| Allicdata Part #: | 296-38350-2-ND |
| Manufacturer Part#: |
TPS65279VRHHT |
| Price: | $ 2.47 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Texas Instruments |
| Short Description: | IC REG BCK ADJ/PROG 5A DL 36VQFN |
| More Detail: | Buck Switching Regulator IC Positive Adjustable (P... |
| DataSheet: |  TPS65279VRHHT Datasheet/PDF |
| Quantity: | 250 |
| 250 +: | $ 2.24126 |
| 500 +: | $ 2.01107 |
| 1250 +: | $ 1.69609 |
Specifications
| Voltage - Input (Max): | 18V |
| Supplier Device Package: | 36-VQFN (6x6) |
| Package / Case: | 36-VFQFN Exposed Pad |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -40°C ~ 85°C (TA) |
| Synchronous Rectifier: | Yes |
| Frequency - Switching: | 200kHz ~ 1.6MHz |
| Current - Output: | 5A |
| Voltage - Output (Max): | 1.95V |
| Voltage - Output (Min/Fixed): | 0.68V |
| Series: | -- |
| Voltage - Input (Min): | 4.5V |
| Number of Outputs: | 2 |
| Output Type: | Adjustable (Programmable) |
| Topology: | Buck |
| Output Configuration: | Positive |
| Function: | Step-Down |
| Part Status: | Active |
| Packaging: | Tape & Reel (TR) |
Description
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TPS65279VRHHT is a PMIC voltage regulator specifically designed for applications such as digital receivers and decoders, automotive, audio, and any other application that requires high current and a wide operating range. It is part of the family of Switching DC/DC regulators, which provide DC voltage conversion, where the input and output voltages can be either the same or different and are always adjustable.The TPS65279VRHHT is a step-down (or Buck) switching regulator and features a 3.3V fixed output voltage which can supplied up to 9A in a very small package. This type of regulator fits perfectly in applications where they are only required to power a particular section or subsets of the system. The Buck regulator offers a very high efficiency, reducing power loss and hence reduce the power dissipation in the system.The TPS65279VRHHT is based on a switching technique and uses PWM (pulse width modulation) to switch the voltage between the input and output. It works by turning the voltage from the input, which can be a wide range from 2V up to 10V, into a square wave. This square wave is then filtered to achieve the desired output voltage and protect the downstream components from high frequency noise.At the heart of the TPS65279VRHHT is the integrated power FET (field effect transistor). This component is essential in switching the voltage and current between the input and output and it is also responsible for maintaining the power efficiency. The FET can be driven with an external signal which can be an analog or PWM signal or a logic based signal for on/off control.Other features of the TPS65279VRHHT include an adjustable output current limit, differential remote sensing, over temperature protection and external power good signal. The output current limit feature is particularly useful when driving higher current loads, such as LEDs or motors. The differential remote sensing feature also compensates for voltage drops across the output rails due to high current flows.In conclusion, the TPS65279VRHHT is an excellent choice for applications that require a high output current and support for a wide range of input voltages. It is highly efficient and has many features to make it easy to use, such as adjustable output current limit and external power good signal.