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TS3405 - Single Synchronous Buck PWM Controller

General Description

The TS3405 makes simple work out of implementing a complete control and protection scheme for a DC-DC step-down converter.

Designed to drive N-channel MOSFETs in a synchronous buck topology, the TS3405 integrates the control, output a adjustment, monitoring and protection functions.

Key Features

  • a 15MHz gain-bandwidth product and 8V/uS slew rate, which enables high converter bandwidth for fast transient performance. The resulting PWM duty cycles range from 0% to 100%. The protection from over current conditions is provided by monitoring the Rds(on) of the lower MOSFET to inhibit PWM operation appropriately. This approach simplifies the implementation and improves efficiency by eliminating the need for a current sense resistor. Features Buck converter Vin operate from 3.3V ~ 14V Vcc ope.

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Datasheet Details

Part number TS3405
Manufacturer Taiwan Semiconductor Company
File Size 582.41 KB
Description Single Synchronous Buck PWM Controller
Datasheet download datasheet TS3405 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com TS3404 Single Synchronous Buck PWM Controller Pin assignment 1. Boot 8. Phase 2. Ugate 7. COMP 3. Gnd 6. FB 4. Lgate 5. Vcc Oscillator Frequency up to 300KHz 0.8V Internal Reference Drives N-Channel MOSFETs General Description The TS3405 makes simple work out of implementing a complete control and protection scheme for a DC-DC step-down converter. Designed to drive N-channel MOSFETs in a synchronous buck topology, the TS3405 integrates the control, output a adjustment, monitoring and protection functions. The TS3405 provides simple, single feedback loop, voltage mode control with fast transient response. The output voltage can be precisely regulated to as low as 0.8V, with a maximum tolerance of ±1.5% over temperature and line voltage variations.