TPS54340DDA - TI

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

Part No

TPS54340DDA
Manufacturer

TI
ChipWorker Part#

CW3315242
Category

DC to DC Converter
Package

HSOP-8
Description

Conv DC-DC 4.5V to 42V Step Down Single-Out 0.8V to 41V 3.5A 8Pin HSOP EP Tube
Documentation

Datasheet

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TPS54340DDA Specifications

Attribute	Attribute Value

Part Number	TPS54340DDA
Manufacturer	TI
ChipWorker Part#	CW3315242
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 ~ 41V
Output Current	3.5 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)	3.5 A
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	4.5 V
Input Voltage	4.5V ~ 42V
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Size-Length	5 mm
Size-Width	4 mm
Size-Height	1.55 mm
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	2014/12/17

Product Description

The TPS54340DDA is an adjustable output step down DC to DC converter with Eco-mode in 8 pin SO PowerPAD package. This step down regulator integrates a 92mohm 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 1µA when enable pin is pulled low. Undervoltage lockout is internally set at 4.3V but can be increased using enable pin. The output voltage start up ramp is internally controlled to provide controlled start up and eliminate overshoot. A wide switching frequency range allows either efficiency or external component size to be optimized. Frequency foldback and thermal shutdown protects internal and external components during an overload condition. The TPS54340DDA is supported by WEBENCH software tool.
Input voltage range from 4.5V to 42V (45V absolute maximum)
Adjustable output voltage range from 0.8V to 41.1V
3.5A continuous current and 4.5A minimum peak inductor current limit
High efficiency at light loads with pulse skipping Eco-mode
Low dropout at light loads with integrated BOOT recharge FET
100KHz to 2.5MHz fixed switching frequency
Synchronizes to external clock
Adjustable UVLO voltage and hysteresis
Internal soft start and accurate cycle by cycle current limit
Operating temperature range -40°C to 125°C
This device has limited built-in ESD protection. The leads should be shorted together or device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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