TPS54388-Q1 - 汽车类 2.95V 至 6V 输入、3A、2MHz 同步降压 SWIFT DCDC 转换器

TPS54388-Q1是TI德州仪器公司的一款转换器（集成开关）产品，TPS54388-Q1是汽车类 2.95V 至 6V 输入、3A、2MHz 同步降压 SWIFT DCDC 转换器，本站介绍了TPS54388-Q1的封装应用图解、特点和优点、功能等，并给出了与TPS54388-Q1相关的TI元器件型号供参考。

TPS54388-Q1 - 汽车类 2.95V 至 6V 输入、3A、2MHz 同步降压 SWIFT DCDC 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

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
Two 12-mΩ (typical) MOSFETs for High Efficiency at 3-A Loads
200-kHz to 2-MHz Switching Frequency
0.8 V ± 1% Voltage Reference Over Temperature (–40°C to 150°C)
Synchronizes to External Clock
Adjustable Slow Start and Sequencing
UV and OV Power-Good Output
–40°C to 150°C Operating Junction Temperature Range
Thermally Enhanced 3-mm × 3-mm 16-pin PWQFN
Pin Compatible to TPS54418

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

The TPS54388-Q1 device is a full-featured 6-V, 3-A, synchronous step-down current-mode converter with two integrated MOSFETs.

The TPS54388-Q1 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 IC footprint with a small 3-mm × 3-mm thermally enhanced QFN package.

The TPS54388-Q1 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (Vref) over temperature.

The integrated 12-mΩ MOSFETs and 515-μA typical supply current maximize efficiency. Entering shutdown mode using the enable pin reduces shutdown supply current to 5.5 µA, typical.

The internal undervoltage lockout setting is at 2.45 V, but programming the threshold with a resistor network on the enable pin can increase the setting. The slow-start pin sets the output-voltage start-up ramp. An open-drain power-good signal indicates when the output is within 93% to 107% of its nominal voltage.

Frequency foldback and thermal shutdown protect the device during an overcurrent condition.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS54388-Q1	PWQFN (16)	3.00 mm × 3.00 mm

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