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MP2452 数据表(PDF) 3 Page - Monolithic Power Systems

部件名 MP2452
功能描述  1A, 36V, 1MHz Step-Down Converter
PDF  16 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP2452 数据表(HTML) 3 Page - Monolithic Power Systems

  MP2452 Datasheet HTML 1Page - Monolithic Power Systems MP2452 Datasheet HTML 2Page - Monolithic Power Systems MP2452 Datasheet HTML 3Page - Monolithic Power Systems MP2452 Datasheet HTML 4Page - Monolithic Power Systems MP2452 Datasheet HTML 5Page - Monolithic Power Systems MP2452 Datasheet HTML 6Page - Monolithic Power Systems MP2452 Datasheet HTML 7Page - Monolithic Power Systems MP2452 Datasheet HTML 8Page - Monolithic Power Systems MP2452 Datasheet HTML 9Page - Monolithic Power Systems Next Button
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MP2452―1A, 36V, 1MHz, STEP-DOWN CONVERTER
MP2452 Rev. 1.0
www.MonolithicPower.com
3
9/27/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS
VIN = 12V, VEN = 2V, TA= 25°C, unless otherwise noted.
Parameter
Condition
Min
Typ
Max
Units
4.0V < VIN < 36V
0.778
0.794
0.810
V
Feedback Voltage
3.3V < VIN < 4.0V
0.770
0.794
0.818
V
Upper Switch On Resistance VBST-VSW=5V
500
mΩ
Upper Switch Leakage
VEN = 0V, VSW = 0V
0.1
1
µA
Current Limit
1.2
1.5
A
VIN UVLO Up Threshold
2.7
3.0
3.2
V
VIN UVLO Hysteresis
0.4
V
Soft-start time
FB from 0 to 0.794V
0.5
ms
Oscillator Frequency
800
1000
1200
kHz
Minimum Switch On Time
100
ns
Shutdown Supply Current
VEN = 0V
3
15
µA
No load, Not switching, VFB=0.9
130
µA
Average Quiescent Supply
Current
No load, Switching
220
µA
Thermal Shutdown
150
°C
Enable Up Threshold
1.2
1.5
1.8
V
Enable Threshold Hysteresis
0.3
V



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