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Overview
| Topology | Buck Converter |
| Input voltage | 12 V |
| Switching frequency | 200-500 kHz |
| Output 1 | 1.8 V / 25 A |
| IC revision | 1.0 |
Description
The MP2905 is a hysteretic voltage-mode control,synchronous PWM buck controller. The output voltage can be regulated from 0.6V to 0.9*VIN. Itachieves high output current over a wide input supply range from 3V-28V.
MP2905 integrates an internal LDO regulator that makes the controller function at a wide input supply.
Hysteretic voltage-mode control provides fast transient response without additional loop compensation.
An adjustable soft-start prevents inrush current at turn-on. The device senses high-side switch voltage drop for hiccup current limit and shortcurrent protection. The frequency is adjustable from 200kHz to 500kHz.
The MP2905 is available in 10-pin MSOP package, provides a very compact system solution with minimal reliance on external components.
Features
- Wide 3V to 28V Operating Input Range
- Output Adjustable from 0.6V to 0.9*Vin
- Switching frequency from 200kHz to 500kHz
- Programmable Soft-Start
- Hiccup current limit
- Lossless peak current sensing
- MSOP-10 package
Typical applications
- Graphic-Card Power Supplies
- Motherboard Power Supplies
- Set-Top Boxes
- AGP and PCI-Express Power Supplies
- Point-of-Load Power Supplies
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744355182 | 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 | 0.82 | 44.5 | 15 | 35 | 0.9 | 72 | WE-PERM |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 744355182 | 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 |
|---|