Monolithic Power Systems Inc. MPL-AT2010-1R5

Overview

MPL-AT2010-1R5 from Monolithic Power Systems is a low-profile molded power inductor with 1.5 µH nominal inductance (±20%), 85 mΩ typical DCR, 2.4 A rated current (ΔT = 40 K), 3.2 A saturation current at both 25°C and 100°C, and 58 MHz typical self-resonant frequency - designed for high-frequency DC-DC converters in space-constrained portable electronics.

For engineers reviewing the MPL-AT2010-1R5 datasheet, MPL-AT2010-1R5 pinout (two-terminal SMT device), MPL-AT2010-1R5 application in compact SMPS, or MPL-AT2010-1R5 equivalent for low-noise 1.5 µH filtering, this page delivers verified electrical specs, thermal performance context, package dimensions, and validated alternatives for battery-powered IoT and wearable power stages.

Technical Context

This molded inductor uses soft-saturation ferrite core material enabling gradual inductance roll-off under DC bias, critical for stable regulation in buck converters operating above 1 MHz. Its 2.0 mm × 1.6 mm × 1.0 mm LGA-style footprint supports automated placement and thermal dissipation via copper PCB pads.

Electrical behavior is characterized at 100 kHz / 100 mA for inductance, with rated current defined by 40 K temperature rise on a standardized single-layer 30 mm × 50 mm PCB (35 µm Cu). Saturation thresholds are measured at fixed 30% inductance drop across ambient temperatures of 25°C and 100°C.

Key Specifications

Pinout & Package

Two-terminal surface-mount device with no internal pins; terminals are exposed copper pads on bottom face aligned to 2.0 mm × 1.6 mm land pattern. Molded epoxy encapsulation provides mechanical robustness and magnetic shielding.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-profile 1.5 µH power inductor applications.

Compared with VLS2010ET-1R5M, MPL-AT2010-1R5 offers higher ISAT and lower typical DCR; versus XAL2010-152MEC, it trades 10 mΩ lower DCR for tighter thermal rise control and MPS-specific soft-saturation tuning - making it optimal for noise-sensitive wearables where predictable inductance decay matters more than absolute efficiency.

Availability

MPL-AT2010-1R5 is available at Aetrix Electronics and suitable for battery-powered wearables, high-frequency IoT SMPS, and portable medical sensors requiring stable component supply with guaranteed long-term manufacturability and RoHS/REACH compliance.

Supply support for MPL-AT2010-1R5 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs and passive components for power conversion, with design centers in the US, China, and Taiwan.

The MPL-AT series is engineered specifically for ultra-compact, high-efficiency DC-DC solutions in consumer and portable electronics - emphasizing low profile, thermal resilience, and acoustic noise suppression.

FAQ

What is the recommended PCB land pattern for MPL-AT2010-1R5?

The official land pattern specifies 1.90 mm × 0.70 mm solder pads with 0.50 mm spacing between pad edges, matching the 2.0 mm × 1.6 mm body outline. Thermal relief vias under each pad are recommended for improved heat dissipation in high-current layouts.

Does MPL-AT2010-1R5 have polarity or winding direction sensitivity?

Yes - the dot marking indicates the start of winding. While not electrically polarized, consistent orientation improves magnetic field containment in tightly spaced layouts and reduces coupling to adjacent signal traces, especially in multi-inductor PMIC designs.

How does the 3.2 A saturation current at 100°C compare to typical industry benchmarks?

At 100°C ambient, most 2.0×1.6 mm molded inductors degrade ISAT by 15–25% versus 25°C; MPL-AT2010-1R5 maintains identical 3.2 A ISAT due to optimized core material and thermal path design - confirmed by MPS characterization curves on page 2 of Rev. 1.2.

Can MPL-AT2010-1R5 be used in automotive infotainment power supplies?

It meets temperature and RoHS requirements for cabin applications (−40°C to +125°C), but lacks AEC-Q200 qualification. For non-safety-critical infotainment subsystems with controlled thermal environments, it is widely deployed - however, qualified alternatives like TDK VLS2010ET-1R5M should be selected for full automotive compliance.

Is the 58 MHz self-resonant frequency sufficient for 4 MHz GaN-based converters?

Yes - at 4 MHz, the inductor operates well below 10% of its 58 MHz SRF, ensuring minimal capacitive impedance contribution and stable inductive reactance. Impedance vs. frequency data (page 2) confirms >95% inductive behavior up to 10 MHz.

What is the shelf life and moisture sensitivity level (MSL) of MPL-AT2010-1R5?

MPL-AT2010-1R5 is packaged in dry nitrogen tape-and-reel with MSL 1 rating per J-STD-020. Unopened reels have a shelf life of 12 months at <40°C and <50% RH; no bake preconditioning is required prior to reflow.