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부품번호 | CS5208-1 기능 |
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기능 | 8.0A LDO 3-Pin Adjustable Linear Regulator | ||
제조업체 | ON Semiconductor | ||
로고 | |||
전체 8 페이지수
CS5208−1
8.0 A LDO 3−Pin Adjustable
Linear Regulator
The CS5208−1 linear regulator provides 8.0 A at adjustable
voltages from 1.25 V to 4.5 V. This adjustable device requires two
external resistors to set the output voltage and provide the minimum
load current for proper regulation.
This regulator is intended for use as a post regulator and
microprocessor supply. The fast loop response and low dropout
voltage make this regulator ideal for applications where low voltage
operation and good transient response are important.
The circuit is designed to operate with dropout voltages as low as
1.0 V at 8.0 A.
The regulator is protected against overload conditions with
overcurrent and thermal shutdown protection circuitry.
The regulator is available in a TO−220 package.
Features
• 1.25 V to 4.5 V VOUT at 8.0 A
• Dropout Voltage < 1.0 V @ 8.0 A
• 1.5% Trimmed Reference
• Fast Transient Response
• Thermal Shutdown
• Current Limit
• Short Circuit Protection
5.0 V
VIN VOUT
CS5208−1
Adj
100 μF
0.1 μF
3.3 V @ 8.0 A
124
Load
200
300 μF
Figure 1. Applications Diagram
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TO−220
THREE LEAD
T SUFFIX
CASE 221A
12 3
PIN CONNECTIONS AND
MARKING DIAGRAMS
CS5208−1
AWLYWW
Tab = VOUT
Pin 1. Adjust
2. VOUT
3. VIN
1
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
ORDERING INFORMATION
Device
Package
Shipping
CS5208−1GT3
TO−220* 50 Units/Rail
*TO−220 is 3−pin, straight leaded.
© Semiconductor Components Industries, LLC, 2006
September, 2006 − Rev. 6
1
Publication Order Number:
CS5208−1/D
CS5208−1
90
IO = 10 mA
85
80
75
70
65
60
0 10 20 30 40 50 60 70 80 90 100 110 120 130
TCase (°C)
Figure 5. Adjust Pin Current vs.
Temperature
72.6
72.4
72.2
72.0
71.8
71.6
71.4
71.2
71.0
70.8
70.6
70.4
70.2
70
0.0 0.8 1.6 2.4 3.2 4.0 4.8 5.6 6.4 7.2 8.0
IOUT (A)
Figure 6. Adjust Pin vs. IOUT
1.25
1.00
0.75
0.50
0.25
0
0 12345 67
Output Current (A)
Figure 7. Dropout Voltage vs. Output
Current
8
1.00
0.98
0.96
0.94
0.92
TCASE = 25°C
TCASE = 125°C
0.90
0.88
0.86
0.84
0.82
TCASE = 0°C
0.80
12345
VIN − VOUT (V)
Figure 9. Minimum Load Current vs. VIN − VOUT
20
18
16
14
12
10
8
6
4
2
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VIN − VOUT (V)
Figure 8. Short Circuit vs. VIN − VOUT
90
80
70
60
50
40
VIN − VOUT = 2.0 V
VRIPPLE = 1.0 VPP
30 IOUT = 4.0 A
CAdj = 0.1 μF
20 COUT = 22 μF
10101
102 103 104 105
Frequency (Hz)
106
Figure 10. Ripple Rejection vs. Frequency
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4
4페이지 CS5208−1
The maximum ambient temperature and the power
dissipation are determined by the design while the
maximum junction temperature and the thermal resistance
depend on the manufacturer and the package type. The
maximum power dissipation for a regulator is:
PD(max) + (VIN(max) * VOUT(min))IOUT(max) ) VIN(max) IIN(max)
A heat sink effectively increases the surface area of the
package to improve the flow of heat away from the IC and
into the surrounding air. Each material in the heat flow path
between the IC and the outside environment has a thermal
resistance. Like series electrical resistances, these
resistances are summed to determine the total thermal
resistance between the die junction and the surrounding air,
RΘJC. This total thermal resistance is comprised of three
components. These resistive terms are measured from
junction to case (RΘJC), case to heat sink (RΘCS), and heat
sink to ambient air (RΘSA). The equation is:
RQJA + RQJC ) RQCS ) RQSA
RΘJC is rated @ 1.4°C/W for the CS5208−1. For a high
current regulator such as the CS5208−1 the majority of heat
is generated in the power transistor section. The value for
RΘSA depends on the heat sink type, while the RΘCS depends
on factors such as package type, heat sink interface (is an
insulator and thermal grease used?), and the contact area
between the heat sink and the package. Once these
calculations are complete, the maximum permissible value
of RΘJA can be calculated and the proper heat sink selected.
For further discussion on heat sink selection, see application
note “Thermal Management,” document number
AND8036/D, available through the Literature Distribution
Center or via our website at http://onsemi.com.
http://onsemi.com
7
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구 성 | 총 8 페이지수 | ||
다운로드 | [ CS5208-1.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
CS5208-1 | 8A LDO 3-Pin Adjustable Linear Regulator | Cherry Semiconductor Corporation |
CS5208-1 | 8.0A LDO 3-Pin Adjustable Linear Regulator | ON Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |