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TS3420

Taiwan Semiconductor
Part Number TS3420
Manufacturer Taiwan Semiconductor
Description 2A 1.25MHz Synchronous Buck Converter
Published Jul 10, 2014
Detailed Description TS3420 2A, 1.25MHz Synchronous Buck Converter SOT-26 Pin Definition: 1. EN 2. Ground 3. Switching Output 4. Input 5. Gro...
Datasheet PDF File TS3420 PDF File

TS3420
TS3420


Overview
TS3420 2A, 1.
25MHz Synchronous Buck Converter SOT-26 Pin Definition: 1.
EN 2.
Ground 3.
Switching Output 4.
Input 5.
Ground 6.
Feedback 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 EN GND SW VCC FB Description Power-off pin H：normal operation L：Step-down operation stopped Ground pin Switch output pin.
Connect external inductor here.
Minimize trace area at this pin to reduce EMI.
IC power supply pin Output Feedback pin Ordering Information Part No.
TS3420CX6 RFG Package SOT-26 Packing 3Kpcs/ 7” Reel Note: “G” denote for Halogen Free Product Application Circuit 1/9 Version: A12 TS3420 2A, 1.
25MHz Synchronous Buck Converter Absolute Maximum Rating Characteristics VIN Pin Voltage Feedback Pin Voltage EN Pin Voltage Switch Pin Voltage Power Dissipation Sto...


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