Overview
| Information | 1A Synchronous Step-Down Regulator |
|---|---|
| # of Outputs | 1 |
| IOUT (A) | 1 |
| VIN MIN (V) | 2.5 |
| VIN MAX (V) | 5.5 |
| IQ (µA) | 30 |
| VOUT MIN (V) | 0.6 |
| VOUT MAX (V) | 5 |
| Frequency (kHz) | 1500 |
| Accuracy (%) | <3.0 |
| Efficiency (%) | 97 |
| Package | SOT23-5 |
| X x Y Package Dimension (mm) | - |
| Control Mode | Current Mode PWM |
| Special Features | Light Load PFM, Enable, Over Current Protection, Synchronous Rectification, Thermal Shutdown, UVLO, 100% Duty Cycle |
| Operating Temperature (°C) | -40 to 125 |
The XRP6658 is a synchronous current mode PWM step-down (buck) converter capable of delivering up to 1Amp of current and optimized for portable battery operated operations.
Based on a current mode 1.5MHz constant frequency PWM control scheme, the XRP6658 reduces the overall component count and solution footprint as well as providing a low output voltage ripple and excellent line and load regulation. It also implements a PFM mode to improve light load efficiency as well as a 100% duty cycle LDO mode. Output voltage is adjustable as low as 0.6V with a better than 3% accuracy while a low quiescent current supports the most stringent battery operations conditions. Built-in over temperature and undervoltage lock-out protections insure safe operations under abnormal operating conditions.
The XRP6658 is offered in a RoHS compliant, “green”/halogen free 5-pin SOT23 package.
 |
- Guaranteed 1A output current
- Input voltage: 2.5V to 5.5V
- 1.5MHz PWM current mode control
- PFM mode operations at light load
- 100% duty cycle LDO mode operations
- As low as 0.6V adjustable output voltage
- Internal compensation network
- 30µA quiescent current
- Over temperature and UVLO protections
- RoHS compliant “green”/halogen free 5-pin SOT23 package
- Portable equipment
- Battery operated equipment
- Audio video equipment
- Networking and telecom equipment
Documentation & Design Tools
| Type | Title | Version | Date | File Size |
|---|---|---|---|---|
| Data Sheets | XRP6658 1A 1.5MHz PFM/PWM Synchronous Step-Down Converter | 2.0.0 | February 2020 | 1.4 MB |
| Application Notes | AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian | April 2019 | 1.2 MB | |
| User Guides & Manuals | XRP6658 Evaluation Board Manual | 2.1.0 | February 2012 | 365.4 KB |
| Product Flyers | Power Management & Interface Products for Cable, Satellite and IP STB/Home Gateway | March 2018 | 2 MB | |
| Product Flyers | 1A 1.5MHz Synchronous Step-Down Converter | September 2010 | 855.6 KB | |
| Product Brochures | Power Management Brochure | R02 | March 2025 | 6.2 MB |
| Symbols & Footprints | XRP6658ISTR-F CAD File (.bxl) | September 2018 | 82.2 KB |
Quality & RoHS
Parts & Purchasing
| Part Number | Pkg Code | Min Temp | Max Temp | Status | Buy Now | Order Samples |
|---|---|---|---|---|---|---|
| XRP6658ISTR-F | SOT-23-5 | -40 | 85 | Active | Order | |
| XRP6658EVB | Board | Active |
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
| Pkg Code | Details | Quantities | Dimensions |
|---|---|---|---|
| SOT-23-5 |
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Notifications
FAQs & Support
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