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TS2509 Fiches technique(PDF) 1 Page - Taiwan Semiconductor Company, Ltd

No de pièce TS2509
Description  3A / 500KHz PWM Buck Converter
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Fabricant  TSC [Taiwan Semiconductor Company, Ltd]
Site Internet  http://www.taiwansemi.com
Logo TSC - Taiwan Semiconductor Company, Ltd

TS2509 Fiches technique(HTML) 1 Page - Taiwan Semiconductor Company, Ltd

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TS2509
3A / 500KHz PWM Buck Converter
1/9
Version: B09
SOP-8
General Description
TS2509 is step-down switching regulator with PWM control and with build in internal PMOS. TS2509 provides low-
ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit can be duty ratio linearly
form 0 up to 100%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevents
overshoot at startup.
An enable, over current protect and short circuit protect functions are built inside. When OCP or SCP activated, the
operation frequency will be reduced. The internal compensation block is built in to minimum external components and
internal PMOS is complete 3A step down switching regulator ideally for portable devices with outstanding features as
low current consumption.
Ordering Information
Part No.
Package
Packing
TS2509CS RL
SOP-8
2.5Kpcs / 13” Reel
Features
Input Voltage: 3.6V~23V
Output Voltage: 0.8V~Vcc
Duty Ratio: 0%~100% PWM Control
Oscillation Frequency: 500kHz typ.
Soft-Start (SS), Current Limit (CL), Enable Function
Thermal Shutdown Function
Short Circuit Protect (SCP)
Internal SW P-Channel MOSFET
Low ESR output capacitor (MLCC application)
Application
Simple High-efficiency Step down Regulator
On-Card Switching Regulators
Absolute Maximum Rating
Parameter
Symbol
Rating
Unit
VCC Pin Voltage
VCC
VSS - 0.3 to VSS + 25
V
Feedback Pin Voltage
VFB
VSS - 0.3 to VCC
V
ON/OFF Pin Voltage
VEN
VSS - 0.3 to VCC + 0.3
V
Switch Pin Voltage
VSW
VSS - 0.3 to VCC + 0.3
V
Power Dissipation
PD
Internally limited
mW
Storage Temperature Range
TST G
-40 to +150
Operating Temperature Range
TOP
-20 to +125
Operating Supply Voltage
VOP
+3.6 to +23
V
Thermal Resistance from Junction to case
θJC
40
℃/W
Thermal Resistance from Junction to ambient
θJA
70
℃/W
Pin Definition:
1. FB
8. Vss
2. EN
7. Vss
3. Comp
6. SW
4. Vcc
5. SW


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