Integrated Circuits (ICs)

LTC7819RUJ#PBF

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40V LOW IQ, TRIPLE OUTPUT, 3-PHASE SYNCHRONOUS STEP-DOWN CONTROLLER

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Search across all available documentation for this part.

DocumentsDC2897A - Demo Manual (Rev.0)LTC7819: 40V Low IQ, Triple Output, 3-Phase Synchronous Step-Down Controller Data Sheet (Rev.0)

Integrated Circuits (ICs)

LTC7819RUJ#PBF

Active

Analog Devices Inc./Maxim Integrated

40V LOW IQ, TRIPLE OUTPUT, 3-PHASE SYNCHRONOUS STEP-DOWN CONTROLLER

Deep-Dive with AI

DocumentsDC2897A - Demo Manual (Rev.0)LTC7819: 40V Low IQ, Triple Output, 3-Phase Synchronous Step-Down Controller Data Sheet (Rev.0)

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC7819RUJ#PBF

Clock Sync	True
Control Features	Frequency Control, Current Limit, Power Good
Duty Cycle (Max) [Max]	100 %
Frequency - Switching [Max]	3 MHz
Frequency - Switching [Min]	100 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	3
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	3
Output Type	Transistor Driver
Package / Case	40-WFQFN Exposed Pad
Supplier Device Package	40-QFN (6x6)
Synchronous Rectifier	True
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	40 V
Voltage - Supply (Vcc/Vdd) [Min]	4.5 V

LTC7819 Series

Part	Board Type	Supplied Contents	Outputs and Type	Outputs and Type	Main Purpose	Outputs and Type [custom]	Current - Output	Voltage - Output	Frequency - Switching	Regulator Topology	Contents	Utilized IC / Part	Voltage - Input [Max]	Voltage - Input [Min]	Output Phases	Control Features	Output Configuration	Output Type	Mounting Type	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Function	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Topology	Package / Case	Duty Cycle (Max) [Max]	Number of Outputs	Frequency - Switching [Min]	Frequency - Switching [Max]
Analog Devices Inc./Maxim Integrated DC2897A	Fully Populated	Board(s)	Non-Isolated Non-Isolated Outputs	3	DC/DC Step Down	3	10 A 12 A	3.3 V 5 V 8.5 V	380 kHz	Buck	Board(s)	LTC7819	36 V	10 V
Analog Devices Inc./Maxim Integrated LTC7819RUJ#TRPBF															3	Current Limit Frequency Control Power Good	Positive	Transistor Driver	Surface Mount	40-QFN (6x6)	-40 °C	150 °C	Step-Down	4.5 V	40 V	Buck	40-WFQFN Exposed Pad	100 %	3	100 kHz	3 MHz
Analog Devices Inc./Maxim Integrated LTC7819RUJ#PBF															3	Current Limit Frequency Control Power Good	Positive	Transistor Driver	Surface Mount	40-QFN (6x6)	-40 °C	150 °C	Step-Down	4.5 V	40 V	Buck	40-WFQFN Exposed Pad	100 %	3	100 kHz	3 MHz

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	35	$ 8.56	1m+

Description

General part information

LTC7819 Series

The LTC7819 is a high performance triple step-down synchronous DC/DC switching regulator controller that drives all N-channel power MOSFET stages. Constant frequency current mode architecture allows a phase-lockable switching frequency of up to 3MHz. The LTC7819 operates from a wide 4.5V to 40V input supply range. Power loss and supply noise are minimized by operating the three controller output stages out-of-phase.The very low no-load quiescent current extends operating runtime in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC7819 features a precision 0.8V reference and power good output indicators. The MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous inductor current mode at light loads.The LTC7819 additionally features spread spectrum operation which significantly reduces the peak radiated and conducted noise on both the input and output supplies, making it easier to comply with electromagnetic interference (EMI) standards.APPLICATIONSAutomotive and TransportationIndustrialMilitary / Avionics

Documents

Technical documentation and resources

DC2897A - Demo Manual (Rev.0)

User Guide

LTC7819: 40V Low IQ, Triple Output, 3-Phase Synchronous Step-Down Controller Data Sheet (Rev.0)

Data Sheet