
Allicdata Part #: | LTC3851AIGN#TRPBF-ND |
Manufacturer Part#: |
LTC3851AIGN#TRPBF |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Linear Technology/Analog Devices |
Short Description: | IC REG CTRLR BUCK 16SSOP |
More Detail: | Buck Regulator Positive Output Step-Down DC-DC Co... |
DataSheet: | ![]() |
Quantity: | 1000 |
Frequency - Switching: | 235kHz ~ 750kHz |
Base Part Number: | LTC3851 |
Supplier Device Package: | 16-SSOP |
Package / Case: | 16-SSOP (0.154", 3.90mm Width) |
Operating Temperature: | -40°C ~ 125°C (TJ) |
Control Features: | Current Limit, Enable, Frequency Control, Soft Start, Tracking |
Serial Interfaces: | -- |
Clock Sync: | No |
Synchronous Rectifier: | Yes |
Duty Cycle (Max): | 99% |
Series: | -- |
Voltage - Supply (Vcc/Vdd): | 4 V ~ 38 V |
Output Phases: | 1 |
Number of Outputs: | 1 |
Topology: | Buck |
Output Configuration: | Positive |
Function: | Step-Down |
Output Type: | Transistor Driver |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
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LTC3851AIGN#TRPBF Application Field and Working Principle
LTC3851AIGN#TRPBF is an integrated synchronous step-down switching regulator controller manufactured by Linear Technology. It is a member of Linear Technology’s family of PMIC - Voltage Regulators - DC DC Switching Controllers. All of the components of this regulator can be integrated into a single package with a small size and low voltage operation.
Application Field of LTC3851AIGN#TRPBF
The most common application of the LTC3851AIGN#TRPBF is in the power conversion in notebook computers and other portable electronics devices. It is designed to provide high-efficiency power conversion with low noise and minimal electromagnetic interference. It can also be used in desktop computers and other power supplies in a similar way.
Apart from the above mentioned application field, this regulator can also be used in other applications such as automotive electronics, wireless security systems, medical and industrial equipment, etc. It can provide up to 95% power efficiency with a fast transient response and adjustable frequency.
Working Principle of LTC3851AIGN#TRPBF
The working principle of LTC3851AIGN#TRPBF is based on voltage mode control. This approach provides excellent transient response with fast channel matching and does not require a V/I control loop for maintaining output stability. The regulator works in close coordination with a pulse width modulator (PWM) and a linear regulator (LDO) to provide stable and efficient power conversion.
The LTC3851AIGN#TRPBF uses an adaptive frequency control circuitry to determine the frequency of the PWM, according to the load conditions and thereby provides high efficiency over a wide range of load conditions, and allows the chip to be optimized for lowest component counts. In addition, the chip has other features such as an Undervoltage Lockout (UVLO) protection and an overcurrent protection function.
The LTC3851AIGN#TRPBF synchronizes with an external PWM oscillator and provides up to 1 MHz switching frequency for optimized efficiency. The wide input voltage range of the LTC3851AIGN#TRPBF enables it to be easily used in a variety of applications.
Conclusion
In conclusion, the LTC3851AIGN#TRPBF provides high-efficiency power conversion in notebook computers and other portable electronics devices. It is designed to provide low noise and minimal electromagnetic interference and can provide up to 95% power efficiency with a fast transient response and adjustable frequency. It is a member of Linear Technology’s family of PMIC - Voltage Regulators - DC DC Switching Controllers.
The specific data is subject to PDF, and the above content is for reference
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