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MP2467 数据表(PDF) 3 Page - Monolithic Power Systems

部件名 MP2467
功能描述  2.5A, 36V, 500kHz Step-Down Converter
PDF  17 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP2467 数据表(HTML) 3 Page - Monolithic Power Systems

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MP2467 – 2.5A, 36V, 500KHz STEP-DOWN CONVERTER
MP2467 Rev. 1.1
www.MonolithicPower.com
3
1/25/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, VEN = 2.5V, VCOMP = 1.4V, TA= +25°C, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Feedback Voltage
VFB
6V < VIN < 36V
0.776
0.8
0.824
V
Upper Switch On Resistance
RDS(ON)
VBST – VSW = 5V
150
mΩ
Upper Switch Leakage
VEN = 0V, VSW = 0V
1
µA
Current Limit
2.9
3.5
A
COMP To Current Sense Transconductance
GCS
6
A/V
Error Amp Voltage Gain
(5)
200
V/V
Error Amp Transconductance
ICOMP = ±3µA
40
60
80
µA/V
Error Amp Min Source current
VFB = 0.7V
5
µA
Error Amp Min Sink current
VFB = 0.9V
–5
µA
VIN UVLO Threshold
2.7
3.0
3.3
V
VIN UVLO Hysteresis
0.35
V
Soft-Start Time
(5)
0V < VFB < 0.8V
1.5
ms
Oscillator Frequency
400
500
600
KHz
Minimum Switch On Time
(5)
100
ns
Shutdown Supply Current
VEN = 0V
12
20
µA
Quiescent Supply Current
No load, VFB = 0.9V
100
125
µA
Thermal Shutdown
150
°C
Thermal Shutdown Hysteresis
15
°C
EN Up Threshold
1.35
1.5
1.65
V
EN Down Threshold
1.15
1.2
1.25
V
Minimum Off Time
(5)
200
ns
Note:
5) Guaranteed by design.



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