LT1026IS8#TRPBF

Voltage - Output (Min/Fixed):	-Vin, 2Vin
Base Part Number:	LT1026
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	--
Current - Output:	15mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	10V
Voltage - Input (Min):	4V
Number of Outputs:	2
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive or Negative
Function:	Ratiometric
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to the LT1026IS8#TRPBF

The linear technologies LT1026IS8#TRPBF is a monolithic, step-up DC-to-DC switching regulator ideal for applications such as battery-powered equipment, portable systems, and distributed power supplies. The device is optimized for operating efficiencies of over 90%. It operates from an input voltage of 3V to 25V and can provide up to 2A of output current with a fixed output voltage of 8V. The LT1026IS8#TRPBF is offered in a 6-Pin SOT-23 package with a variety of switching frequencies.

Application Fields

The LT1026IS8#TRPBF switching regulator is ideal for applications such as powering low-voltage bus transceivers, providing regulated voltages to energy harvesting circuits, and operating multiple sub-systems from a common supply. Its small size, easy use, and the ability to handle up to 2A of output current make it a great fit for any number of applications. It can also be used in higher-power applications by adding external components, such as inductors and capacitors. This makes it particularly suitable for battery-backed systems, where it can provide the necessary regulation with minimal output ripple. Additionally, the switching frequencies available with the LT1026IS8#TRPBF make it well-suited for noisy environments, where other devices might be susceptible to electromagnetic interference.

Working Principle

The LT1026IS8#TRPBF is a hysteretic DC-to-DC switching regulator. It works by detecting the difference between the input voltage and the output voltage, then using two switches to step up the input voltage to the desired output. The device switches an internal transistor on and off, creating a switching waveform. A voltage divider converts this waveform into an average voltage that is compared with an internal reference voltage. If the average voltage is lower than the reference voltage, the device turns on its internal transistor. If the average voltage is higher than the reference voltage, the device turns off its internal transistor. The LT1026IS8#TRPBF has several features to ensure efficient, stable operation. These include an internal soft-start circuit and an adjustable peak current limit.

Conclusion

The linear technologies LT1026IS8#TRPBF is a monolithic, step-up DC-to-DC switching regulator optimized for operating efficiencies of over 90%. It operates from an input voltage of 3V to 25V and can provide up to 2A of output current with a fixed output voltage of 8V. It is ideal for use in applications such as powering low-voltage bus transceivers, providing regulated voltages to energy harvesting circuits, and operating multiple sub-systems from a common supply. It works by detecting the difference between the input voltage and the output voltage, then using two switches to step up the input voltage to the desired output. Its small size, easy use, and the ability to handle up to 2A of output current make it a great fit for a variety of applications.

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