DC-DC Converters

DC-DC converters are electronic devices used to convert DC electrical power efficiently from one voltage level to another. DC-DC converters are widely used to transform and distribute DC power in systems and instruments. DC power is usually available in the form of a system power supply or battery. The input to a dc-dc converter is an unregulated dc voltage Vg. The converter produces a regulated output voltage (5V or 3.3V) which is required by the electronic component ICs, having a magnitude (and possibly polarity) that differs from Vg.

The ideal dc-dc converter exhibits 100% efficiency in practice; efficiencies of 70% to 95% are typically obtained. This is achieved using switched-mode, or chopper circuits whose elements dissipate negligible power. Pulse-width modulation (PWM) allows control and regulation of the total output voltage.

DC-DC power converters are employed in a variety of applications, including power supplies for personal computers, office equipment, spacecraft power systems, laptop computers, and telecommunications equipment, as well as dc motor drives.

Return to main Power Management page

Getting Started

Power Management Overview

Power Managment

Resources

White Papers

Applications Notes

Videos

Traco Power Off-the-shelf DC/DC converters simplify challenges of ruggedized applications

Dual Step-Down DC-DC Converter Evaluation Board - NCP1532GEVB

RPA: DC/DC Converters for Industry and Electromobility

Product Links

DC-DC Controllers Ics

Isolated Board Mount Converters

Regulated High Voltage Converters

Linear Regulator Converters

DIN Rail Mount Converters

Power Management Development Kits

Compare Selected Compare Add Selected Add

Contract pricing display is unavailable at the moment. Prices shown are standard retail prices, orders placed will have contract pricing applied when processed.

Manufacturer Part No	Order Code	Manufacturer / Description	Availability	Price For	Price	Quantity	Control Mode	Supply Voltage Min	Supply Voltage Max	No. of Outputs	Duty Cycle (%)	IC Case / Package	No. of Pins	Switching Frequency	Topology	Operating Temperature Min	Operating Temperature Max	Product Range	Qualification
MIC2128YML-TR	2678436 Data Sheet + RoHS Date/Lot Code	DC/DC Controller, Synchronous Buck, Step Down, 4.5V to 75V Supply, 85 % Duty Cycle, 800 kHz, QFN-16 MICROCHIP You previously purchased this product. View in Order History	402 in stock + Check Stock & Lead Times 402 in stock for next day delivery (UK stock) More stock available week commencing 01/06/26	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2678436 2678436RL in Re-Reel	1+ £1.17 £1.40 25+ £0.974 £1.17 100+ £0.944 £1.13 5000+ £0.926 £1.11	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	Constant Frequency	4.5V	75V	1Outputs	85%	QFN	16Pins	800kHz	Synchronous Buck (Step Down)	-40°C	125°C	-	-
ISL8203MIRZ-T7A	2630548 Data Sheet + RoHS Date/Lot Code	DC/DC POL Converter, Adjustable, Buck, 1.1 MHz, 2.85 V to 6 V in, 0.8 V to 5 V out, 3 A, QFN-23 RENESAS You previously purchased this product. View in Order History	No Longer Manufactured	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2630548 2630548RL in Re-Reel	null	Restricted Item	-	-	-	-	-	-	23Pins	1.1MHz	Buck (Step Down)	-	85°C	ISL8203M Series	-
BD7682FJ-LBE2	2546775 Data Sheet + RoHS Date/Lot Code	DC/DC Controller-Converter, Quasi-Resonant, 15 V to 27.5 V, 1 Output, 120 kHz, SOP-8 ROHM You previously purchased this product. View in Order History	Available for back order + Check Stock & Lead Times More stock available week commencing 03/08/26 Contact me when back in stock	Each	2500+ £0.684 £0.82	Restricted Item Minimum order of 2500 items Multiples of 2500 only Please enter a valid quantity Add Min: 2500 Mult: 2500	Voltage Mode Control	15V	27.5V	1Outputs	-	SOP	8Pins	120kHz	-	-40°C	105°C	-	-
TLE63892GV50XUMA1	2710079 Data Sheet + RoHS Date/Lot Code	DC/DC Controller, Buck, Step Down, 5 V to 60 V Supply, 100 % Duty Cycle, 360 kHz, SOIC-14 INFINEON You previously purchased this product. View in Order History	No Longer Manufactured	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2710079 2710079RL in Re-Reel	null	Restricted Item	Current Mode Control	5V	60V	1Outputs	100%	SOIC	14Pins	360kHz	Buck (Step Down)	-40°C	150°C	-	AEC-Q100
STEVAL-ISA198V1	2707744 Data Sheet + RoHS	Switching Regulator, 500 kHz Switching Frequency, Step Down DC - DC, 2A, 4.5V - 60V Vin, 5V Vout STMICROELECTRONICS You previously purchased this product. View in Order History	12 in stock + Check Stock & Lead Times 12 in stock for next day delivery (UK stock) More stock available week commencing 29/03/27	Each	1+ £23.33 £28.00	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	-	-	-	-	-	-	-	-	-	-	-	-
171020302	2577475 Data Sheet + RoHS Date/Lot Code	DC/DC POL Converter, Adjustable, Synchronous Buck, 2 MHz, 800 mV to 3.6 V out, 2 A, BQFN-39 WURTH ELEKTRONIK You previously purchased this product. View in Order History	189 in stock + Check Stock & Lead Times 189 in stock for next day delivery (UK stock) More stock available week commencing 01/06/26	Each	1+ £7.43 £8.92 10+ £7.42 £8.90 25+ £7.40 £8.88 50+ £6.07 £7.28 100+ £5.45 £6.54 250+ £5.28 £6.34 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	-	-	-	-	-	39Pins	2MHz	Synchronous Buck (Step Down)	-	85°C	MagI3C VDRM Series	-