TPS54540DDA - TI

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

Part No

TPS54540DDA
Manufacturer

TI
ChipWorker Part#

CW2661834
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 Tube
Documentation

Datasheet

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TPS54540DDA Specifications

Attribute	Attribute Value

Part Number	TPS54540DDA
Manufacturer	TI
ChipWorker Part#	CW2661834
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	2.5 MHz
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)	150 ℃
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	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
HK STC License	NLR

Product Description

The TPS54540DDA is a 5A Step-down DC-DC Converter with an integrated high side MOSFET and Eco-mode™. 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. Under-voltage lockout is internally set at 4.3V but can increase 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 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.
High efficiency at light loads with a pulse-skipping Eco-mode™
92mR High-side MOSFET
146µA Operating quiescent current and 2µA shutdown current
100kHz to 2.5MHz Adjustable 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
Green product and no Sb/Br
This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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