
LTC3525ISC6-5#TRMPBF Integrated Circuits (ICs) |
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Allicdata Part #: | LTC3525ISC6-5#TRMPBFTR-ND |
Manufacturer Part#: |
LTC3525ISC6-5#TRMPBF |
Price: | $ 1.72 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Linear Technology/Analog Devices |
Short Description: | IC REG BOOST 5V 0.4A SYNC SC70-6 |
More Detail: | Boost Switching Regulator IC Positive Fixed 5V 1 O... |
DataSheet: | ![]() |
Quantity: | 1000 |
500 +: | $ 1.56152 |
Voltage - Output (Min/Fixed): | 5V |
Base Part Number: | LTC3525 |
Supplier Device Package: | SC-70-6 |
Package / Case: | 6-VSSOP, SC-88, SOT-363 |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 125°C (TJ) |
Synchronous Rectifier: | Yes |
Frequency - Switching: | -- |
Current - Output: | 175mA |
Voltage - Output (Max): | -- |
Series: | -- |
Voltage - Input (Max): | 4.5V |
Voltage - Input (Min): | 1V |
Number of Outputs: | 1 |
Output Type: | Fixed |
Topology: | Boost |
Output Configuration: | Positive |
Function: | Step-Up |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
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The LTC3525ISC6-5#TRMPBF is a synchronous DC/DC converter and switching regulator from the family of PMIC voltage regulators. It is a compact, power efficient, PMIC that combines fast transient response with a wide input voltage range.
The LTC3525ISC6-5#TRMPBF has a wide input voltage range of 2.3V to 5.5V, and operates at a switch frequency of 1.2 MHz. It supports up to 1A of continuous output current and a maximum output voltage of 5.5V. It also features very low output ripple and low quiescent current. For improved thermal performance, the device is packaged in a thermally enhanced 3x3mm 10-pin TDFN package.
The LTC3525ISC6-5#TRMPBF is an ideal choice for powering most portable applications since it significantly reduces board space while offering excellent performance. It is well suited for a variety of applications such as industrial/portable instrumentation, medical/healthcare electronics, communication systems and automotive electronics.
Working Principle
The LTC3525ISC6-5#TRMPBF works by converting an input voltage, typically 2.3V to 5.5V, into an output voltage at a set, adjustable level and is capable of doing so while maintaining a constant output current. It uses a synchronous boost architecture with a fixed frequency. This type of architecture allows for faster transient response than other design architectures, such as the flyback design, due to its faster loop bandwidth.
The LTC3525ISC6-5#TRMPBF does this by using a pair of external MOSFETs connected to an output inductor to form the synchronous boost converter circuit. The design is further improved by the implementation of a voltage loop control. This control loop monitors the output voltage and adjusts the duty cycle of the MOSFETs based upon the feedback from the LTC3525ISC6-5#TRMPBF’s error amplifier. This ensures tight regulation of the output voltage, even when faced with fast load transients and load changes.
The LTC3525ISC6-5#TRMPBF also features a ripple rejection scheme that helps minimize switching noise. This is achieved by connecting an external Schottky diode in parallel with the MOSFETs, allowing current spikes to be absorbed and dampened before they reach the output.
Benefits and Applications
The LTC3525ISC6-5#TRMPBF provides a number of benefits for its application. First, its power efficient design allows it to operate at an efficiency of up to 94%. This helps improve battery life and allow for longer run times in portable or stand-alone systems. It also features an integrated soft-start circuit that allows for controlled start-ups without over-shooting the output voltage. This helps to protect sensitive components from damage during the start-up phase.
Another advantage of this device is its wide input voltage range which makes it suitable for a variety of applications. These applications include medical/healthcare electronics, industrial/portable instrumentation, communication systems and automotive electronics.
The LTC3525ISC6-5#TRMPBF is a highly efficient, compact, and power efficient PMIC that is well suited for most portable and non-portable applications. It significantly reduces board space while offering excellent performance, making it an ideal choice for cost-sensitive and space-limited applications.
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