Allicdata Part #: | LTC1735IF#TRPBF-ND |
Manufacturer Part#: |
LTC1735IF#TRPBF |
Price: | $ 3.87 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Linear Technology/Analog Devices |
Short Description: | IC REG CTRLR BUCK 20TSSOP |
More Detail: | Buck Regulator Positive Output Step-Down DC-DC Co... |
DataSheet: | LTC1735IF#TRPBF Datasheet/PDF |
Quantity: | 1000 |
2500 +: | $ 3.51505 |
Specifications
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Output Type: | Transistor Driver |
Function: | Step-Down |
Output Configuration: | Positive |
Topology: | Buck |
Number of Outputs: | 1 |
Output Phases: | 1 |
Voltage - Supply (Vcc/Vdd): | 4 V ~ 30 V |
Frequency - Switching: | 300kHz |
Duty Cycle (Max): | 99.4% |
Synchronous Rectifier: | Yes |
Clock Sync: | No |
Serial Interfaces: | -- |
Control Features: | Enable, Power Good, Soft Start |
Operating Temperature: | -40°C ~ 85°C (TA) |
Package / Case: | 20-TSSOP (0.173", 4.40mm Width) |
Supplier Device Package: | 20-TSSOP |
Base Part Number: | LTC1735 |
Description
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LTC1735IF#TRPBF application field and working principle
LTC1735IF#TRPBF is a series of DC-DC switching controller designed by Linear Technology. This controller is capable of delievering up 3A output current with 0.4V to 3.3V output voltage range. It can be used for various low-voltage DC-DC applications, such as portable electronic devices, automotive, and wireless power applications, etc.It is part of PMIC (Power Management ICs) type voltage regulators, a category of integrated circuits (ICs) responsible for controlling the supply of power in a circuit. This IC belongs to DC-DC switching controller, a type of voltage regulator which uses an external power switch to control the voltage output in different applications.The switching controller continuously compares the feedback voltage with an internal reference voltage, and modulates the external power switch cycle-by-cycle to generate the desired output voltage. The output voltage is controlled by a voltage-mode control, thus reducing the complexity and cost of the system. This series consists of a number of different models depends on the output current, output voltage and switching frequency ranges. The LTC1735IF#TRPBF is featured by 3A output current and 0.4V to 3.3V adjustable output voltage range.The input voltage of this device can range from 5V to 14V and it can support various topologies, such as buck, boost, buck-boost, Flyback, SEPIC and Cuk converters. This device also has overtemperature protection, with an overall current limit of 4A.The salient feature of this device is its ability to operate at high duty cycle for step-up applications, allowing for up to 98% duty cycle operation with an adjustable current limit. This is made possible by using an average current limit control method, compared to a peak current limit control used in traditional solutions.In terms of hardware design, the LTC1735IF#TRPBF is used along with an external power switch and an external Schottky diode, with its SET pin connected directly to an external resistor to set the output voltage. This is further connected to a feedback resistor to sense the output voltage.In conclusion, the LTC1735IF#TRPBF DC-DC switching controller is designed to provide an adjustable low-voltage output range in various applications, with high efficiency and fast transient response. Its various protection schemes, two level current limit control, voltage-mode control and adjustable duty cycles make it a versatile solution for low voltage power applications.The specific data is subject to PDF, and the above content is for reference
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