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TS3406 Datasheet(PDF) 1 Page - Taiwan Semiconductor Company, Ltd

Part No. TS3406
Description  600mA / 1.5MHz Synchronous Buck Converter
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Maker  TSC [Taiwan Semiconductor Company, Ltd]
Homepage  http://www.taiwansemi.com
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TS3406 Datasheet(HTML) 1 Page - Taiwan Semiconductor Company, Ltd

   
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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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