TPS54357 - 具有低侧栅极驱动器的 4.5V 至 20V 输入、5V 输出、3A 同步降压 SWIFT? 转换器

TPS54357是TI德州仪器公司的一款转换器（集成开关）产品，TPS54357是具有低侧栅极驱动器的 4.5V 至 20V 输入、5V 输出、3A 同步降压 SWIFT? 转换器，本站介绍了TPS54357的封装应用图解、特点和优点、功能等，并给出了与TPS54357相关的TI元器件型号供参考。

TPS54357 - 具有低侧栅极驱动器的 4.5V 至 20V 输入、5V 输出、3A 同步降压 SWIFT? 转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS5435x is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an optional low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions. The TPS5435x has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches a preset value; an internal slow-start circuit to limit in-rush currents; and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out of phase synchronization.

The TPS5435x devices are available in a thermally enhanced 16-pin TSSOP (PWP) PowerPAD™ package. TI provides evaluation modules and the SWIFT™ Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

产品特性

100 mΩ, 4.5-A Peak MOSFET Switch for High Efficiency at 3-A Continuous Output Current
Uses External Lowside MOSFET or Diode
Fixed Output Versions — 1.2V/1.5V/1.8V/2.5V/3.3V/5.0V
Internally Compensated for Low Parts Count
Synchronizes to External Clock
180° Out of Phase Synchronization
Wide PWM Frequency — Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz
Internal Slow Start
Load Protected by Peak Current Limit and Thermal Shutdown
Adjustable Undervoltage Lockout
16-Pin TSSOP PowerPAD™ Package
APPLICATIONS
- Industrial & Commercial Low Power Systems
- LCD Monitors and TVs
- Computer Peripherals
- Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors

PowerPAD and SWIFT are trademarks of Texas Instruments.

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