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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-16 V |
| Switching frequency | 440-580 kHz |
| Output 1 | 3.3 V / 2 A |
| IC revision | 1.04 |
Description
The MP1494 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a verycompact solution to achieve a 2A continuous output current with excellent load and line regulation over a wide input supply range. The MP1494 has synchronous mode operation for higher efficiency over the output current load range.
Current-mode operation provides fast transient response and eases loop stabilization.
Full protection features include over-current protection and thermal shut down.
The MP1494 requires a minimal number of readily-available standard external components, and is available in a space-saving 8-pin TSOT23 package.
Features
- Wide 4.5V-to-16V Operating Input Range
- 100mΩ/40mΩ Low RDS(ON) Internal Power MOSFETs
- High-Efficiency Synchronous Mode Operation
- Fixed 500kHz Switching Frequency
- Synchronizes from a 200kHz-to-2MHz External Clock
- AAM Power-Save Mode
- Internal Soft-Start
- OCP Protection and Hiccup
- Thermal Shutdown
- Output Adjustable from 0.8V
- Available in an 8-pin TSOT-23 Package
Typical applications
- Distributed Power Systems
- Flat-Panel Television and Monitors
- Notebook Systems and I/O Power
- Digital Set-Top Boxes