CS5231-3 데이터 시트보기 (PDF) - ON Semiconductor
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CS5231-3 Datasheet PDF : 14 Pages
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CS5231−3
PC Board Layout Artwork
The PC Board is a single layer copper design. The layout
artwork is reproduced at actual size below.
2”
1.8”
Figure 23. Top Copper Layer
2”
VIN 5.0 V
AUX.DRV
1.8”
GND
AUX 3.3 V
VOUT 3.3 V
GND
Figure 24. Top Silk Screen Layer
Test Description
The startup and supply transition waveforms shown in
Figures 13 through 19 were obtained using the application
circuit board with a resistive load of 8.8 W. This provides a
DC load of 375 mA when the regulated output voltage is 3.3
V. A standard 2.0 A bench supply was used to provide power
to the application circuit. The transient response waveforms
shown in the Typical Performance Characteristics section
were obtained by switching a 6.3 W resistor across the
output.
Temperature Performance
The graph below shows thermal performance for the
CS5231−3 across the normal operating output current range.
55
50
45
40
35
30
25
20
0 50 100 150 200 250 300 350 400 450 500
Load Current (mA)
Figure 25. Package Temperature vs. Load
Current (VIN = 5.0 V, TA = 235C)
PFET RDS(ON) Performance
The graph provided below show typical RDS(ON)
performance for the PFET. The data is provided as VDS vs
IOUT for different values of VAUX.
160
140
120
100
80
60
40
20
0
0
VAUX = 3.135 V
VAUX = 3.300 V
VAUX = 3.465 V
100
200
300
400
500
IOUT (mA)
Figure 26. PFET VDS vs. IOUT
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ Refdes
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ C1,C2
APPLICATIONS CIRCUIT BILL OF MATERIALS
Description
Part Number
Manufacturer
33 mF, 16 V tantalum capacitors
TAJD336K016
AVX Corp
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Q1
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ U1
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ T1−T6
p−channel FET transistor
Linear regulator with auxiliary
Turret pins
MGSF1P02ELT1
CS5231−3DPS
40F6023
ON Semiconductor
ON Semiconductor
Newark Electronics
Contact Information
www.avxcorp.com
1−843−448−9411
http://onsemi.com
http://onsemi.com
www.newark.com
1−800−463−9275
http://onsemi.com
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