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Monolithic Power Systems MPQ2459
0.5A, 55V, 480kHz, Step-Down Converter in a TSOT23-6 Package AEC-Q100 Qualified
Overview
| Topology | Buck Converter |
| Input voltage | 7-55 V |
| Switching frequency | 360-600 kHz |
| Output 1 | 5 V / 0.5 A |
| IC revision | 1.1 |
Description
The MPQ2459 is a monolithic, step-down, switch-mode converter with a built-in power MOSFET. It achieves a 0.5A peak output current over a wide input-supply range with excellent load and line regulation. Current mode operation provides a fast transient response and eases loop stabilization. Fault protections include cyclebycycle current limiting and thermal shutdown.
The MPQ2459 requires a minimal number of readily-available, standard, external components. The MPQ2459 is available in a TSOT23-6 package.
Features
- Guaranteed Industrial/Automotive Temp Range Limits.
- 0.5A Peak Output Current
- 1Ω Internal Power MOSFET
- Stable with Low-ESR Ceramic Output Capacitors
- Up to 90% Efficiency
- 0.1μA Shutdown Mode
- Fixed 480kHz Frequency
- Thermal Shutdown
- Cycle-by-Cycle Over-Current Protection
- Wide 4.5V-to-55V Input Operating Range
- Output Adjustable from 0.81V to 0.95×VIN
- Available in a TSOT23-6 Package
- Available in AEC-Q100 Grade 1
Typical applications
- WLED Drivers
- Battery Chargers
- Power Meters
- Pre-Regulators for Linear Regulators
- Distributed Power Systems
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 74279206 | SPEC | 9 files | WE-CBF SMT EMI Suppression Ferrite Bead | 30 | 55 | 1000 MHz | 3000 | 0.025 | High Current |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | Z @ 100 MHz (Ω) | Zmax (Ω) | Test Condition Zmax | IR 2 (mA) | RDC max. (Ω) | Type | Samples |
|---|