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LR8 数据表(PDF) 3 Page - Supertex, Inc

部件名 LR8
功能描述  High Input Voltage Adjustable 3-Terminal Linear Regulator
PDF  9 Pages
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制造商  SUTEX [Supertex, Inc]
网页  http://www.supertex.com
标志 SUTEX - Supertex, Inc

LR8 数据表(HTML) 3 Page - Supertex, Inc

  LR8 Datasheet HTML 1Page - Supertex, Inc LR8 Datasheet HTML 2Page - Supertex, Inc LR8 Datasheet HTML 3Page - Supertex, Inc LR8 Datasheet HTML 4Page - Supertex, Inc LR8 Datasheet HTML 5Page - Supertex, Inc LR8 Datasheet HTML 6Page - Supertex, Inc LR8 Datasheet HTML 7Page - Supertex, Inc LR8 Datasheet HTML 8Page - Supertex, Inc LR8 Datasheet HTML 9Page - Supertex, Inc  
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3
LR8
Thermal Characteristics
Package
Power Dissipation
@ T
A = 25°C
θ
JC
°C/W
θ
JA
°C/W
TO-92
0.74W
125
170
TO-243AA
1.6W
15
78†
TO-252
2.5W
6.25
50†
†Mounted on FR4 board, 25mm x 25mm x 1.57mm.
Significant PD increase possible on ceramic substrate.
Functional Block Diagram
Overtemp &
Overcurrent
10µA
1.2V
VIN
VOUT
ADJ
LR8
Pass
Element
Typical Application Circuits
LR8
VIN = 17V to 450V
VOUT
ADJ
VIN
*
R1
6.04KΩ
1%
C2
1.0µF
C1
RLOAD ≤16.5KΩ
VOUT = 5.0V
VOUT = 1.20V 1+
R2
R1
+ IADJ R2
R2
18.2KΩ
1%
* Required for conditions where V
IN is less than VOUT
Figure 1: High Input Voltage, 5.0V Output Linear Regulator



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