Texas Instruments TPS549D22

Description

3 DescriptionThe TPS549D22 device is a compact single buckconverter with adaptive on-time, D-CAP3 modecontrol. It is designed for high accuracy, highefficiency, fast transient response, ease-of-use, lowexternal component count and space-consciouspower systems.This device features full differential sense, TIintegrated FETs with a high-side on-resistance of2.9 mΩ and a low-side on-resistance of 1.2 mΩ. Thedevice also features accurate 0.5%, 0.9-V referencewith an ambient temperature range between –40°Cand 125°C. Competitive features include: very lowexternal component count, accurate load regulationand line regulation, auto-skip or FCCM modeoperation, and internal soft-start control

Features

Input Voltage Range (PVIN): 1.5 V to 16 VInput Bias Voltage (VDD) Range: 4.5 V to 22 VOutput Voltage Range: 0.6 V to 5.5 VIntegrated, 2.9-mΩ and 1.2-mΩ Power MOSFETs with 40-A Continuous Output CurrentVoltage Reference 0.6 V to 1.2 V in 50 mV Steps Using VSEL Pin±0.5%, 0.9-VREF Tolerance Range: –40°C to 125°C Junction TemperatureTrue Differential Remote Sense AmplifierD-CAP3™ Control LoopAdaptive On-Time Control with 8 PMBus™ Frequency Settings: 315 kHz, 425 kHz, 550 kHz, 650 kHz, 825 kHz, 900 kHz, 1.025 MHz, 1.125 MHzTemperature Compensated and Programmable Current Limit with RILIM and OC ClampChoice of Hiccup or Latch-Off OVP or UVPVDD UVLO External Adjustment by Precision ENPrebias Startup SupportEco-mode™ and FCCM SelectableFull Suite of Fault Protection and PGOODStandard VOUT_COMMAND and VOUT_MARGIN (HIGH and LOW)Pin-Strapping and On-the-Fly ProgrammingFault Reporting and WarningNVM Backup for Selected Commands1-MHz PMBus with PEC and SMB_ALRT#5 mm × 7 mm × 1.5 mm, 40-Pin, Stack Clipped LQFN-CLIP Package

Typical applications

• Enterprise Storage, SSD, NAS
• Industrial PCs, Automation, ATE, PLC, Video Surveillance
• Enterprise Server, Switches, Routers
• ASIC, SoC, FPGA, DSP Core and I/O Rails
• Wireless and Wired Communication Infrastructure

More information

• Datasheet
• IC product information