LTC3824MPMSE#PBF

Frequency - Switching:	200kHz ~ 600kHz
Base Part Number:	LTC3824
Supplier Device Package:	10-MSOP-EP
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
Operating Temperature:	-55°C ~ 150°C (TJ)
Control Features:	Frequency Control, Soft Start
Serial Interfaces:	--
Clock Sync:	Yes
Synchronous Rectifier:	No
Duty Cycle (Max):	100%
Series:	--
Voltage - Supply (Vcc/Vdd):	4 V ~ 60 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

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LTC3824MPMSE#PBF Application Field and Working Principle

The LTC3824MPMSE#PBF DC to DC switching controller offers a multi-phased synchronous buck or multi-output control solution for achievement of high efficiency and compact power system design. Designed for a wide range of applications, the LTC3824MPMSE#PBF is suitable for use in automotive, industrial, computers, communications and consumer electronic products.

The controller provides for a full range of intelligent features including voltage sequencing, under voltage lockout, digital soft-start, dynamic voltage scaling, cycle-by-cycle current limit and thermal foldback. It is available in an 8-pin 3mm x 3mm DFN package and is specified to operate over the total temperature range of -40°C to +125°C.

Working Principle of the LTC3824MPMSE#PBFThe LTC3824MPMSE#PBF is a voltage mode, constant frequency switching controller which features an advanced control structure. This advanced control structure supports a wide range of operating modes.

The voltage mode control allows the controller to maintain a constant output voltage level over wide line and load conditions, while the constant frequency control ensures a smooth operating frequency range, reducing the size and cost of the output filters.The LTC3824MPMSE#PBF includes an on-chip loop compensation network. The on-chip compensation ensures fast transient response, reducing the need for external components.The LTC3824MPMSE#PBF also supports multi-phase synchronous buck operation for higher power systems. This feature increases the useable output voltage range due to the increased number of switching transitions, reducing the need for additional downstream voltage regulation.

The digital soft-start feature reduces the peak power dissipation at turn-on, eliminating the need for a resistor divider. The controller also features internal over-voltage protection and cycle-by-cycle current limit for maximum output current capability and reliability.

In summary, the LTC3824MPMSE#PBF DC to DC switching controller offers a powerful and cost effective solution for point-of-load switching applications. With its advanced features, fast transient response and wide operating range, the LTC3824MPMSE#PBF is an ideal choice for power system design.

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