Allicdata Part #: | LTC3105EDD#PBF-ND |
Manufacturer Part#: |
LTC3105EDD#PBF |
Price: | $ 4.08 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Linear Technology/Analog Devices |
Short Description: | IC CONV DC/DC 400MA HIEFF 10-DFN |
More Detail: | - Converter, Energy Harvesting Voltage Regulator I... |
DataSheet: | LTC3105EDD#PBF Datasheet/PDF |
Quantity: | 1324 |
1 +: | $ 3.71070 |
25 +: | $ 2.48044 |
100 +: | $ 2.10773 |
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Applications: | Converter, Energy Harvesting |
Voltage - Input: | 0.23 V ~ 5 V |
Number of Outputs: | 1 |
Voltage - Output: | 1.5 V ~ 5.25 V |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 10-WFDFN Exposed Pad |
Supplier Device Package: | 10-DFN (3x3) |
Base Part Number: | LTC3105 |
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The LTC3105EDD#PBF is a special purpose power management integrated circuit (PMIC) voltage regulator developed by Linear Technology Corporation. It is a high-efficiency boost regulator that provides up to 3.2A of output current while operating from an input voltage as low as 0.5V. The device is designed to efficiently step up low voltages from a single-cell Li-Ion battery or other low source voltage. It is available in an 8-lead, 3mm SSOP package.
The LTC3105EDD#PBF is ideally suited for battery-operated equipment, automotive applications, and portable electronics, where minimum power consumption and small size are desired. Its buck-boost topology allows it to efficiently operate from either a high- or low-input voltage, enabling the device to harvest energy from sources such as a solar panel, super capacitor, or an ultracapacitor. It is also a great solution for powering low-voltage microcontrollers, FPGA, and other digital components.
The LTC3105EDD#PBF includes an internal high-side N-channel MOSFET, reducing external component count and simplifying power line design. Other features include an adjustable switching frequency, adjustable output voltage, low ripple and output noise, soft-start, and external synchronization. Additionally, a power-fail detect circuit and programmable power-on reset signal provide an accurate threshold for the battery level. Last but not least, the device requires only a minimum number of peripheral components, allowing the board area to be minimized.
The LTC3105EDD#PBF is designed with a high-speed pulse-width modulation (PWM) controller, a frequency synchronization pulse modulator, and a high-side N-channel MOSFET. The PWM controller takes in the regulated voltage and adjusts the switching frequency as needed to relaod or increase the output voltage level. The voltage regulator output voltage is also adjustable and is based on an accurately trimmed reference. The MOSFET operates in a buck-boost mode, converting the voltage to the desired output.
The PWM controller also provides a soft-start feature to prevent the output voltage from ramping up too quickly and to ensure the output voltage is within specification. The controller senses the output voltage and adjusts the duty cycle of the MOSFET. Additionally, the pulse modulator synchronizes the switching frequency of the internal MOSFET with an external clock, if required. The power-fail detect circuit will monitor the input voltage and notify the system via a programmable power-on reset signal when the battery voltage drops below a certain threshold.
In conclusion, the LTC3105EDD#PBF is an ideal low-voltage, high-efficiency power management integrated circuit designed for battery-operated equipment, automotive applications, and portable electronics. Its buck-boost topology enables the device to operate from either a high or low input voltage. Thanks to its internal high-side N-channel MOSFET and the minimum number of external components, the board area can be kept to a minimum. It also includes features such as adjustable switching frequency, adjustable output voltage, low ripple and output noise, soft-start, and external synchronization.
The specific data is subject to PDF, and the above content is for reference
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