Overview
| Information | 3A 300kHz Buck Regulator |
|---|---|
| # of Outputs | 1 |
| IOUT (A) | 3 |
| VIN MIN (V) | 2.5 |
| VIN MAX (V) | 28 |
| IQ (µA) | 1500 |
| VOUT MIN (V) | 0.8 |
| VOUT MAX (V) | 27 |
| Frequency (kHz) | 300 |
| Accuracy (%) | 1.0 |
| Efficiency (%) | 95 |
| Package | DFN-26 |
| X x Y Package Dimension (mm) | 7x4 |
| Control Mode | Voltage Mode PWM |
| Special Features | Enable, Power Sequencing, Synchronous Rectification, Thermal Shutdown, UVLO Adjustable, Soft Start Adjustable |
| Operating Temperature (°C) | -40 to 125 |
The SP7650 is a synchronous step-down switching regulator optimized for high efficiency. The part is designed to be especially attractive for dual supply, 12V or 24V distributed power systems stepped-down with 5V used to power the controller. This lower VCC voltage minimizes power dissipation in the part and is used to drive the top switch. The SP7650 is designed to provide a fully integrated buck regulator solution using a fixed 300kHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown and output short circuit protection. The SP7650 is available in the space saving DFN package.
- 2.5V to 28V step-down achieved using dual input
- Output voltage down to 0.8V
- 3A output capability
- Built in low RDSON power switches (40 mΩ typ)
- Highly integrated design, minimal components
- 300 kHz fixed frequency operation
- UVLO detects both VCC and VIN
- Over temperature protection
- Short circuit protection with auto restart
- Wide BW Amp allows type II or III compensation
- Programmable soft-start
- Fast transient response
- High efficiency: greater than 95% possible
- Nonsynchronous start up into a pre-charged output
- Small 7mm x 4mm DFN package
Documentation & Design Tools
Quality & RoHS
Parts & Purchasing
| Part Number | Pkg Code | Min Temp | Max Temp | Status | Suggested Replacement | Buy Now | Order Samples | PDN |
|---|---|---|---|---|---|---|---|---|
| SP7650BER-L | DFN26 7x4 | -40 | 85 | EOL | ||||
| SP7650ER | DFN26 7x4 | -40 | 85 | OBS | ||||
| SP7650ER-L | DFN26 7x4 | -40 | 85 | OBS | SP7650ER-L/TR | |||
| SP7650ER-L/TR | DFN26 7x4 | -40 | 85 | Active | Order | |||
| SP7650ER/TR | DFN26 7x4 | -40 | 85 | OBS |
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
Packaging
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