Voltage Regulators - Switching Regulators

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LTC3309A/B Synchronous Step-Down DC/DC Converters

Analog Devices LTC3309A/B Synchronous 6A Step-Down DC/DC Converters feature Silent Switcher™ architecture designed to minimize EMI/EMC emissions. LTC3309A/B Converters are ideal for applications such as optical networking, servers, telecom, and DC power systems. These small, high-efficiency, low-noise, monolithic synchronous converters operate from a 2.25V to 5.5V input supply. These regulators achieve fast transient response with small external components using a constant frequency, peak current mode control at switching frequencies up to 3MHz, and minimum on-time as low as 22ns. These ICs regulate output voltages as low as 500mV. The devices are available in a low profile 12-lead 2mm x 2mm x 0.74mm LQFN-12 package with an exposed pad for low thermal resistance.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package / Case	Topology	Output Voltage	Output Current	Number of Outputs	Quiescent Current	Switching Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Switching Voltage Regulators 5V, 6A, 10 MHz Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN LTC3309BEV#TRMPBF Analog Devices 1: $7.747 1.512In Stock	Mfr. Part # LTC3309BEV#TRMPBF Mouser Part # 584-3309BEVTRMPBF	Analog Devices	Switching Voltage Regulators 5V, 6A, 10 MHz Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN Learn More about Analog Devices ltc3309a step down converter	Datasheet	1.512In Stock	Cut Tape $7.747 $5.947 $5.491 $4.990 Reel $4.603 View $4.762 $4.546	Min.: 1 Mult.: 1 Max.: 1.209 : 500	SMD/SMT	LQFN-12	Buck	500 mV to 5.5 V	6 A	1 Output	1.2 mA	1 MHz to 3 MHz	- 40 C	+ 125 C	LTC3309	Reel, Cut Tape
Switching Voltage Regulators 5V, 6A, 10 MHz Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN LTC3309BJV#TRMPBF Analog Devices 1: $5.651 390In Stock	Mfr. Part # LTC3309BJV#TRMPBF Mouser Part # 584-3309BJVTRMPBF	Analog Devices	Switching Voltage Regulators 5V, 6A, 10 MHz Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN Learn More about Analog Devices ltc3309a step down converter	Datasheet	390In Stock	Cut Tape $5.651 $5.537 $5.412 $5.298 $5.218 $5.218 MouseReel Available	Min.: 1 Mult.: 1 Max.: 312	SMD/SMT	LQFN-12	Buck	500 mV to 5.5 V	6 A	1 Output	1.2 mA	1 MHz to 3 MHz	- 40 C	+ 125 C	LTC3309	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 5V, 6A, 10 MHz Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN LTC3309BMPV#TRMPBF Analog Devices 1: $10.789 486In Stock	Mfr. Part # LTC3309BMPV#TRMPBF Mouser Part # 584-3309BMPVTRMPB	Analog Devices	Switching Voltage Regulators 5V, 6A, 10 MHz Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN Learn More about Analog Devices ltc3309a step down converter	Datasheet	486In Stock	Cut Tape $10.789 $10.550 $10.322 $10.117 $9.957 $9.957 MouseReel Available	Min.: 1 Mult.: 1 Max.: 388	SMD/SMT	LQFN-12	Buck	500 mV to 5.5 V	6 A	1 Output	1.2 mA	1 MHz to 3 MHz	- 40 C	+ 125 C	LTC3309	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 5V, 6A Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN LTC3309AHV#TRMPBF Analog Devices 1: $5.514 39In Stock	Mfr. Part # LTC3309AHV#TRMPBF Mouser Part # 584-3309AHV#TRMPBF	Analog Devices	Switching Voltage Regulators 5V, 6A Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN Learn More about Analog Devices ltc3309a step down converter	Datasheet	39In Stock	Cut Tape $5.514 $5.400 $5.286 $5.172 $5.013 View $5.093 $4.944 $4.876 MouseReel Available	Min.: 1 Mult.: 1	SMD/SMT	LQFN-12	Buck	500 mV to 5.5 V	6 A	1 Output	1.2 mA	1 MHz to 3 MHz	- 40 C	+ 150 C	LTC3309	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 5V, 6A Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN LTC3309AJV#TRMPBF Analog Devices 1: $9.342 515In Stock	Mfr. Part # LTC3309AJV#TRMPBF Mouser Part # 584-LTC3309AJVTRMPBF	Analog Devices	Switching Voltage Regulators 5V, 6A Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN Learn More about Analog Devices ltc3309a step down converter	Datasheet	515In Stock	Cut Tape $9.342 $7.234 $6.847 $6.255 $6.107 Reel $6.107	Min.: 1 Mult.: 1 Max.: 412 : 500	SMD/SMT	LQFN-12	Buck	500 mV to 5.5 V	6 A	1 Output	1.2 mA	2 MHz	- 40 C	+ 150 C	LTC3309	Reel, Cut Tape
Switching Voltage Regulators 5V, 6A Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN LTC3309AMPV#TRMPBF Analog Devices 1: $9.912 15In Stock	Mfr. Part # LTC3309AMPV#TRMPBF Mouser Part # 584-3309AMPV#TRMPBF	Analog Devices	Switching Voltage Regulators 5V, 6A Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN Learn More about Analog Devices ltc3309a step down converter	Datasheet	15In Stock	Cut Tape $9.912 $9.695 $9.479 $9.285 $9.012 View $9.148 $8.875 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFN-12	Buck	500 mV to 5.5 V	6 A	1 Output	1.2 mA	1 MHz to 3 MHz	- 55 C	+ 150 C	LTC3309	Reel, Cut Tape
Switching Voltage Regulators 5V, 6A, 10 MHz Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN LTC3309BHV#TRMPBF Analog Devices 1: $10.686 52In Stock	Mfr. Part # LTC3309BHV#TRMPBF Mouser Part # 584-3309BHVTRMPBF	Analog Devices	Switching Voltage Regulators 5V, 6A, 10 MHz Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN Learn More about Analog Devices ltc3309a step down converter	Datasheet	52In Stock	Cut Tape $10.686 $8.317 $7.724 $7.075 $6.562 View $6.790 $6.334 Quote MouseReel Available	Min.: 1 Mult.: 1	SMD/SMT	LQFN-12	Buck	500 mV to 5.5 V	6 A	1 Output	1.2 mA	1 MHz to 3 MHz	- 40 C	+ 125 C	LTC3309	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 5V, 6A, 10 MHz Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN LTC3309BIV#TRMPBF Analog Devices 1: $8.955 37In Stock	Mfr. Part # LTC3309BIV#TRMPBF Mouser Part # 584-3309BIVTRMPBF	Analog Devices	Switching Voltage Regulators 5V, 6A, 10 MHz Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN Learn More about Analog Devices ltc3309a step down converter	Datasheet	37In Stock	Cut Tape $8.955 $6.927 $6.414 $5.856 $5.423 View $5.446 $5.218 $5.013	Min.: 1 Mult.: 1	SMD/SMT	LQFN-12	Buck	500 mV to 5.5 V	6 A	1 Output	1.2 mA	1 MHz to 3 MHz	- 40 C	+ 125 C	LTC3309	Reel, Cut Tape
Switching Voltage Regulators 5V, 6A Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN LTC3309AIV#TRPBF Analog Devices 1: $8.955 5In Stock	Mfr. Part # LTC3309AIV#TRPBF Mouser Part # 584-LTC3309AIV#TRPBF	Analog Devices	Switching Voltage Regulators 5V, 6A Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN Learn More about Analog Devices ltc3309a step down converter	Datasheet	5In Stock	Cut Tape $8.955 $6.927 $6.539 $5.981 $5.822 $5.013 MouseReel Available	Min.: 1 Mult.: 1	SMD/SMT	LQFN-12	Buck	500 mV to 5.5 V	6 A	1 Output	1.2 mA	1 MHz to 3 MHz	- 40 C	+ 125 C	LTC3309	Reel, Cut Tape, MouseReel
Switching Voltage Regulators 5V, 6A Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN LTC3309AJV#TRPBF Analog Devices 1: $9.342 263In Stock	Mfr. Part # LTC3309AJV#TRPBF Mouser Part # 584-LTC3309AJV#TRPBF	Analog Devices	Switching Voltage Regulators 5V, 6A Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN Learn More about Analog Devices ltc3309a step down converter	Datasheet	263In Stock	Cut Tape $9.342 $7.383 $6.847 $6.255 $6.255 MouseReel Available	Min.: 1 Mult.: 1 Max.: 210	SMD/SMT	LQFN-12	Buck	500 mV to 5.5 V	6 A	1 Output	1.2 mA	2 MHz	- 40 C	+ 150 C	LTC3309	Reel, Cut Tape, MouseReel

LTC3309A/B Synchronous Step-Down DC/DC Converters

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