TPS54312PWPG4

3 V至6 V的输入， 3 -A输出同步降压具有集成FET的PWM切换器（ SWIFT ） 3-V TO 6-V INPUT, 3-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs SWIFT

DESCRIPON

As members of the SWIFT family of dc/dc regulators, the TPS54311, TPS54312, TPS54313, TPS54314, TPS54315 and TPS54316 low-input-voltage high-output current synchronous-buck PWM converters integrate all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that provides high  performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply

sequencing.

FEATURES

60-mΩMOSFET Switches for High Efficiency at 3-A Continuous Output Source or Sink Current

0.9-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V and 3.3-V Fixed Output Voltage Devices With 1% Initial Accuracy

Internally Compensated for Low Parts Count

Fast Transient Response

Wide PWM Frequency: Fixed 350 kHz, 550 kHz, or Adjustable 280 kHz to 700 kHz

Load Protected by Peak Current Limit and Thermal Shutdown

Integrated Solution Reduces Board Area and Total Cost

APPLICATIONS

Low-Voltage, High-Density Systems With Power Distributed at 5 V or 3.3 V

Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors

Broadband, Networking and Optical Communications Infrastructure

Portable Computing/Notebook PCs