TPS54540BQDDARQ1 - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

TPS54540BQDDARQ1
Manufacturer

TI
ChipWorker Part#

CW117732242
Package

PowerSOIC-8
Description

Conv DC-DC 4.5V to 42V Step Down Single-Out 0.8V to 58.8V 5A Automotive 8Pin HSOP EP T/R
Documentation

Datasheet

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TPS54540BQDDARQ1 Specifications

Attribute	Attribute Value

Part Number	TPS54540BQDDARQ1
Manufacturer	TI
ChipWorker Part#	CW117732242
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	PowerSOIC-8
Number of Outputs	1 Output
Output Voltage	0.8V ~ 58.8V
Output Current	5 A
Switching Frequency	100kHz ~ 2.5MHz
Switching Current	7.9 A
Input Voltage (Max)	42 V
Input Voltage (Min)	4.5 V
Output Voltage (Max)	41.1 V
Output Voltage (Min)	0.8 V
Output Current (Max)	5 A
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
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Operating Temperature	-40℃ ~ 125℃ (TA)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

The TPS54540B-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 TPS54540B-Q1 is available in an 8-pin thermally-enhanced HSOP PowerPAD package.

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