Analog Devices Inc./Maxim Integrated MAX15022ATI+

Overview

MAX15022ATI+ from Analog Devices / Maxim Integrated is a dual-output PWM step-down DC/DC regulator with two integrated LDO controller functions. The device is designed for multivoltage systems that need a 4A switching rail, a 2A switching rail, and two auxiliary linear-controller outputs from a compact 5mm x 5mm TQFN package.

As part of the MAX15022 product family, MAX15022ATI+ combines dual synchronous buck regulators, two LDO controllers, 2.5V to 5.5V input operation, adjustable 0.6V outputs, 500kHz to 4MHz switching, 180-degree out-of-phase operation, soft-start/soft-stop sequencing, tracking support, thermal shutdown, and hiccup-mode short-circuit protection. For engineers reviewing the MAX15022ATI+ datasheet, MAX15022ATI+ pinout, MAX15022ATI+ application, or MAX15022ATI+ equivalent, this device is widely used in automotive multimedia, networking equipment, telecom modules, Power-over-Ethernet IP phones, RFID reader cards, FPGA supplies, and compact multivoltage embedded power systems.

Technical Context

In multivoltage embedded systems, MAX15022ATI+ operates as a dual synchronous buck regulator with auxiliary LDO controller outputs. Regulator 1 can supply up to 4A, regulator 2 can supply up to 2A, and the LDO controllers can drive external PNP pass transistors for additional rails.

The 500kHz to 4MHz programmable switching frequency allows the designer to trade efficiency, passive size, and EMI behavior. The two switching regulators operate 180 degrees out of phase, reducing RMS input ripple current and input capacitor stress.

MAX15022ATI+ is commonly used when a compact PMIC must generate several rails with power-up sequencing, coincident or ratiometric tracking, prebiased startup support, current-limit protection, and thermal shutdown.

Key Specifications

Pinout & Package

The MAX15022ATI+ pinout includes input supply pins, switch nodes for both buck regulators, feedback and compensation pins, LDO controller pins, enable and tracking pins, soft-start/soft-stop functions, and exposed-pad ground.

For PCB design, both buck switching loops should be kept compact, LDO pass transistor loops should be thermally considered, and feedback/compensation traces should be routed away from noisy switch nodes.

Key Features

• 4A and 2A buck outputs support high-current rails.
• Two LDO controllers add auxiliary linear outputs.
• 500kHz to 4MHz switching supports size and efficiency tradeoffs.
• 180-degree out-of-phase operation reduces input ripple.
• Sequencing and tracking support controlled startup.
• Thermal shutdown and hiccup short-circuit protection improve robustness.

Applications

Equivalent & Alternatives

When evaluating a MAX15022ATI+ equivalent, engineers should compare buck output current, number of LDO controllers, switching-frequency range, package, sequencing/tracking features, and protection behavior.

Compared with MAX15021ATI+, MAX15022ATI+ should be selected when the 4A/2A buck current combination and dual LDO controller architecture match the board. MAX15022ATI+ vs TPS65262RHBT selection depends on rail count, output current, LDO integration, package, and sequencing needs.

Quality

MAX15022ATI+ should be sourced as original Analog Devices / Maxim Integrated components through traceable supply channels. Quality checks may include TQFN-EP package inspection, top-mark validation, solderability testing, buck output verification, and LDO controller function testing.

Production validation should include switching frequency, sequencing/tracking behavior, soft-start into prebiased loads, thermal performance, current-limit response, and output ripple.

Availability

MAX15022ATI+ available at Aetrix Electronics and is suitable for automotive multimedia, networking, telecom, PoE, RFID, FPGA, and compact multivoltage embedded systems.

Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics, automotive electronics, and embedded product programs. Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.

For production builds, confirming package, output-current budget, LDO pass-device requirements, lifecycle status, lead time, and sourcing continuity helps reduce procurement risk.

Manufacturer

Analog Devices is a global semiconductor manufacturer specializing in analog ICs, power management, mixed-signal products, data converters, RF solutions, sensors, and embedded signal-chain technologies for industrial, communication, automotive, healthcare, and consumer applications. Maxim Integrated power-management products are now part of the Analog Devices portfolio.

The MAX15022 product family is an Analog Devices / Maxim dual-output synchronous buck regulator series with dual LDO controllers for compact multivoltage power supplies.

FAQ

What is MAX15022ATI+ used for?

MAX15022ATI+ is used for automotive multimedia, networking equipment, telecom modules, PoE IP phones, RFID reader cards, FPGA supplies, and compact multivoltage embedded systems.

Where can I find the MAX15022ATI+ datasheet download?

The MAX15022ATI+ datasheet is available from Analog Devices and includes regulator ratings, LDO controller details, package data, pin functions, and application circuits.

What should be considered in MAX15022ATI+ pinout design?

Designers should keep both switching loops compact, route feedback and compensation nodes quietly, and design LDO pass-transistor paths for thermal stability.

How many regulator outputs does MAX15022ATI+ support?

It includes two switching buck regulators and two LDO controllers for auxiliary outputs.

What are common MAX15022ATI+ equivalent solutions?

Common candidates include MAX15021ATI+ and TPS65262RHBT depending on current, rail count, LDO controller needs, and package.