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TS2508 датащи(PDF) 2 Page - Taiwan Semiconductor Company, Ltd

номер детали TS2508
подробное описание детали  2A / 330KHz PWM Buck Converter
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производитель  TSC [Taiwan Semiconductor Company, Ltd]
домашняя страница  http://www.taiwansemi.com
Logo TSC - Taiwan Semiconductor Company, Ltd

TS2508 датащи(HTML) 2 Page - Taiwan Semiconductor Company, Ltd

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TS2508
2A / 330KHz PWM Buck Converter
2/8
Version: B07
Electrical Specifications (VIN=12V, Ta=25oC unless otherwise noted)
Characteristics
Symbol
Conditions
Min
Typ
Max
Units
Feedback Voltage
VFB
IOUT =0.1A
0.784
0.800
0.816
V
Quiescent Current
Iq
VFB =1.2V force driver off
--
3
5
mA
Feedback Bias Current
IFB
IOUT =0.1A
--
0.1
0.5
uA
Shutdown Supply Current
ISD
VEN =0V
--
2
10
uA
OCSET pin bias current
IOCSET
95
110
125
uA
Switch Current
ISW
2
--
--
A
Line Regulation
∆VOUT/VOUT
VCC = 5V~20V, IOUT =0.2A
--
1
2
%
Load Regulation
IOCSET
IOUT = 0.1 to 2A
--
0.3
0.5
%
Oscillation Frequency
FOSC
SW pin
260
330
400
KHz
VSH
High (regulator ON)
2.0
--
--
EN Pin Logic input
threshold voltage
VSL
Low (regulator OFF)
--
--
0.8
V
ISH
VEN =2.5V (ON)
--
20
--
uA
EN Pin Input Current
ISL
VEN =0.3V (OFF)
--
-10
--
uA
Soft-Start Time
TSS
0.3
4
8
ms
VCC = 5V, VFB = 0V
--
100
140
Internal P-MOS RDSON
RDSON
VCC = 12V, VFB = 0V
--
70
100
IOUT = 1A
--
92
--
Efficiency
EFFI
VCC = 12V,
VOUT = 5V
IOUT = 2A
--
92
--
%
Block Diagram
Pin Assignment
Name
Description
Name
Description
FB
Feedback pin
Vss
GND pin
EN
H:Normal operation (Step-down)
L:Step-down operation stopped (All circuit deactivated)
Vss
GND pin
OCSET
Add an external resistor to set max switch output
current.
SW
Switch pin. Connect external inductor
& diode here
Vcc
IC power supply pin
SW
Switch pin. Connect external inductor
& diode here


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