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PDF UPC305 Data sheet ( Hoja de datos )
| Número de pieza | UPC305 | |
| Descripción | POSITIVE VOLTAGE STABILIZED POWER SUPPLY | |
| Fabricantes | NEC | |
| Logotipo |  |
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DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUT
µPC305
POSITIVE VOLTAGE STABILIZED POWER SUPPLY
DESCRIPTION
The µPC305 is a high-performance stabilized power supply that can supply a constant voltage in a wide
temperature range even if the input voltage or load voltage fluctuates, by integrating a high-gain error amplifier and a
temperature-compensating constant-voltage diode on a single chip.
FEATURES
• Wide output voltage variable range Vo: 4.5 to 30 V, VDIF: 3 to 30 V
• Excellent load stability
0.02%
• Good ripple rejection ratio
0.003%/V
ORDERING INFORMATION
Part Number
Package
µPC305C
µPC305G2
8-pin plastic DIP (7.62 mm (300))
8-pin plastic SOP (5.72 mm (225))
PIN CONFIGURATION (Top View)
µPC305C, 305G2
Current limiter 1
8 Output
Current output 2
7 Compensation
Input 3
6 Error detection
GND 4
5 Reference voltage
EQUIVALENT CIRCUIT
R7 2.8 kΩ
Q11
Q12
Q13
Q10
Q14
R8
1.86 kΩ
R10
600 Ω
Q15
Q9
Q7
Q8
R6 Q6
4.4 kΩ
R9
Q16 1.32 kΩ
D1
R4
3 kΩ
R3
6.8 kΩ
Q18 R2
3 kΩ
Q4
Q2
C1
5 pF
Q5
Q3
Q17
Q1 R5
2.2 kΩ
3 Input
2 Current output
1 Current limiter
8 Output
7 Compensation
6 Error detection
5 Reference voltage
4 GND
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. G10633EJ3V0DS00 (3rd edition)
Date Published December 1999 N CP(K)
Printed in Japan
©
1999
1 page  
PACKAGE DRAWINGS
8-PIN PLASTIC DIP (7.62mm(300))
85
1
J
I
4
A
P
µPC305
K
L
H
G
C
B
F
D NM
NOTES
1. Each lead centerline is located within 0.25 mm of
its true position (T.P.) at maximum material condition.
2. ltem "K" to center of leads when formed parallel.
M
Data Sheet G10633EJ3V0DS00
R
ITEM MILLIMETERS
A 10.16 MAX.
B 1.27 MAX.
C 2.54 (T.P.)
D 0.50±0.10
F 1.4 MIN.
G 3.2±0.3
H 0.51 MIN.
I 4.31 MAX.
J 5.08 MAX.
K 7.62 (T.P.)
L 6.4
M 0.25+−00..1005
N 0.25
P 0.9 MIN.
R 0∼15°
P8C-100-300B,C-2
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet UPC305.PDF ] | |
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