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Overview
| Topology | Buck Converter |
| Input voltage | 2.7-5.5 V |
| Switching frequency | 1200-1800 kHz |
| Output 1 | 3.3 V |
| Output 2 | 1.5 V |
| Output 3 | 2.5 V |
| Output 4 | 1.2 V |
| Output 5 | 1.8 V |
| IC revision | 0.9 |
Description
The MP28127 is an internally compensated 1.5MHz fixed frequency PWM synchronous step-down regulator. MP28127 operates from a 2.7V to 5.5V input and generates an output voltage as low as 0.8V.
The MP28127 integrates a high-side switch and a synchronous rectifier for high efficiency without an external Schottky diode. With peak current mode control and internal compensation, the MP28127 based solution delivers a very compact footprint with a minimum component count.
The MP28127 is available in a small 3mm x 3mm 10-lead QFN package.
Features
- 1.25A Output Current
- Input Operation Range: 2.7V to 5.5V
- All Ceramic Capacitor Design
- 1.5MHz Fixed Switching Frequency
- Adjustable Output from 0.8V to 0.9xVIN
- Internal Soft-Start
- Frequency Synchronization Input
- Power Good Output
- Thermal Shutdown
- Cycle-by-Cycle Current Limiting
- Hiccup Short Circuit Protection
- 3mm x 3mm 10-lead QFN Package
Typical applications
- Network and Telecom Equipment
- μP/ASIC/DSP/FPGA Core and I/O Supplies
- Point of Load Regulators
- Printers and LCD TVs
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744310055 | SPEC | 8 files | WE-HCI SMT Flat Wire High Current Inductor | 0.52 | 19.2 | 8.5 | 20 | 3.7 | 140 | Superflux | ||
| 744310095 | SPEC | 8 files | WE-HCI SMT Flat Wire High Current Inductor | 0.95 | 14.4 | 5 | 13 | 6.2 | 90 | Superflux |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples |
|---|