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SPX2950 Datasheet(PDF) 12 Page - Sipex Corporation

Part # SPX2950
Description  150mA Low Dropout Voltage Regulator
PDF  13 Pages
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Manufacturer  SIPEX [Sipex Corporation]
Direct Link  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SPX2950 Datasheet(HTML) 12 Page - Sipex Corporation

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12
Rev. 3/6/03
SPX2950/SPX2951 150mA Low Dropout Voltage Regulator
©Copyright 2003 Sipex Corporation
360K
0.1µF
V
OUT
MIN VOLTAGE = 4V
+V
IN
8
1
FB
7
1N4001
20mA
1N457
4.7mA
+5V
OUTPUT
2
GND
4
4
SPX2951
Ω
TYPICAL APPLICATIONS: (Continued)
330kΩ
IN
V
OUT
FB
6
8
1
4.7µF
+
7
27kΩ
SPX2951
V
TAP
GND
SENSE
4
2
UNREGULATED INPUT
2N5432
5V
OUTPUT
LOAD
50mA
TO
300 mA
(2)
Figure 8. Open Circuit Detector for 4mA to 20mA
Current Loop
Figure 9. 300mA Regulator with 0.75V
Figure 10. Schematic Diagram
OUT
SENSE
VTAP
FEEDBACK
IN
ERROR
GND
SHDN
DENOTES CONNECTION ON
LP2950 ONLY
R18
20kΩ
3
24
Q25
Q26
Q24
3
R27
R28
12kΩ
R17
Q14
Q22
Q23
Q21
Q19
Q29
Q28
Q30
Q31
Q18
Q20
Q16
Q17
11
2
2
Q9
Q8
Q7
Q5
Q4
Q2
Q1
Q3
Q6
Q41
Q42
Q40
Q13
Q12
Q11
Q37
Q38
Q36
Q35
Q34
Q39
Q15A
Q15B
R13
100kΩ
R16
30kΩ
R17
10Ω
3
6
R21
8Ω
R23
60kΩ
R24
50kΩ
R22
150kΩ
R25
2.8kΩ
R13
100
kΩ
R12
110kΩ
R14
350kΩ
C2
40pF
R10
150
kΩ
R8
31.4kΩ
R9
27.8kΩ
R6
140kΩ
R5
180kΩ
R11
20.6kΩ
C1
20pF
R11
18kΩ
R1
20kΩ
R2
50kΩ
R3
50kΩ
R4
13kΩ
R30
30kΩ
4
10
3
R26
60kΩ
2
4
5



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