LTC3419EDD#TRPBF

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Analog Devices Inc./Maxim Integrated

DUAL MONOLITHIC 600MA SYNCHRONOUS STEP-DOWN REGULATOR

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LTC3419EDD#TRPBF

Active

Analog Devices Inc./Maxim Integrated

DUAL MONOLITHIC 600MA SYNCHRONOUS STEP-DOWN REGULATOR

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Description Specifications Series Pricing CAD Documents

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

Technical Specifications

Parameters and characteristics for this part

Specification	LTC3419EDD#TRPBF

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
Package Length	3 mm
Package Name	8-DFN
Package Width	3 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	5.5 V
Voltage - Input (Min)	2.5 V
Voltage - Output (Max)	5.5 V
Voltage - Output (Min/Fixed)	0.6 V

LTC3419 Series

Dual Monolithic 600mA Synchronous Step-Down Regulator

Part	Current - Output	Voltage - Input (Max)	Voltage - Output (Max)	Package / Case	Voltage - Output (Min/Fixed)	Synchronous Rectifier	Output Configuration	Frequency - Switching	Voltage - Input (Min)	Function	Output Type	Package Width	Package Name	Package Length	Number of Outputs	Mounting Type	Operating Temperature (Max)	Operating Temperature (Min)	Topology	Voltage - Output (Min)	Voltage - Output (Fixed)
Analog Devices Inc./Maxim Integrated LTC3419IDD#TRPBF	600 mA	5.5 V	5.5 V	8-WFDFN Exposed Pad	0.6 V	Yes	Positive	2.25 MHz	2.5 V	Step-Down	Adjustable	3 mm	8-DFN	3 mm	2	Surface Mount	125 °C	-40 °C	Buck
Analog Devices Inc./Maxim Integrated LTC3419EMS#PBF	600 mA	5.5 V	5.5 V		0.6 V	Yes	Positive	2.25 MHz	2.5 V	Step-Down	Adjustable	3 mm	10-MSOP 10-TFSOP	0.118 in	2	Surface Mount	125 °C	-40 °C	Buck
Analog Devices Inc./Maxim Integrated LTC3419IDD#PBF	600 mA	5.5 V	5.5 V	8-WFDFN Exposed Pad	0.6 V	Yes	Positive	2.25 MHz	2.5 V	Step-Down	Adjustable	3 mm	8-DFN	3 mm	2	Surface Mount	125 °C	-40 °C	Buck
Analog Devices Inc./Maxim Integrated LTC3419EMS-1#TRPBF	600 mA	5.5 V				Yes	Positive	2.25 MHz	2.5 V	Step-Down	Fixed	3 mm	10-MSOP 10-TFSOP	0.118 in	2	Surface Mount	125 °C	-40 °C	Buck	1.575 V	1.8 V
Analog Devices Inc./Maxim Integrated LTC3419IMS#PBF	600 mA	5.5 V	5.5 V		0.6 V	Yes	Positive	2.25 MHz	2.5 V	Step-Down	Adjustable	3 mm	10-MSOP 10-TFSOP	0.118 in	2	Surface Mount	125 °C	-40 °C	Buck
Analog Devices Inc./Maxim Integrated LTC3419EDD-1#TRPBF	600 mA	5.5 V		8-WFDFN Exposed Pad		Yes	Positive	2.25 MHz	2.5 V	Step-Down	Fixed	3 mm	8-DFN	3 mm	2	Surface Mount	125 °C	-40 °C	Buck	1.575 V	1.8 V
Analog Devices Inc./Maxim Integrated LTC3419IDD-1#TRPBF	600 mA	5.5 V		8-WFDFN Exposed Pad		Yes	Positive	2.25 MHz	2.5 V	Step-Down	Fixed	3 mm	8-DFN	3 mm	2	Surface Mount	125 °C	-40 °C	Buck	1.575 V	1.8 V
Analog Devices Inc./Maxim Integrated LTC3419EMS#TRPBF	600 mA	5.5 V	5.5 V		0.6 V	Yes	Positive	2.25 MHz	2.5 V	Step-Down	Adjustable	3 mm	10-MSOP 10-TFSOP	0.118 in	2	Surface Mount	125 °C	-40 °C	Buck
Analog Devices Inc./Maxim Integrated LTC3419IMS#TRPBF	600 mA	5.5 V	5.5 V		0.6 V	Yes	Positive	2.25 MHz	2.5 V	Step-Down	Adjustable	3 mm	10-MSOP 10-TFSOP	0.118 in	2	Surface Mount	125 °C	-40 °C	Buck
Analog Devices Inc./Maxim Integrated LTC3419IMS-1#PBF	600 mA	5.5 V				Yes	Positive	2.25 MHz	2.5 V	Step-Down	Fixed	3 mm	10-MSOP 10-TFSOP	0.118 in	2	Surface Mount	125 °C	-40 °C	Buck	1.575 V	1.8 V

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LTC3419EDD#TRPBF | Datasheet

R457 Reliability Data