Analog Devices Inc./Maxim Integrated MAXM15063AMB+T

Overview

The MAXM15063AMB+T from Maxim Integrated is a fixed 5V-output, synchronous step-down DC-DC power module with integrated controller, MOSFETs, compensation, and inductor. It operates from 4.5V to 60V input, delivers up to 300mA output current, features ±1.5% feedback accuracy, 4.1ms soft-start, and open-drain power-good (RESET) output. It is used in industrial sensors, 4–20mA loop-powered devices, and USB Type-C loads where compact, robust, plug-and-play regulation is required.

For engineers reviewing the MAXM15063AMB+T datasheet, MAXM15063AMB+T pinout, MAXM15063AMB+T application, or MAXM15063AMB+T equivalent, key selection criteria include its 5V fixed output, 4.5–60V wide input range, 300mA load capability, uSLIC™ package footprint, and integrated RESET signaling for system power sequencing and fault monitoring.

Technical Context

The MAXM15063AMB+T employs peak-current-mode control architecture for stable transient response and inherent cycle-by-cycle current limiting. Its internal soft-start prevents input inrush, while programmable EN/UVLO enables precise input voltage turn-on thresholds - critical for high-voltage industrial and battery-powered systems.

It integrates an internal LDO (VCC) that supplies 4.75–5.25V at up to 50mA, powers internal circuitry, and supports external biasing. The device operates in either PWM (fixed-frequency) or PFM (light-load efficiency) mode via the MODE pin, and includes hiccup overcurrent protection, thermal shutdown at 166°C, and CISPR22 Class B EMI compliance.

Key Specifications

Pinout & Package

Package: 10-pin uSLIC™ (2.6mm × 3mm × 1.5mm), low-profile surface-mount module with exposed thermal pad (GND-connected). Land pattern defined by Maxim's outline 21-100094 and land pattern number 90-100027.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar step-down power module applications.

Compared with MAXM15062AMB+T and MAXM15064AMB+T, the MAXM15063AMB+T provides a drop-in 5V solution with zero external components for feedback, enabling fastest time-to-market for 5V-centric applications like USB peripherals and industrial I/O modules.

Availability

MAXM15063AMB+T is available at Aetrix Electronics and suitable for industrial sensors and encoders, 4–20mA current-loop powered sensors, and USB Type-C powered loads requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for MAXM15063AMB+T 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

Maxim Integrated (now part of Analog Devices) designs high-performance analog, mixed-signal, and power management ICs for industrial, automotive, communications, and computing markets.

The Himalaya uSLIC™ power module product line targets space-constrained, high-reliability applications requiring simplified power design - delivering fully integrated, tested, and thermally optimized DC-DC solutions in ultra-small packages.

FAQ

What is the output voltage tolerance of the MAXM15063AMB+T?

The MAXM15063AMB+T has a fixed 5.00V output with ±1.5% regulation accuracy over line, load, and temperature. This means the output remains within 4.925V to 5.075V under all specified operating conditions, ensuring compatibility with 5V-tolerant logic and USB specifications.

Does the MAXM15063AMB+T require external feedback resistors?

No. The MAXM15063AMB+T is a fixed 5V-output module; its FB pin connects directly to the OUT pin internally. Unlike adjustable variants such as the MAXM15064AMB+T, it needs no external resistor divider - reducing component count and layout complexity.

Can the MAXM15063AMB+T operate with a prebiased output?

Yes. The MAXM15063AMB+T supports prebias startup, allowing safe turn-on when the output rail is already charged (e.g., from another supply or hold-up capacitor). This feature prevents reverse current flow and ensures controlled ramp-up, verified in typical application waveforms (toc53, toc54, toc59, toc60).

What is the thermal performance of the MAXM15063AMB+T on a standard PCB?

On a four-layer evaluation board, the MAXM15063AMB+T has a junction-to-ambient thermal resistance (θJA) of 41.56°C/W. At 300mA load and 24V input, typical power dissipation is ~150mW, resulting in ~6.2°C junction rise above ambient - well within its −40°C to +125°C operating range.

How does the RESET pin function on the MAXM15063AMB+T?

The RESET pin on the MAXM15063AMB+T is an open-drain output that goes low when the FB voltage falls below 92% of its nominal value (i.e., <4.6V for 5V output), indicating undervoltage. It returns to high-impedance 2ms after FB rises above 95.5% (≥4.775V), providing clean power-good signaling for microcontroller reset sequencing.