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MP28367 数据表(PDF) 2 Page - Monolithic Power Systems

部件名 MP28367
功能描述  1A, 21V, 1.4MHz Step-Down Converter in a TSOT23-6
PDF  9 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP28367 数据表(HTML) 2 Page - Monolithic Power Systems

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MP28367 – 1A, 21V, 1.4MHz STEP-DOWN CONVERTER IN A TSOT23-6
MP28367 Rev. 0.9
www.MonolithicPower.com
2
12/13/2007
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2007 MPS. All Rights Reserved.
TM
PACKAGE REFERENCE
Part Number*
Package
Temperature
MP28367DJ
TSOT23-6
–40
°C to +85°C
* For Tape & Reel, add suffix –Z (eg. MP28367DJ–Z)
For RoHS compliant packaging, add suffix –LF (eg.
MP28367DJ–LF–Z)
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage VIN....................................... 23V
VSW....................................... –0.3V to VIN + 0.3V
VBS ....................................................... 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.............................. 6V to 21V
Output Voltage VOUT ...................... 0.81V to 15V
Operating Temperature .............–40
°C to +85°C
Thermal Resistance
(3)
θJA
θJC
TSOT23-6.............................. 220 .... 110..
°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
0.794
0.810
0.826
V
Feedback Current
IFB
VFB = 0.8V
10
nA
Switch-On Resistance
(4)
RDS(ON)
0.35
Ω
Switch Leakage
VEN = 0V, VSW = 0V
10
μA
Current Limit
(4)
1.8
A
Oscillator Frequency
fSW
VFB = 0.6V
1.4
MHz
Fold-back Frequency
VFB = 0V
460
KHz
Maximum Duty Cycle
VFB = 0.6V
87
%
Minimum On-Time
(4)
tON
100
ns
Under Voltage Lockout Threshold Rising
2.5
2.8
3.1
V
Under Voltage Lockout Threshold Hysteresis
150
mV
EN Input Low Voltage
0.4
V
EN Input High Voltage
1.2
V
VEN = 2V
2.1
EN Input Current
VEN = 0V
0.01
μA
Supply Current (Shutdown)
VEN = 0V
0.1
1.0
μA
Supply Current (Quiescent)
VEN = 2V, VFB = 1V
0.8
1.1
mA
Thermal Shutdown
(4)
150
°C
Note:
4) Guaranteed by design.
BST
GND
FB
1
2
3
6
5
4
SW
IN
EN
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