| Allicdata Part #: | LM2675LDX-ADJ-ND |
| Manufacturer Part#: |
LM2675LDX-ADJ |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Texas Instruments |
| Short Description: | IC REG BUCK ADJ 1A 16WSON |
| More Detail: | Buck Switching Regulator IC Positive Adjustable 1.... |
| DataSheet: |  LM2675LDX-ADJ Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Voltage - Output (Min/Fixed): | 1.21V |
| Base Part Number: | LM2675 |
| Supplier Device Package: | 16-WSON (5x5) |
| Package / Case: | 16-WFDFN Exposed Pad |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -40°C ~ 125°C (TJ) |
| Synchronous Rectifier: | No |
| Frequency - Switching: | 260kHz |
| Current - Output: | 1A |
| Voltage - Output (Max): | 37V |
| Series: | SIMPLE SWITCHER® |
| Voltage - Input (Max): | 40V |
| Voltage - Input (Min): | 6.5V |
| Number of Outputs: | 1 |
| Output Type: | Adjustable |
| Topology: | Buck |
| Output Configuration: | Positive |
| Function: | Step-Down |
| Part Status: | Obsolete |
| Packaging: | Tape & Reel (TR) |
Description
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PMIC (Power Management Integrated Circuits) are a type of electronic devices that change and regulate the voltage, current flow and power used in electrical systems. Voltage Regulators are a subset of PMICs, and DC DC Switching Regulators are a sub-category of Voltage Regulators. The LM2675LDX-ADJ is one such DC DC Switching Regulator, and this article will discuss the application field and working principle of the LM2675LDX-ADJ. The LM2675LDX-ADJ is the adjustable feature of an excellent standard, cost-effective voltage regulator designed for low power applications. The device has a wide application field in a variety of electronic equipment, and is designed to regulate both input and output voltages. It is designed for on-board voltage regulation of odd-rail subsystems, such as +2.7VDC for negative rail applications (e.g. to provide several regulated voltages from an un-regulated battery). It is also suitable for double-rail regulation (e.g. +3.3VDC, +5VDC, +12VDC). The device includes a soft-start feature, a temperature-compensated reference, and adaptive on-time control that prevents varying input voltage effects on the output voltage.The LM2675LDX-ADJ works by driving an external P-channel MOSFET (Power MOSFET), which is necessary for the load current. The integrated circuit includes a voltage error amplifier, a current-limit comparator, a feedback loop, and a PWM (pulse-width modulation) oscillator. In order to rapidly switch on and off the MOSFET and control the current, the output voltage must be accurately regulated and the power MOSFET must be switched within the appropriate on and off times.The input signal is compared with the control signal generated from the voltage error amplifier output, which in turn is compared with the current-limit comparator with the purpose of controlling the inputs of the PWM oscillator. The PWM oscillator is used to generate a rectangular signal in order to control the current flow in the MOSFET. This signal is also fed to the clock input of the flip-flop IC to control the on/off interval of the MOSFET. The duration of the on/off states is determinate by the voltage error amplifier and accurately regulates the output voltage.The LM2675LDX-ADJ features an adaptive on-time control, high frequency operations up to 1500KHz, fast load regulation times, and an external soft-start capability for improved stability and noise reduction. The device also offers programmable over-current protection, an integrated low-impedance P-Channel MOSFET, and the parts are available with limited draws. Its small size, low power requirements and reliable performance make it an excellent choice for use in a variety of applications.In conclusion, the LM2675LDX-ADJ is an excellent DC DC Switching Regulator that is designed for low-power applications. It is suitable for both input and output voltage regulation, and is highly efficient and reliable. Its adaptive on-time control, fast load regulation, and external soft-start capability make it an excellent choice for many power and voltage management applications.
The specific data is subject to PDF, and the above content is for reference
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