TPS54550PWPRG4集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

TPS54550PWPRG4属于集成电路（IC）的稳压器-DC-DC开关稳压器。由德州仪器制造生产的TPS54550PWPRG4稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。

FEATURES

· 40 mW 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

DESCRIPTION

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 undervoltage

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.