| Allicdata Part #: | 497-5905-2-ND |
| Manufacturer Part#: |
L6725ATR |
| Price: | $ 0.78 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | STMicroelectronics |
| Short Description: | IC REG CTRLR BUCK 16SOIC |
| More Detail: | Buck Regulator Positive Output Step-Down DC-DC Co... |
| DataSheet: |  L6725ATR Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | $ 0.78000 |
| 10 +: | $ 0.75660 |
| 100 +: | $ 0.74100 |
| 1000 +: | $ 0.72540 |
| 10000 +: | $ 0.70200 |
Specifications
| Frequency - Switching: | 250kHz, 500kHz |
| Base Part Number: | L6725A |
| Supplier Device Package: | 16-SO |
| Package / Case: | 16-SOIC (0.154", 3.90mm Width) |
| Operating Temperature: | -40°C ~ 85°C (TA) |
| Control Features: | Current Limit, Phase Control, Power Good, Soft Start |
| Serial Interfaces: | -- |
| Clock Sync: | Yes |
| Synchronous Rectifier: | Yes |
| Duty Cycle (Max): | 100% |
| Series: | -- |
| Voltage - Supply (Vcc/Vdd): | 4.5 V ~ 18 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) |
Description
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L6725ATR application field and working principle
The L6725ATR is a DC/DC switching controller used to control the power stage of on-board DC/DC converters that supply a wide range of voltages in applications such as emerging computing and networking products. It is designed to regulate the output voltage by controlling the on-time of the power switch. It evenly splits the input voltage, which eliminates expensive components like a feedback circuit, simplifying the design.This DC/DC switching controller integrates a number of advanced features, including frequency dithering, low-side MOSFET short-circuit protection and input undervoltage protection. It is able to accurately control the output voltage at less than 1% variation across the entire input voltage range. The L6725ATR is available in the small TQFP package, making it suitable for extremely dense and size-constrained applications.
Application Field
The L6725ATR is used to control the power stage of on-board DC/DC converters that supply a wide range of voltages in emerging computing and networking products. It can also be used in cars, industrial control, communications and multimedia applications.Working Principle
The L6725ATR works by controlling the on-time of the power switch, split the input voltage evenly and regulate the output voltage by this method. The controller operates in switching mode, providing a simple and cost-effective structure. It is provided with an integrated, low side MOSFET switch, offering excellent protection against short-circuiting and input-undervoltage conditions. During the integration of this controller into a system, external components are required to complete the switching power supply design.The internal oscillator ensures a constant pulse-width modulation (PWM) frequency, while the low-side MOSFET switch current is limited by an external current-sense resistor, which provides excellent inductor peak current protection.The on-time is proportional to the voltage on an input voltage divider. The output voltage will remain within 1% tolerance if the output voltage level is adjusted by the resistor divider on the feedback input and the input divider on the input voltage.In summary, the L6725ATR DC-DC switching controller provides an easy and efficient way to control the power stage of DC/DC converters in applications such as computing and networking products, cars, industrial control, communications and multimedia applications. It offers a low-cost solution with excellent voltage regulation, short-circuit protection, and input undervoltage protection that simplify design and reduce the part count. The integrated, low-side MOSFET switch and external current-sense resistor provide efficient inductor peak current protection and a constant pulse-width modulation frequency.The specific data is subject to PDF, and the above content is for reference
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