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参数资料
| 型号： | SIP317CA |
| 厂商： | VISHAY SILICONIX |
| 元件分类： | 可调正电压单路输出标准稳压器 |
| 英文描述： | 1.2 V-37 V ADJUSTABLE POSITIVE REGULATOR, PSFM3 |
| 封装： | TO-220AB, 3 PIN |
| 文件页数： | 1/5页 |
| 文件大小： | 78K |
| 代理商： | SIP317CA |
SiP317CA/SiP317CB
Vishay Siliconix
New Product
Document Number: 71998
S-32698—Rev. A, 19-Jan-04
www.vishay.com
1
Three-Terminal Adjustable Output Positive Voltage Regulators
FEATURES
MECHANICAL DATA
D Output Current In Excess Of 1.5 A
D Output Adjustable Between 1.2 V and 37 V
D Internal Thermal Overload Protection
D Internal Short-Circuit Current Limiting Constant With Temperature
D Output Transistor Safe-Area Protection
D Floating Operation for High Voltage Applications
D Eliminates Stocking Many Fixed Voltages
Case: TO-220 and TO-263
Weight: Approximately 1.35 g
DESCRIPTION
The SiP317 is an adjustable 3-terminal positive voltage regulator
capable of supplying in excess of 1.5 A over an output voltage
range of 1.2 V to 37 V. This voltage regulator is exceptionally
easy to use and requires only two external resistors to set the
output voltage. Further, it employs internal current limiting,
thermal shutdown and safe area compensation, making it
essentially blow-out proof.
PACKAGING AND PIN DEFINITION
TO-220AB
TO-263AA (D2Pak)
3
12
Top View
Order Number:
SiP317CB-T8
12 3
Order Number:
SiP317CA
Top View
Pin Definition
1. Adjust
2. VOUT
3. VIN
Heatsink is connected to pin 2
FUNCTIONAL BLOCK DIAGRAM AND STANDARD APPLICATION CIRCUIT
VIN
SiP317
CIN
0.1 mF
COUT
1 mF
VOUT
Reference Voltage
3
VADJ
1
2
R2
R1
240
Adjust
IADJ
RLIMIT
+
Protection
Circuitry
VOUT
VIN
NOTE:
a.
CIN is required if regulator is located an appreciable distance from the
power supply fliter.
b.
COUT is not needed for stability, however, it does improve transient
response.
c.
VOUT = 1.25 V (1 + R2/R1)+ Iadj R2
d.
Since Iadj is controlled to less than 100 mA, the error associated with this
term is negligible in most applications.
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