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PDF AN7818NSP Data sheet ( Hoja de datos )
| Número de pieza | AN7818NSP | |
| Descripción | (AN78xxNSP) 3-pin positive output voltage regulator (1 A type) | |
| Fabricantes | Panasonic Semiconductor | |
| Logotipo |  |
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Voltage Regulators
AN78xxNSP Series
3-pin positive output voltage regulator (1 A type)
I Overview
The AN78xxNSP series is a 3-pin fixed positive output
type monolithic voltage regulator housed in surface mount-
ing package. Stabilized fixed output voltage is obtained
from unstable DC input voltage with using minimum ex-
ternal components. 9 types of fixed output voltage are avail-
able; 5 V, 6 V, 7 V, 8 V, 9 V, 10 V, 12 V, 15 V and 18 V. They
can be used widely in power circuits with current capacity
up to 1 A.
I Features
• Output voltage: 5V,6V,7V,8V,9V,10V,12V,15V,18V
• Built-in overcurrent limit circuit
• Built-in thermal overload protection circuit
• Built-in ASO (area of safe operation) protection circuit
I Block Diagram
6.50±0.20
5.30±0.10
(4.35)
(3.00)
Unit: mm
1.00±0.20
1
2.30
2
4.60±0.10
3
0.75±0.10
0.55
+0.10
–0.05
0.10±0.10
SP-3SU
Note) The package of this product will be changed
to lead-free type (SP-3SUA). See the new pack-
age dimensions section later of this datasheet.
Current
source
Pass Tr
Current
limitter
RSC
Starter
Voltage
reference
Thermal
Error amp. protection
R2
R1
1
Input
CI
2
FIN
CI ≥ 0.33 µF, CO ≥ 0.1 µF
I Pin Descriptions
Pin No.
Description
1 Input Input voltage pin
2 GND Ground pin (FIN)
3
Output
Output voltage pin
Publication date: November 2001
SFF00011BEB
CO
3
Output
1
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1 page  
AN78xxNSP Series
I Electrical Characteristics at Ta = 25°C (continued)
• AN7808NSP (8 V type)
The specified condition Tj = 25°C means that the test should be carried out within so short a test time (within 10 ms)
that the characteristic value drift due to the chip junction temperature rise can be ignored.
Unless otherwise specified, VI = 14 V, IO = 500 mA, CI = 0.33 µF and CO = 0.1 µF
Parameter
Symbol
Conditions
Min Typ Max Unit
Output voltage
Output voltage tolerance
VO1 Tj = 25°C
VO2 VI = 11 V to 23 V, IO = 5 mA to 1 A
Tj = 25°C, PD < 5 W
7.7 8 8.3
7.6 8.4
V
V
Line regulation 1
REGIN1 VI = 10.5 V to 25 V, Tj = 25°C
Line regulation 2
REGIN2 VI = 11 V to 17 V, Tj = 25°C
Load regulation 1
REGL1 IO = 5 mA to 1.5 A, Tj = 25°C
Load regulation 2
REGL2 IO = 250 mA to 750 mA, Tj = 25°C
Bias current
IBias Tj = 25°C
Bias current fluctuation to input ∆IBias(IN) VI = 10.5 V to 25 V, Tj = 25°C
Bias current fluctuation to load ∆IBias(L) IO = 5 mA to 1 A, Tj = 25°C
Ripple rejection ratio
RR VI = 11.5 V to 21.5 V, IO = 100 mA, f = 120 Hz
56
6 160
2 80
12 160
4.0 80
3.9 8
1.0
0.5
mV
mV
mV
mV
mA
mA
mA
dB
• Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Parameter
Symbol
Conditions
Min Typ Max Unit
Output noise voltage
VNO f = 10 Hz to 100 kHz
Minimum input/output voltage VDIF(min) IO = 1 A, Tj = 25°C
difference
52 µV
2
V
Output short-circuit current
Peak output current
Output voltage temperature
coefficient
IO(Short) VI = 35 V, Tj = 25°C
IO(Peak) Tj = 25°C
∆VO / Ta IO = 5 mA, Tj = 0°C to 125°C
700 mA
2.0
A
− 0.5 mV/°C
Thermal protection operating
temperature
Tj(TH) IO = 5 mA
150 °C
SFF00011BEB
5
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5 Page 
AN78xxNSP Series
I Application Notes
1. PD Ta curves of SP-3SU
6.00
5.00
PD Ta
Mounted on Al board
(50 × 50 × t2.0 mm3)
Rth(j-a) = 25.0°C/W
4.00
3.00 Mounted on
glass epoxy board 1
(20 × 20 × t1.7 mm3)
Rth(j-a) = 147.0°C/W
2.00
Mounted on
glass epoxy board 2
(50 × 50 × t1.5 mm3)
Rth(j-a) = 89.3°C/W
1.40
1.00
0.85
0.70
Independent IC
without a heat sink
0 Rth( j-a) = 178.0°C/W
0 25 50
75 100 125 150
2. Main Characteristics
Ambient temperature Ta (°C)
Minimum input/output voltage difference vs.
load current characteristic
2
Tj = 25°C
1.8
Minimum input/output voltage difference
temperature characteristic
2.000
1.980
IO = −1 A
1.6 1.960
1.4 1.940
1.2 1.920
1.0 1.900
0.8 1.880
0.6 1.860
0.4 1.840
0.2 1.820
0
0 0.2 0.4 0.6 0.8 1
IO (A)
Peak output current temperature characteristic
2.500
1.800
−40
6
−20 0 20 40 60 80 100
Ta (°C)
Current limit characteristics
120
Tj = 25°C
2.000
5
1.500
1.000
4
VI = 30 V
3
VI = 20 V
VI = 10 V
2
0.500
1
0.000
−40 −20 0
20 40 60
Ta (°C)
80 100 120
0
0
SFF00011BEB
0.5 1 1.5
IO (A)
2
11
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| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AN7818NSP.PDF ] | |
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