Integrated Circuits (ICs)

LTC4353CMS#PBF

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Analog Devices Inc./Maxim Integrated

DUAL LOW VOLTAGE IDEAL DIODE CONTROLLER

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DocumentsDatasheet R536 Reliability Data

Integrated Circuits (ICs)

LTC4353CMS#PBF

Active

Analog Devices Inc./Maxim Integrated

DUAL LOW VOLTAGE IDEAL DIODE CONTROLLER

Deep-Dive with AI

DocumentsDatasheet R536 Reliability Data

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC4353CMS#PBF

Applications	Telecom Infrastructure, Redundant Power Supplies
Current - Supply	1.5 mA
Delay Time - OFF	300 ns
Delay Time - ON	400 ns
FET Type	N-Channel
Internal Switch(s)	False
Mounting Type	Surface Mount
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	16-TFSOP
Package / Case	0.118 in, 3 mm Width
Ratio - Input:Output [custom]	2
Ratio - Input:Output [custom]	2
Supplier Device Package	16-MSOP
Type	Current Sharing Controller
Voltage - Supply [Max]	18 V
Voltage - Supply [Min]	2.9 V

LTC4353 Series

Dual Low Voltage Ideal Diode Controller

Part	Mounting Type	Delay Time - OFF	Delay Time - ON	Current - Supply	Package / Case	FET Type	Supplier Device Package	Voltage - Supply [Max]	Voltage - Supply [Min]	Applications	Operating Temperature [Max]	Operating Temperature [Min]	Ratio - Input:Output [custom]	Ratio - Input:Output [custom]	Type	Package / Case
Analog Devices Inc./Maxim Integrated LTC4353CDE#TRPBF	Surface Mount	300 ns	400 ns	1.5 mA	16-WFDFN Exposed Pad	N-Channel	16-DFN (4x3)	18 V	2.9 V	Redundant Power Supplies Telecom Infrastructure	70 °C	0 °C	2	2	Current Sharing Controller
Analog Devices Inc./Maxim Integrated LTC4353IMS#TRPBF	Surface Mount	300 ns	400 ns	1.5 mA	16-TFSOP	N-Channel	16-MSOP	18 V	2.9 V	Redundant Power Supplies Telecom Infrastructure	85 °C	-40 C	2	2	Current Sharing Controller	0.118 in 3 mm Width
Analog Devices Inc./Maxim Integrated LTC4353CDE#PBF	Surface Mount	300 ns	400 ns	1.5 mA	16-WFDFN Exposed Pad	N-Channel	16-DFN (4x3)	18 V	2.9 V	Redundant Power Supplies Telecom Infrastructure	70 °C	0 °C	2	2	Current Sharing Controller
Analog Devices Inc./Maxim Integrated LTC4353IDE#TRPBF	Surface Mount	300 ns	400 ns	1.5 mA	16-WFDFN Exposed Pad	N-Channel	16-DFN (4x3)	18 V	2.9 V	Redundant Power Supplies Telecom Infrastructure	85 °C	-40 C	2	2	Current Sharing Controller
Analog Devices Inc./Maxim Integrated LTC4353IDE#PBF	Surface Mount	300 ns	400 ns	1.5 mA	16-WFDFN Exposed Pad	N-Channel	16-DFN (4x3)	18 V	2.9 V	Redundant Power Supplies Telecom Infrastructure	85 °C	-40 C	2	2	Current Sharing Controller
Analog Devices Inc./Maxim Integrated LTC4353CMS#PBF	Surface Mount	300 ns	400 ns	1.5 mA	16-TFSOP	N-Channel	16-MSOP	18 V	2.9 V	Redundant Power Supplies Telecom Infrastructure	70 °C	0 °C	2	2	Current Sharing Controller	0.118 in 3 mm Width
Analog Devices Inc./Maxim Integrated LTC4353CMS#TRPBF	Surface Mount	300 ns	400 ns	1.5 mA	16-TFSOP	N-Channel	16-MSOP	18 V	2.9 V	Redundant Power Supplies Telecom Infrastructure	70 °C	0 °C	2	2	Current Sharing Controller	0.118 in 3 mm Width
Analog Devices Inc./Maxim Integrated LTC4353IMS#PBF	Surface Mount	300 ns	400 ns	1.5 mA	16-TFSOP	N-Channel	16-MSOP	18 V	2.9 V	Redundant Power Supplies Telecom Infrastructure	85 °C	-40 C	2	2	Current Sharing Controller	0.118 in 3 mm Width

Pricing

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

Distributor	Package	Quantity	$	Updated

Digikey	N/A	62	$ 10.93	1m+
	Tube	1	$ 11.51	1m+
		10	$ 8.07
		25	$ 7.18
		100	$ 6.19
		250	$ 5.71
		500	$ 5.42
		1000	$ 5.18

Description

General part information

LTC4353 Series

The LTC4353 controls external N-channel MOSFETs to implement an ideal diode function. It replaces two high power Schottky diodes and their associated heat sinks, saving power and board area. The ideal diode function permits low loss power supply ORing and supply holdup applications.The LTC4353 regulates the forward-voltage drop across the MOSFET to ensure smooth current transfer in diode-OR applications. A fast turn-on reduces the load voltage droop during supply switchover. If the input supply fails or is shorted, a fast turn-off minimizes reverse-current transients.The controller operates with supplies from 2.9V to 18V. If both supplies are below 2.9V, an external supply is needed at the VCCpin. Enable inputs can be used to turn off the MOSFET and put the controller in a low current state. Status outputs indicate whether the MOSFETs are on or off.ApplicationsRedundant Power SuppliesSupply HoldupHigh Availability Systems and ServersTelecom and Network Infrastructure