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TS3406 Datasheet(PDF) 1 Page - Taiwan Semiconductor Company, Ltd |
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TS3406 Datasheet(HTML) 1 Page - Taiwan Semiconductor Company, Ltd |
1 / 7 page TS3406 600mA / 1.5MHz Synchronous Buck Converter 1/7 Version: C12 SOT-25 General Description The TS3406 is a high efficiency monolithic synchronous buck regulator using a 1.5MHz constant frequency, current mode architecture. The device is available in an adjustable version. Supply current with no load is 300µA and drops to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the TS3406 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. The TS3406 can supply 600mA of load current at VCC=3V. Features ● High Efficiency: Up to 96% ● 2.5V to 5.5V Input Voltage Range ● Short Circuit Protection (SCP) ● 1.5MHz Constant Frequency Operation ● Low Dropout Operation: 100% Duty Cycle ● 0.6V Reference Allows Low Output Voltages ● 600mA Output Current at Vcc=3V ● Low Quiescent Current: 300uA ● 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 (All circuits deactivated) 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 TS3406CX5 RF SOT-25 3Kpcs/ 7” Reel Application Circuit Pin Definition: 1. EN 2. Ground 3. Switching Output 4. Input 5. Feedback |
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