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Monolithic Power Systems MPQ4559-AEC1
Industrial Grade, 1.5A, 2MHz, 55V Industrial Grade, 1.5A, 2MHz, 55V AEC-Q100 Qualified
Overview
| Topology | Buck Converter |
| Input voltage | 3.8-55 V |
| Switching frequency | 2000 kHz |
| Output 1 | 3.3 V / 1.2 A |
| IC revision | 1.01 |
Description
The MPQ4559 is a high frequency step-down switching regulator with integrated internal highside high voltage power MOSFET. It provides 1.5A output with current mode control for fast loop response and easy compensation. The wide 3.8V to 55V input range accommodates a variety of step-down applications, includingthose in automotive input environment. A 12µA shutdown mode supply current allows use in battery-powered applications. High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses. The frequency foldback helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation. By switching at 2MHz, the MPQ4559 is able to prevent EMI (Electromagnetic Interference) noise problems, such as those found in AM radio and ADSL applications.The MPQ4559 is available in small 3mm x 3mm QFN10 and SOIC8 with exposed pad packages
Features
Guaranteed Industrial Temp Range Limits
- Wide 3.8V to 55V Operating Input Range
- 250mΩ Internal Power MOSFET
- Up to 2MHz Programmable SwitchingFrequency
- 140μA Quiescent Current
- Ceramic Capacitor Stable
- Internal Soft-Start
- Up to 95% Efficiency
- Output Adjustable from 0.8V to 52V
- Available in QFN (3mm x 3mm) andSOIC8E with Exposed Pad Packages
- AEC-Q100 Qualified
Typical applications
- High Voltage Power Conversion
- Battery Powered Systems
- Automotive Systems
- Industrial Power Systems
- Distributed Power Systems
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Mount | IRP,40K(A) | RDC max.(mΩ) | Size | Version | SamplesAvailability & Sample | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SPECWE-PD SMT Power Inductor, 4.7 µH, – | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance4.7 µH | – | – | Self Resonant Frequency45 MHz | MountSMT | Performance Rated Current4.2 A | DC Resistance35 mΩ | Size7332 | VersionRobust | –Check availability | |||
 | SPECWE-TPC SMT Tiny Power Inductor, 10 µH, 3.9 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance10 µH | Rated Current3.9 A | Saturation Current4 A | Self Resonant Frequency20 MHz | MountSMT | – | DC Resistance35 mΩ | Size1038 | VersionSMT | –Check availability | |||
| SPECWE-PD SMT Power Inductor, 15 µH, 4.2 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance15 µH | Rated Current4.2 A | Saturation Current4.5 A | Self Resonant Frequency16.6 MHz | MountSMT | Performance Rated Current7 A | DC Resistance28 mΩ | Size1260 | VersionStandard | –Check availability | |||
| SPECWE-PD SMT Power Inductor, 22 µH, 3.5 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance22 µH | Rated Current3.5 A | Saturation Current3.7 A | Self Resonant Frequency13.5 MHz | MountSMT | Performance Rated Current6 A | DC Resistance36 mΩ | Size1260 | VersionStandard | –Check availability |
Availability Forecast
WE item number Packaging unitsLead time
––– weeks
| Expected Availability | Opening inventory | Quantity |
|---|---|---|
| Current Availability | – | – |
There is no forecast for this quantity request.
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