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TS2509CSRL Datasheet(PDF) 2 Page - Taiwan Semiconductor Company, Ltd

Part # TS2509CSRL
Description  3A / 500KHz PWM Buck Converter
PDF  9 Pages
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Manufacturer  TSC [Taiwan Semiconductor Company, Ltd]
Direct Link  http://www.taiwansemi.com
Logo TSC - Taiwan Semiconductor Company, Ltd

TS2509CSRL Datasheet(HTML) 2 Page - Taiwan Semiconductor Company, Ltd

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TS2509
3A / 500KHz PWM Buck Converter
2/9
Version: A09
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
Current limit
ISW
4
--
--
A
Line Regulation
∆VOUT/VOUT
VCC = 5V~23V, IOUT =0.2A
--
0.6
1.2
%
Load Regulation
∆VOUT/VOUT
IOUT = 0.1 to 3A
--
0.2
0.4
%
Oscillation Frequency
FOSC
SW pin
400
500
600
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
--
90
140
Internal MOSFET
RDSON
VCC = 12V, VFB =0V
--
60
90
mΩ
IOUT = 2A
--
91
--
Efficiency
EFFI
VOUT = 5V
IOUT = 3A
--
90
--
%
Thermal Shutdown Temp.
TSD
--
125
--
ºC
Block Diagram
Pin Assignment
Name
Description
FB
Feedback pin
EN
H: Normal operation (Step-down)
L: Step-down operation stopped (All circuit deactivated)
Comp
Compensation pin
SW
Switch pin. Connect external inductor/diode here
Vcc
IC power supply pin
Vss
Gnd pin



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