![LTC1702CGN Allicdata Electronics](https://files.allicdata.com/upload/common/default.jpg)
Allicdata Part #: | LTC1702CGN-ND |
Manufacturer Part#: |
LTC1702CGN |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Linear Technology/Analog Devices |
Short Description: | IC REG CTRLR BUCK 24SSOP |
More Detail: | Buck Regulator Positive Output Step-Down DC-DC Co... |
DataSheet: | ![]() |
Quantity: | 1290 |
Frequency - Switching: | 550kHz |
Base Part Number: | LTC1702 |
Supplier Device Package: | 24-SSOP |
Package / Case: | 24-SSOP (0.154", 3.90mm Width) |
Operating Temperature: | 0°C ~ 70°C (TA) |
Control Features: | Current Limit, Enable, Power Good, Soft Start |
Serial Interfaces: | -- |
Clock Sync: | No |
Synchronous Rectifier: | Yes |
Duty Cycle (Max): | 90% |
Series: | -- |
Voltage - Supply (Vcc/Vdd): | 3 V ~ 7 V |
Output Phases: | 2 |
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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LTC1702CGN application field and working principle
The LTC1702CGN is a power management integrated circuit (PMIC), a type of Voltage Regulator, used to control DC-DC switching. It is a constant frequency voltage mode DC-DC controller which incorporates a programmable switching frequency up to 650kHz, integrated soft start circuitry, and a wide input voltage range. The LTC1702CGN is used in a variety of applications, from powering LCD displays and LED lighting, to driving Buck and Buck-Boost converters for notebook computer power supplies.
Applications
The LTC1702CGN can be used in any application that requires a reliable, low cost, and efficient DC-DC switching controller. It is ideal for powering LCD displays, LED lighting, and other battery-powered applications. It can also be used to drive Buck and Buck-Boost converters for notebook computer power supplies. It is also suitable for use in battery charger, notebook adapter, power adapter, cellphone charger, and other DC-DC conversion applications.
Features & Benefits
The LTC1702CGN has several key features and benefits which make it an ideal solution for power management integrated circuit applications. It offers excellent efficiency, low power consumption, high switching frequency, and integrated soft-start functionality. Additionally, it has a wide operating temperature range, low EMI and output voltage ripple, and wide input / output voltage levels.
Working Principle
The LTC1702CGN operates using a constant frequency voltage mode control scheme. When the input voltage reaches a minimum level, the switching frequency automatically starts. This ensures a constant output voltage to the load, even if the input voltage changes. The switching frequency of the LTC1702CGN can be programmed up to 650kHz. The integrated soft start functionality helps reduce inrush current at the start-up and prevents over-voltage spikes during the start-up phase. During operation, the controller dynamically senses the actual inductor current to provide fast transient response and excellent line / load regulation without requiring external components.
Conclusion
The LTC1702CGN is a high performance DC-DC switching controller which provides excellent efficiency and low power consumption in a wide variety of applications. It offers excellent features, such as a wide input / output voltage range, a programmable switching frequency up to 650kHz, and integrated soft start circuitry. Its constant frequency voltage mode operation ensures a constant output voltage to the load, even if the input voltage changes. The LTC1702CGN is ideal for powering LCD displays and LED lighting, and for driving Buck and Buck-Boost converters for notebook computer power supplies.
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