TPS54218 - 2.95V 至 6V 输入、2A 同步降压 SWIFT? 转换器

TPS54218是TI德州仪器公司的一款转换器（集成开关）产品，TPS54218是2.95V 至 6V 输入、2A 同步降压 SWIFT? 转换器，本站介绍了TPS54218的封装应用图解、特点和优点、功能等，并给出了与TPS54218相关的TI元器件型号供参考。

TPS54218 - 2.95V 至 6V 输入、2A 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

产品特性

Two, 30-mΩ (typical) MOSFETs for High-Efficiency at 2-A loads
Switching Frequency: 200 kHz to 2 MHz
Voltage Reference Over Temperature: 0.8 V ± 1%
Synchronizes to External Clock
Adjustable Soft-start/Sequencing
UV and OV Power Good Output
Low Operating and Shutdown Quiescent Current
Safe Start-up into Pre-Biased Output
Cycle-by-Cycle Current Limit, Thermal and Frequency Fold Back Protection
Operating Junction Temperature Range: –40°C to 150°C
Thermally Enhanced 3 mm × 3 mm 16-pin WQFN Package

产品应用

Low-Voltage, High-Density Power Systems
Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors
Broadband, Networking and Optical Communications Infrastructure

产品说明

TheTPS54218 device is a full featured 6-V, 2-A, synchronous, step-down, current mode converter with two integrated MOSFETs.

The TPS54218 device enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the device footprint with a small, 3 mm x 3 mm, thermally enhanced, QFN package.

The TPS54218 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.

Efficiency is maximized through the integrated 30-mΩ MOSFETs and a 350-μA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 μA by entering a shutdown mode.

Undervoltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the soft-start pin. An open-drain power good signal indicates the output is within 93% to 107% of its nominal voltage. Frequency fold back and thermal shutdown protects the device during an overcurrent condition.

Use SwitcherPro™ power supply design software to create, manage and share custom power supply designs for the TPS54218 by clicking here.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS54218	WQFN (16)	3.00 mm × 3.00 mm

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