Overview
| Information | 1.5A Non Synchronous Step-Down Regulator |
|---|---|
| # of Outputs | 1 |
| IOUT (A) | 1.5 |
| VIN MIN (V) | 4.5 |
| VIN MAX (V) | 18 |
| IQ (µA) | 800 |
| VOUT MIN (V) | 0.81 |
| VOUT MAX (V) | 15 |
| Frequency (kHz) | 1400 |
| Accuracy (%) | 3.0 |
| Efficiency (%) | 92 |
| Package | SOT23-6 |
| X x Y Package Dimension (mm) | - |
| Control Mode | Current Mode PWM |
| Special Features | Enable, Over Current Protection, Thermal Shutdown, Soft Start Built-in, Internal Compensation |
| Operating Temperature (°C) | -40 to 85 |
The XRP7659 is a current-mode PWM step-down (buck) voltage regulator capable of delivering an output current up to 1.5Amps. A wide 4.5V to 18V input voltage range allows for single supply operation from industry standard 5V, 9.6V and 12V power rails.
With a 1.4MHz constant operating frequency, integrated high-side MOSFET and loop compensation, the XRP7659 reduces the overall component count and solution footprint. Current-mode control provides fast transient response and cycle-by-cycle current limit. An integrated soft-start prevents inrush current at turn-on, and in shutdown mode the supply current drops to 0.1µA.
Built-in output overvoltage (open load), over temperature, cycle-by-cycle over-current and undervoltage lockout (UVLO) protection insure safe operation under abnormal operating conditions.
The XRP7659 is a pin and function compatible device to Monolithic Power Systems MP2359 for input voltages below 18V.
The XRP7659 is offered in a RoHS compliant, "green"/halogen free 6-pin SOT23 package.
- 1.5A continuous output current
- 4.5V to 18V wide input voltage
- PWM current-mode control
- 1.4MHz constant operation
- Up to 92% efficiency
- Adjustable output voltage
- 0.81V to 15V range
- ±3% accuracy
- Enable function and soft-start
- Built-in thermal, overcurrent, UVLO and output overvoltage protection
- Pin/function (VIN<18V) compatible to MP2359
- RoHS compliant, "green"/halogen free 6-pin SOT23 package
- Distributed power architectures
- Point of Load (POL) converters
- Audio video equipment
- Medical and industrial equipment
Documentation & Design Tools
| Type | Title | Version | Date | File Size |
|---|---|---|---|---|
| Data Sheets | XRP7659 1.5A 18V 1.4MHz Non Synchronous Step-Down Regulator | 1.2.1 | February 2020 | 1 MB |
| Application Notes | AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian | April 2019 | 1.2 MB | |
| User Guides & Manuals | XRP7659 Evaluation Board Manual | 1.0.0 | August 2012 | 603.5 KB |
| Product Brochures | Power Management Brochure | R01 | November 2024 | 2.4 MB |
| Symbols & Footprints | XRP7659ISTR-F CAD File (.bxl) | September 2018 | 80.2 KB |
Quality & RoHS
Parts & Purchasing
| Part Number | Min Temp | Max Temp | Status | Suggested Replacement | PDN |
|---|---|---|---|---|---|
| XRP7659ISTR-F | -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.
Notifications
FAQs & Support
Search our list of FAQs for answers to common technical questions.
For material content, environmental, quality and reliability questions review the Quality tab or visit our Quality page.
For ordering information and general customer service visit our Contact Us page.
Submit a Technical Support Question As a New Question
The Parts & Purchasing section of the product page shows the Status of all orderable part numbers for that product. Click Show obsolete parts, to see all EOL or OBS products.
Find the product page of the part that you want to get an evaluation board for and click on Parts & Purchasing. Example:
Find the icons under Buy Now or Order Samples:
Click on the Buy Now icon and see who has stock and click on the Buy button:
Alternatively, you can click on the Order Samples
If the icons are missing, then contact Customer Support.
https://www.exar.com/quality-assurance-and-reliability/lead-free-program
