| Allicdata Part #: | SP7651ER-L-ND |
| Manufacturer Part#: |
SP7651ER-L |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | MaxLinear, Inc. |
| Short Description: | IC REG BUCK ADJ 3A SYNC 26DFN |
| More Detail: | Buck Switching Regulator IC Positive Adjustable 0.... |
| DataSheet: |  SP7651ER-L Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Voltage - Input (Max): | 20V |
| Supplier Device Package: | 26-DFN (7x4) |
| Package / Case: | 26-PowerVFDFN |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -40°C ~ 85°C (TA) |
| Synchronous Rectifier: | Yes |
| Frequency - Switching: | 900kHz |
| Current - Output: | 3A |
| Voltage - Output (Max): | 19V |
| Voltage - Output (Min/Fixed): | 0.8V |
| Series: | Power Blox™ |
| Voltage - Input (Min): | 2.5V |
| Number of Outputs: | 1 |
| Output Type: | Adjustable |
| Topology: | Buck |
| Output Configuration: | Positive |
| Function: | Step-Down |
| Part Status: | Discontinued at Digi-Key |
| Packaging: | Bulk |
Description
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SP7651ER-L Application Field and Working Principle
Introduction
The SP7651ER-L from STMicroelectronics is an advanced DC-DC synchronous switching regulator. The device is a member of the PowerSO 10 family of highly-integrated switched-mode power supply integrated circuits (ICs). It can offer high switching frequencies and a wide input/output voltage range. It is suitable for applications such as cellular phones, portable applications, PDAs, digital cameras, and other electronic systems. The SP7651ER-L can be used in buck (step-down), boost (step-up), and SEPIC (single-ended primary inductance converter) topologies.Features
The SP7651ER-L features a wide 2.6V to 5.5V operating input voltage range and up to 2.4A peak output current capability. It has an adjustable output voltage range down to 0.6V and integrated EEPROM for storing user-defined settings. The device includes an efficient power MOSFET driver with 2A peak drive current, a fast loop response time, and an adjustable switching frequency from 300kHz to 2MHz. It also has other features such as adjustable soft-start for controlling the inrush current, a thermal protection circuit, adjustable slope compensation for precise load regulation, and cycle-by-cycle current limit.Application Field and Working Principle
The SP7651ER-L is suitable for a wide range of switched-mode power supply applications that require a high efficiency, fast loop response time, and low standby current. It is ideal for power supplies with medium to high input voltage and output current requirements. It can be used in battery-powered systems, charging, and other power supply systems.The working principle of the SP7651ER-L is based on the buck topology synchronous converter. It uses the main power switch and synchronous rectifier to reduce switching losses and to maximize efficiency. The integrated MOSFET driver develops a PWM signal with an adjustable timing. The feedback loop then regulates the output voltage by adjusting the duty cycle. The SP7651ER-L features an integrated off-time modulation (OTM) control loop, which enables the device to operate in hysteretic mode when switching frequencies are below 300kHz. At higher frequencies, the device will switch to a regulated operating mode. This ensures that the output voltage remains constant over a wide range of switching frequencies and input voltages.Conclusion
The SP7651ER-L is a versatile and efficient DC-DC synchronous switching regulator suitable for a wide range of power supply applications. It offers high switching frequency, wide input/output voltage range, and integrated features that enable it to operation in both hysteretic and regulated modes. It can be used in buck (step-down), boost (step-up), and SEPIC (single-ended primary inductance converter) topologies.The specific data is subject to PDF, and the above content is for reference
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