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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
- AGP and PCI-Express Power Supplies
- Set-Top Boxes
- 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 | 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 |
| 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 |
|---|
