CS5231-3 데이터 시트보기 (PDF) - Cherry semiconductor
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CS5231-3 Datasheet PDF : 11 Pages
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Application Circuit Characteristics: continued
Test Descriptions
The startup and supply transition waveforms shown in fig-
ures 1 through 4b were obtained using the application cir-
cuit board with a resistive load of 8.8Ω. This provides a DC
load of 375mA when the regulated output voltage is 3.3V.
A standard 2A 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 6.3Ω resistor across the out-
put.
Temperature Performance
The graph below shows thermal performance for the
CS5231-3 across the normal operating output current range.
55
50
45
40
The graph provided below show typical RDS(ON) perfor-
mance 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
100
Figure 8: PFET Vds vs IOUT
VAUX = 3.135V
VAUX = 3.300V
VAUX = 3.465V
200
300
IOUT (mA)
400
500
35
30
25
20
0
50 100 150 200 250 300 350 400 450 500
Load Current (mA)
Figure 7: Package Temperature vs Load Current (VIN = 5V, TA =23 C°)
PFET RDS(ON) Performance
Application Circuit Bill of Materials
Refdes Description
Part Number
Manufacturer
Contact Information
C1, C2
Q1
U1
T1-T6
33µF, 16V tantalum capacitors
p-channel FET transistor
Linear regulator with auxiliary
Turret pins
TAJ336K016
MGSF1P02ELT1
CS5231-3DPS
40F6023
AVX Corp
Motorola
Cherry Semiconductor
Newark Electronics
www.avxcorp.com
1-843-448-9411
www.mot-sps.com
www.cherry-sem.com
1-800-272-3601
www.newark.com
1-800-463-9275
10
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