LTC3419IDD#PBF

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DUAL MONOLITHIC 600MA SYNCHRONOUS STEP-DOWN REGULATOR

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LTC3419IDD#PBF

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Analog Devices

DUAL MONOLITHIC 600MA SYNCHRONOUS STEP-DOWN REGULATOR

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DocumentsR457 Reliability Data Datasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3419IDD#PBF

Current - Output	600 mA
Frequency - Switching	2.25 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	8-WFDFN Exposed Pad
Supplier Device Package	8-DFN (3x3)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.5 V
Voltage - Output (Max) [Max]	5.5 V
Voltage - Output (Min/Fixed)	0.6 V

LTC3419 Series

Dual Monolithic 600mA Synchronous Step-Down Regulator

Part	Voltage - Output (Max) [Max]	Supplier Device Package	Number of Outputs	Package / Case	Mounting Type	Voltage - Input (Min) [Min]	Current - Output	Voltage - Output (Min/Fixed)	Frequency - Switching	Output Type	Topology	Output Configuration	Operating Temperature [Min]	Operating Temperature [Max]	Function	Voltage - Input (Max) [Max]	Package / Case [x]	Package / Case [x]	Voltage - Output (Min/Fixed) [Min]	Voltage - Output (Min/Fixed) [Max]	Output Type
Analog Devices LTC3419IDD#TRPBF	5.5 V	8-DFN (3x3)	2	8-WFDFN Exposed Pad	Surface Mount	2.5 V	600 mA	0.6 V	2.25 MHz	Adjustable	Buck	Positive	-40 °C	125 ¯C	Step-Down	5.5 V
Analog Devices LTC3419IDD#PBF	5.5 V	8-DFN (3x3)	2	8-WFDFN Exposed Pad	Surface Mount	2.5 V	600 mA	0.6 V	2.25 MHz	Adjustable	Buck	Positive	-40 °C	125 ¯C	Step-Down	5.5 V
Analog Devices LTC3419IMS#PBF	5.5 V	10-MSOP	2	10-MSOP 10-TFSOP	Surface Mount	2.5 V	600 mA	0.6 V	2.25 MHz	Adjustable	Buck	Positive	-40 °C	125 ¯C	Step-Down	5.5 V	3 mm	0.118 in
Analog Devices LTC3419EDD-1#TRPBF		8-DFN (3x3)	2	8-WFDFN Exposed Pad	Surface Mount	2.5 V	600 mA		2.25 MHz		Buck	Positive	-40 °C	125 ¯C	Step-Down	5.5 V			1.575 V	1.8 V	1.81 mOhm
Analog Devices LTC3419IDD-1#TRPBF		8-DFN (3x3)	2	8-WFDFN Exposed Pad	Surface Mount	2.5 V	600 mA		2.25 MHz		Buck	Positive	-40 °C	125 ¯C	Step-Down	5.5 V			1.575 V	1.8 V	1.81 mOhm
Analog Devices LTC3419EMS#TRPBF	5.5 V	10-MSOP	2	10-MSOP 10-TFSOP	Surface Mount	2.5 V	600 mA	0.6 V	2.25 MHz	Adjustable	Buck	Positive	-40 °C	125 ¯C	Step-Down	5.5 V	3 mm	0.118 in
Analog Devices LTC3419IMS-1#PBF		10-MSOP	2	10-MSOP 10-TFSOP	Surface Mount	2.5 V	600 mA		2.25 MHz		Buck	Positive	-40 °C	125 ¯C	Step-Down	5.5 V	3 mm	0.118 in	1.575 V	1.8 V	1.81 mOhm
Analog Devices LTC3419EDD#PBF	5.5 V	8-DFN (3x3)	2	8-WFDFN Exposed Pad	Surface Mount	2.5 V	600 mA	0.6 V	2.25 MHz	Adjustable	Buck	Positive	-40 °C	125 ¯C	Step-Down	5.5 V
Analog Devices LTC3419EMS-1#PBF		10-MSOP	2	10-MSOP 10-TFSOP	Surface Mount	2.5 V	600 mA		2.25 MHz		Buck	Positive	-40 °C	125 ¯C	Step-Down	5.5 V	3 mm	0.118 in	1.575 V	1.8 V	1.81 mOhm
Analog Devices LTC3419IMS-1#TRPBF		10-MSOP	2	10-MSOP 10-TFSOP	Surface Mount	2.5 V	600 mA		2.25 MHz		Buck	Positive	-40 °C	125 ¯C	Step-Down	5.5 V	3 mm	0.118 in	1.575 V	1.8 V	1.81 mOhm

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 8.07
		10	$ 5.54
		25	$ 4.88
		100	$ 4.15
		250	$ 3.79
		500	$ 3.57
		1000	$ 3.39
		2500	$ 3.25

Description

General part information

LTC3419 Series

The LTC3419 is a dual, 2.25MHz, constant-frequency, synchronous step-down DC/DC converter in a tiny 3mm × 3mm DFN package. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Low output voltages are supported with the 0.6V feedback reference voltage. Each regulator can supply 600mA output current.The input voltage range is 2.5V to 5.5V, making it ideal for Li-Ion and USB powered applications. Supply current during operation is only 35µA and drops to <1µA in shutdown. A user-selectable mode input allows the user to trade off between high efficiency Burst Mode operation and pulse-skipping mode.An internally set 2.25MHz switching frequency allows the use of tiny surface mount inductors and capacitors. Internal soft-start reduces inrush current during start-up. Both outputs are internally compensated to work with ceramic output capacitors. The LTC3419 is available in a low profile (0.75mm) 3mm × 3mm DFN package. The LTC3419 is also available in a fixed output voltage configuration selected via internal resistor dividers.ApplicationsCellular TelephonesDigital Still CamerasWireless and DSL ModemsPortable Media PlayersPDAs/Palmtop PCs