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 (USD) 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 LTC3309BJV#TRMPBF Analog Devices 1: $4.96 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 $4.96 $4.86 $4.75 $4.65 $4.58 $4.58 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 LTC3309BEV#TRMPBF Analog Devices 1: $6.80 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 $6.80 $5.22 $4.82 $4.38 Reel $4.04 View $4.18 $3.99	Min.: 1 Mult.: 1 Max.: 1,369 : 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 LTC3309BMPV#TRMPBF Analog Devices 1: $9.47 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 $9.47 $9.26 $9.06 $8.88 $8.74 $8.74 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 LTC3309AJV#TRMPBF Analog Devices 1: $8.31 815In 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	815In Stock	Cut Tape $8.31 $6.41 $5.94 $5.41 $5.01 Reel $5.00	Min.: 1 Mult.: 1 Max.: 652 : 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 LTC3309AHV#TRMPBF Analog Devices 1: $4.84 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 $4.84 $4.74 $4.64 $4.54 $4.40 View $4.47 $4.34 $4.28 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#TRPBF Analog Devices 1: $8.31 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 $8.31 $6.41 $5.94 $5.41 $5.41 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
Switching Voltage Regulators 5V, 6A Synchronous Step-Down Silent Switcher in 2mm 2mm LQFN LTC3309AMPV#TRMPBF Analog Devices 1: $8.70 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 $8.70 $8.51 $8.32 $8.15 $7.91 View $8.03 $7.79 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: $9.38 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 $9.38 $7.30 $6.78 $6.21 $5.76 View $5.96 $5.56 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: $7.86 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 $7.86 $6.08 $5.63 $5.14 $4.76 View $4.78 $4.58 $4.40	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: $7.86 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 $7.86 $6.08 $5.74 $5.25 $5.11 $4.40 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

LTC3309A/B Synchronous Step-Down DC/DC Converters

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