TPS54540DDAR - TI

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

Part No

TPS54540DDAR
Manufacturer

TI
ChipWorker Part#

CW344915
Category

DC to DC Converter
Package

HSOP-8
Description

Conv DC-DC 4.5V to 42V Step Down Single-Out 0.8V to 41.1V 5A 8Pin HSOP EP T/R
Documentation

Datasheet

TPS54540DDAR Global Supplier

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TPS54540DDAR Specifications

Attribute	Attribute Value

Part Number	TPS54540DDAR
Manufacturer	TI
ChipWorker Part#	CW344915
Category	DC to DC Converter
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	HSOP-8
Number of Outputs	1 Output
Output Voltage	0.8V ~ 41.1V
Output Current	5 A
Number of Positions	8 Position
Quiescent Current	146 µA
Number of Regulated Outputs	1 Output
Switching Frequency	100kHz ~ 2.5MHz
Topology	Buck
Input Voltage (Max)	42 V
Input Voltage (Min)	4.5 V
Output Voltage (Max)	41.1 V
Output Voltage (Min)	800 mV
Output Current (Max)	5 A
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	4.5 V
Input Voltage	42 V
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Operating Temperature	-40℃ ~ 150℃ (TJ)
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Contains Lead
HK STC License	NLR

Product Description

The TPS54540DDAR is a 4.5V to 42V input, 5A, step down DC/DC converter with Eco-mode in 8 pin HSOIC package. This step down regulator with an integrated high side MOSFET, the device survives load dump pulses up to 45V 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 146µA. Shutdown supply current is reduced to 2µA when the enable pin is pulled low. Undervoltage lockout is internally set at 4.3V but can be increased using the enable pin. The output voltage start up ramp is internally controlled to provide a controlled start up and eliminate overshoot. A wide switching frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protects internal and external components during an overload condition. It is used in USB dedicated charging ports and battery.
High efficiency at light loads with pulse skipping Eco-mode
100KHz to 2.5MHz fixed switching frequency
Synchronizes to external clock
Low dropout at light loads with integrated BOOT recharge FET
Adjustable UVLO voltage and hysteresis
0.8V 1% internal voltage reference
Supported by WEBENCH software tool
ESD sensitive device, take proper precaution while handling the device.

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