LTC1539IGW#PBF

Frequency - Switching:	Up to 400kHz
Base Part Number:	LTC1539
Supplier Device Package:	36-SSOP
Package / Case:	36-BSOP (0.295", 7.50mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Enable, Power on Reset, Soft Start
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	99%
Series:	--
Voltage - Supply (Vcc/Vdd):	3.5 V ~ 30 V
Output Phases:	1
Number of Outputs:	2
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

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Introduction of LTC1539IGW#PBF

The LTC1539IGW#PBF is a DC-DC switching controller designed and manufactured by Linear Technology Corporation. It is a powerful IC designed for a range of DC-DC application fields and can be used to provide a cost-effective and reliable power source for a variety of electronic projects.

Application field of LTC1539IGW#PBF

The LTC1539IGW#PBF is ideally suited for applications where low power levels are needed such as notebook computers, personal digital assistants (PDAs), medical instrumentation, power supplies and DC-DC converters. Additionally, this controller can operate in a variety of modes including buck, boost, buck-boost and flyback leading to wide application possibilities.In particular, the LTC1539IGW#PBF controller can be used in applications ranging from keyboard-lighting circuitry to off-line switching power supplies. In other words, the controller can be used to drive a variety of electronic projects efficiently and effectively, such as motor control, distributed power supply, personal computers and even more modern portable consumer electronics.

Working Principle of LTC1539IGW#PBF

The LTC1539IGW#PBF DC-DC switching controller has a few features that make it particularly well suited for applications such as those previously mentioned. First and foremost, the controller uses a variable frequency current mode control method. This allows the user to adjust and program the output current waveform to their needs. The other unique feature of this controller is the linear post regulation phase. This reduces the ripple current and gradient of the output current waveform.Additionally, the LTC1539IGW#PBF also has a PGA (Programmable Gain Amplifier) that can be used to modulate the current limit of the switch circuit. This is used to optimize the control loop of the application or to provide a low cost, quick current limit setting. Lastly, this controller also has the option for cycle-by-cycle current limiting. This means that the LTC1539IGW#PBF can be used in applications that require extreme protective circuit operation.

Conclusion

Overall, the LTC1539IGW#PBF controller is an excellent option for a wide range of applications such as low power levels, DC-DC converters, power supplies, motor control and more. The unique features of this controller allow the user to program the output current waveform in order to optimize the control loop of the application. Lastly, its linear post regulation phase reduces the ripple current and gradient of the output current waveform. As such, the LTC1539IGW#PBF controller is an ideal choice for anyone looking to make their application run more efficiently and effectively.

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