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PDF SI-8008TFE Data sheet ( Hoja de datos )
| Número de pieza | SI-8008TFE | |
| Descripción | DC-to-DC Step-Down Converter | |
| Fabricantes | Sanken | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SI-8008TFE (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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SI-8008TFE
DC-to-DC Step-Down Converter
Features and Benefits
▪ 1.5 A output current supplied in a small, through-hole
mount power package
▪ High efficiency: 81% at VIN= 15 V, IO= 0.5 A,VO= 5 V
▪ Requires only six external components (optional soft
start requires an additional capacitor)
▪ Oscillation circuit built-in (frequency 300 kHz typical)
▪ Constant-current mode overcurrent protection circuit and
overtemperature protection circuit built-in
▪ Soft start function built-in (can be implemented as an
on/off function; output-off state at low level)
▪ Low current consumption during output-off state
Package: TO220F-5
Description
The SI-8008TFE DC voltage regulator is a DC-to-DC buck
convertor that attains an oscillation frequency of 300 kHz,
and has an integrated miniaturized choke coil, allowing it to
serve as a small, high efficiency power supply in a compact
TO220F package.
The internal switching regulator function provides high
efficiency switching regulation without any need for adjustment.
The device requires only six external support components. The
optional soft start function requires an additional capacitor.
Optional on/off control can be performed using a transistor.
The SI-8008TFE includes overcurrent and overtemperature
protection circuits.
Applications include:
▪ DVD recorder
▪ FPD TV
▪ Telecommunications equipment
▪ Office automation equipment, such as printers
▪ On-board local power supply
▪ Output voltage regulator for second stage of SMPS
(switched mode power supply)
Not to scale
27469.061
Functional Block Diagram
VIN 1 IN
C1
PReg
Overcurrent
Protection
SW 2
L1
Di
RK16
(Sanken)
VOUT
C2
5 SS
On/Off
Soft Start
C3
Reset
Osc
Comparator
Error
Amplifier
Latch and
Driver
Overtemperature
Protection
ADJ 4
R1
R2
GND
3
Reference
Voltage
SANKEN ELECTRIC CO., LTD.
http://www.sanken-ele.co.jp/en/
1 page  
SI-8008TFE
DC-to-DC Step-Down Converter
Performance Characteristics
At TA = 25°C, VO = 5 V Adjusted, R1 = 4.2 kΩ, R2 = 0.8 kΩ
6.00
Step Charac-
teristic:
Output Voltage
versus
Supply Voltage
Load = CR
5.00
4.00
3.00
2.00
1.00
0A
0.1 A
0.5 A
1.0 A
1.5 A
IO
400
Quiescent Current
at Output Off:
Quiescent Current
versus
Supply Voltage
VSS = 0 V
300
200
100
0
0
5.10
5.08
5.06
5.04
Load Regulation:
Output Voltage
5.02
versus
5.00
Output Current 4.98
4.96
4.94
4.92
4.90
0
2 4 6 8 10
VIN (V)
VIN
40 V
30 V
20 V Quiescent Current
15 V versus
Supply Voltage
10 V IO = 0 A
8V
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
IO (A)
6
Overcurrent
Protection:
Output Voltage
versus
Output Current
5
4
3
2
VIN
8V
10 V
0
0
10
8
6
4
2
0
0
40 V
30 V
20 V
10
10
1
00 0.5 1.0 1.5 2.0 2.5 3.0
IO (A)
20
VIN (V)
20
VIN (V)
30
30
40
40
27469.061
SANKEN ELECTRIC CO., LTD.
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet SI-8008TFE.PDF ] | |
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