Overview
| Information | 2A 18V PFM/PWM Step-Down Regulator |
|---|---|
| # of Outputs | 1 |
| IOUT (A) | 2 |
| VIN MIN (V) | 4.5 |
| VIN MAX (V) | 18 |
| IQ (µA) | 1200 |
| VOUT MIN (V) | 0.925 |
| VOUT MAX (V) | 16 |
| Frequency (kHz) | 340 |
| Accuracy (%) | 2.0 |
| Efficiency (%) | 95 |
| Package | SOIC-8 |
| X x Y Package Dimension (mm) | - |
| Control Mode | Current Mode PWM |
| Special Features | Light Load PFM, Enable, Over Current Protection, Thermal Shutdown, Soft Start Adjustable |
| Operating Temperature (°C) | -40 to 85 |
The XRP7674 is a 2A capable synchronous current-mode PWM step-down (buck) voltage regulator with improved light current load efficiency. A wide 4.5V to 18V input voltage range allows for single supply operations from industry standard 5V and 12V power rails.
With a 340kHz constant operating frequency and integrated high and low-side 100mΩ/100mΩ MOSFETs, the XRP7674 reduces the overall component count and solution footprint. Current-mode control provides fast transient response and cycle-by-cycle OCP. An adjustable soft-start prevents inrush current at turn-on, and in shutdown mode the supply current drops to 0.1µA. At light current loads, the XRP7674 operates in Discontinuous Conduction Mode (DCM) and is complemented by a Pulse Frequency Modulation (PFM) mode to provide excellent conversion efficiency.
Built-in output overvoltage (open load), over temperature, cycle-by-cycle overcurrent, undervoltage lockout (UVLO) and hiccup mode short-circuit protection insures safe operation under abnormal operating conditions.
The XRP7674 is offered in a RoHS compliant, "green"/halogen free 8-pin SOIC package.
- 2A continuous output current
- 4.5V to 18V wide input voltage
- 0.925V to 16V adjustable output voltage
- 2% accuracy
- PWM current mode control
- 340kHz constant operations
- Up to 95% efficiency
- Light load efficiency
- Programmable soft-start and enable function
- Built-in thermal, overcurrent, UVLO and output overvoltage protections
- Pin/function upgrade to Exar XRP7664 and MPS MP1482/2305
- RoHS compliant, "green"/halogen free 8-pin SOIC package
- Distributed power architecture
- Energy Star compliant equipment
- Portable equipment
- Point of Load (POL) converter
- Audio video equipment
Documentation & Design Tools
| Type | Title | Version | Date | File Size |
|---|---|---|---|---|
| Data Sheets | XRP7674 2A 18V Synchronous PFM/PWM Step-Down Regulator | 1.0.0 | February 2013 | 1 MB |
| Application Notes | ANP-40, Current Mode Compensation | 1.0.0 | April 2013 | 712.2 KB |
| Application Notes | ANP-40, Current Mode Compensation - Supporting Spreadsheet | 1.0.0 | April 2013 | 81.6 KB |
| User Guides & Manuals | XRP7664-65-74-75 Evaluation Board Manual | 2.0.0 | August 2014 | 808.2 KB |
| Product Brochures | Power Management Brochure | October 2020 | 2.4 MB |
Parts & Purchasing
| Part Number | Pkg Code | Min Temp | Max Temp | Status | Suggested Replacement | PDN |
|---|---|---|---|---|---|---|
| XRP7674IDTR-F | NSOIC8 | -40 | 85 | OBS | XRP7664IDTR-F |
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
FAQs & Support
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