TPS54550是TI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，本页介绍了TPS54550的产品说明、应用、特性等，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 - TI公司（Texas Instruments，德州仪器）
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.
- 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.
