Datenblatt-Suchmaschine für elektronische Bauteile |
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TS3420CX6-RFG Datenblatt(PDF) 1 Page - Taiwan Semiconductor Company, Ltd |
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TS3420CX6-RFG Datenblatt(HTML) 1 Page - Taiwan Semiconductor Company, Ltd |
1 / 9 page TS3420 2A, 1.25MHz Synchronous Buck Converter 1/9 Version: A12 SOT-26 General Description TS3420 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version. Supply current with no load is 200uA and drops to <1uA in shutdown. The 2.8V to 5.5V input voltage range makes TS3420 ideally suited for single Li-Ion, two to three AA battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Switching frequency is internally set at 1.25MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and decreases need of an external schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. Features ● High Efficiency: Up to 96% ● 2.8V to 5.5V Input Voltage Range ● Output Voltage from 0.6V to VIN ● Short Circuit Protection (SCP) ● Build in Soft-Start Function ● 1.25MHz Constant Frequency Operation ● Up to 2A Output Current ● No Schottky Diode Required in Application ● ≤1uA Shutdown Current ● Current Mode Operation for Excellent Line and Load Transient Response Application ● Cellular Phones ● Digital Still Cameras ● Portable Electronics ● USB Devices Pin Description Name Description EN Power-off pin H:normal operation L:Step-down operation stopped GND Ground pin SW Switch output pin. Connect external inductor here. Minimize trace area at this pin to reduce EMI. VCC IC power supply pin FB Output Feedback pin Ordering Information Part No. Package Packing TS3420CX6 RFG SOT-26 3Kpcs/ 7” Reel Note: “G” denote for Halogen Free Product Application Circuit Pin Definition: 1. EN 2. Ground 3. Switching Output 4. Input 5. Ground 6. Feedback |
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