Rising
0.69
0.74
0.79
V
Power Good Threshold Hysteresis
40
mV
PG Pin Level
VPG
PG Sink 4mA
0.4
V
Note:
4) Guaranteed by design.



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