LTC3309AMPV#TRPBF

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Analog Devices

CONV DC-DC 2.25V TO 5.5V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.5V TO 5.5V 6A 12-PIN LQFN EP T/R

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DocumentsTape and Reel Packaging LTpowerPlanner III Quick Start Guide +5

LTC3309AMPV#TRPBF

Active

Analog Devices

CONV DC-DC 2.25V TO 5.5V SYNCHRONOUS STEP DOWN SINGLE-OUT 0.5V TO 5.5V 6A 12-PIN LQFN EP T/R

Deep-Dive with AI

DocumentsTape and Reel Packaging LTpowerPlanner III Quick Start Guide +5

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3309AMPV#TRPBF

Current - Output	6 A
Frequency - Switching [Max]	3 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-55 °C
Output Configuration	Positive
Output Type	Programmable
Package / Case	12-VFQFN Exposed Pad
Supplier Device Package	12-LQFN (2x2)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.25 V
Voltage - Output (Max) [Max]	2.25 V
Voltage - Output (Min/Fixed) [Min]	0.5 V

LTC3309A Series

5V, 6A Synchronous Step-Down Silent Switcher in 2mm × 2mm LQFN

Part	Grade	Number of Outputs	Supplier Device Package	Voltage - Output (Min/Fixed) [Min]	Function	Voltage - Output (Max) [Max]	Topology	Output Type	Qualification	Package / Case	Output Configuration	Current - Output	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input (Max) [Max]	Frequency - Switching	Mounting Type	Voltage - Input (Min) [Min]	Frequency - Switching [Max]
Analog Devices LTC3309AJV-7#WTRMPBF	Automotive	1	12-LQFN (2x2)	0.5 V	Step-Down	5.5 V	Buck	Adjustable	AEC-Q100	12-VFQFN Exposed Pad	Positive	6 A	150 °C	-40 °C	5.5 V	2 MHz	Surface Mount	2.25 V
Analog Devices LTC3309BJV#TRPBF			12-LQFN (2x2)							12-VFQFN Exposed Pad							Surface Mount
Analog Devices LTC3309BEV#TRPBF			12-LQFN (2x2)							12-VFQFN Exposed Pad							Surface Mount
Analog Devices LTC3309AEV#TRMPBF		1	12-LQFN (2x2)	0.5 V	Step-Down	2.25 V	Buck	Programmable		12-VFQFN Exposed Pad	Positive	6 A	125 ¯C	-40 °C	5.5 V		Surface Mount	2.25 V	3 MHz
Analog Devices LTC3309AIV#TRPBF		1	12-LQFN (2x2)	0.5 V	Step-Down	2.25 V	Buck	Programmable		12-VFQFN Exposed Pad	Positive	6 A	125 ¯C	-40 °C	5.5 V		Surface Mount	2.25 V	3 MHz
Analog Devices LTC3309AHV#TRPBF		1	12-LQFN (2x2)	0.5 V	Step-Down	2.25 V	Buck	Programmable		12-VFQFN Exposed Pad	Positive	6 A	150 °C	-40 °C	5.5 V		Surface Mount	2.25 V	3 MHz
Analog Devices LTC3309AJV-7#TRMPBF		1	12-LQFN (2x2)	0.5 V	Step-Down	5.5 V	Buck	Adjustable		12-VFQFN Exposed Pad	Positive	6 A	150 °C	-40 °C	5.5 V	2 MHz	Surface Mount	2.25 V
Analog Devices LTC3309AMPV#TRPBF		1	12-LQFN (2x2)	0.5 V	Step-Down	2.25 V	Buck	Programmable		12-VFQFN Exposed Pad	Positive	6 A	150 °C	-55 °C	5.5 V		Surface Mount	2.25 V	3 MHz
Analog Devices LTC3309BMPV#TRPBF		2	12-LQFN (2x2)	0.5 V	Step-Down	5.5 V	Buck	Adjustable		12-VFQFN Exposed Pad	Positive	2 A	150 °C	-55 °C	5.5 V	6 MHz	Surface Mount	2.25 V
Analog Devices LTC3309BMPV#TRMPBF		2	12-LQFN (2x2)	0.5 V	Step-Down	5.5 V	Buck	Adjustable		12-VFQFN Exposed Pad	Positive	2 A	150 °C	-55 °C	5.5 V	6 MHz	Surface Mount	2.25 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2500	$ 6.90

Description

General part information

LTC3309A Series

The LTC3309A is a very small, high efficiency, low noise, monolithic synchronous 6A step-down DC/DC converter operating from a 2.25V to 5.5V input supply. Using constant frequency, peak current mode control at switching frequencies 1MHz to 3MHz and minimum on-time as low as 22ns, this regulator achieves fast transient response with small external components. Silent Switcher architecture minimizes EMI emissions.The LTC3309A operates in forced continuous or pulse skip mode for low noise, or the low-ripple Burst Mode operation for high efficiency at light loads, ideal for battery-powered systems. The IC regulates output voltages as low as 500mV. Other features include output overvoltage protection, short-circuit protection, thermal shutdown, clock synchronization, and up to 100% duty cycle operation for low dropout. The device is available in a low profile 12-lead 2mm × 2mm × 0.74mm LQFN package with exposed pad for low thermal resistance.For applications that require a faster power on, the LTC3309A-7 has a reduced power on and soft-start time.APPLICATIONSOptical Networking, Servers, TelecomAutomotive, Industrial, CommunicationsDistributed DC Power Systems (POL)FPGA, ASIC, µP Core SuppliesBattery Operated Systems

Documents

Technical documentation and resources

Tape and Reel Packaging

LTpowerPlanner III Quick Start Guide

Datasheet

High Power Density in a Small Form Factor

Datasheet

R523 Reliability Data

Reliability Data

LTC3309A: 5V, 6A Synchronous Step-Down Silent Switcher in 2mm x 2mm LQFN Data Sheet (Rev.B)

Data Sheet

Package Drawing - 12-Lead LQFN (2mm x 2mm x 0.74mm)

Package Drawing