TPS54540-Q1 - 具有集成高侧 MOSFET 的 42V、5A 降压稳压器

TPS54540-Q1是TI德州仪器公司的一款转换器（集成开关）产品，TPS54540-Q1是具有集成高侧 MOSFET 的 42V、5A 降压稳压器，本站介绍了TPS54540-Q1的封装应用图解、特点和优点、功能等，并给出了与TPS54540-Q1相关的TI元器件型号供参考。

TPS54540-Q1 - 具有集成高侧 MOSFET 的 42V、5A 降压稳压器 - 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 H1C
- Device CDM ESD Classification Level C3B
High-Efficiency at Light Loads With Pulse-Skipping Eco-mode™
92-mΩ High-Side MOSFET
146-μA Operating Quiescent Current and 2-µA Shutdown Current
100-kHz to 2.5-MHz Adjustable Switching Frequency
Synchronizes to External Clock
Low Dropout at Light Loads With Integrated BOOT Recharge FET
Adjustable UVLO Voltage and Hysteresis
0.8-V 1% Internal Voltage Reference
8-Pin HSOP PowerPAD™ Package
–40°C to 150°C TJ Operating Range
Supported by WEBENCH® Software Tool

产品应用

Vehicle Accessories: GPS (See SLVA412), Entertainment, ADAS, eCall
USB-Dedicated Charging Ports and Battery Chargers (See SLVA464)
Industrial Automation and Motor Control
12-V, 24-V, and 48-V Industrial, Automotive, and Communications Power Systems

SPACE

产品说明

The TPS54540-Q1 device is a 42-V, 5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 65 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no load supply current to 146 μA. Shutdown supply current is reduced to 2 μA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.

A wide adjustable frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protect internal and external components during an overload condition.

The TPS54540-Q1 is available in an 8-pin thermally-enhanced HSOP PowerPAD package.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TPS54540-Q1	HSOP (8)	4.89 mm × 3.90 mm

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