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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-21 V |
| Switching frequency | 425-575 kHz |
| Output 1 | 1.2 V / 3 A |
| IC revision | 1.01 |
Description
The MP28256 is a synchronous rectified stepdown switch mode converter with built in internal power MOSFETs. It offers a very compact solution to achieve 3A continuous output current over a wide input supply range with excellent load and line regulation. The MP28256 has synchronous mode operation for higher efficiency over output current load range.Current mode operation provides fast transient response and eases loop stabilization. Full protection features include OCP and thermalshut down.The MP28256 requires a minimum number of readily available standard external components and is available in a space saving QFN14 (3x4mm) package.
Features
- Wide 4.5V to 21V Operating Input Range
- 0.6V internal reference with 2% accuracy
- 3A Output Current
- Low Rds(ON) Internal Power MOSFETs
- Fixed 500kHz Switching Frequency
- Frequency SYNC from 300kHz to 2MHz
- External Clock
- External Soft Start
- OCP and Thermal Shutdown
- Separate EN and SYNC pins
- Available in a QFN14 (3x4mm) Package.
Typical applications
- Cable Modems
- Set Top Boxes
- DSL Modems
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7443552280 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | 2.8 | 12.1 | 4.8 | 11 | 10.6 | 46 | WE-PERM |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7443552280 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples |
|---|