TPS54550 - 具有低侧栅极驱动器的 4.5V 至 20V 输入、5A 同步降压 SWIFT? 转换器

TPS54550是TI德州仪器公司的一款转换器（集成开关）产品，TPS54550是具有低侧栅极驱动器的 4.5V 至 20V 输入、5A 同步降压 SWIFT? 转换器，本站介绍了TPS54550的封装应用图解、特点和优点、功能等，并给出了与TPS54550相关的TI元器件型号供参考。

TPS54550 - 具有低侧栅极驱动器的 4.5V 至 20V 输入、5A 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 TPS54550 is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter inductors and capacitors. The TPS54550 has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4.5 V; a 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 TPS54550 device is 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

40 m MOSFET Switch for High Efficiency at 6-A (7.5 Peak) Output Current
Uses External Lowside MOSFET
Output Voltage Adjustable Down to 0.891 V With 1% Accuracy
Synchronizes to External Clock
180° Out of Phase Synchronization
Wide PWM Frequency— Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz
Adjustable Slow Start
Adjustable Undervoltage Lockout
Load Protected by Peak Current Limit and Thermal Shutdown
16-Pin TSSOP PowerPAD™ Package
SWIFT Documentation Application Notes, and Design Software: www.ti.com/swift
APPLICATIONS
- Industrial and Commercial Low Power Systems
- LCD Monitors and TVs
- Computer Peripherals
- Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors

SWIFT, PowerPAD are trademarks of Texas Instruments.

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