Analog Devices Inc./Maxim Integrated MAX14562ETA+T

Overview

MAX14562ETA+T from Maxim Integrated is a 36V-capable overvoltage protector with integrated 160mΩ N-channel MOSFET, preset regulated output voltage of 5.15V (typ), overvoltage lockout cutoff at 8V (typ), and thermal shutdown protection. It operates from -40°C to +85°C in mobile power-input protection applications such as smartphone USB charging circuits.

For engineers reviewing the MAX14562ETA+T datasheet, MAX14562ETA+T pinout, MAX14562ETA+T application, or MAX14562ETA+T equivalent, key selection criteria include input fault tolerance up to +36V, regulated output stability under load, soft-start timing (48µs turn-on), ACOK flag assertion behavior, and TDFN-EP thermal performance (θ_JA = 83.9°C/W).

Technical Context

The MAX14562ETA+T implements three-stage protection logic: linear tracking below V_PROV, regulated LDO mode above V_PROV, and full disconnect above V_OVLO. Its internal BiCMOS process enables precise 5.15V regulation (±300mV over temperature) and fast 1µs overvoltage turn-off.

Control is managed via active-low EN with 1.4V VIH threshold and open-drain ACOK flag asserting after 2×t_DEB (20–70ms debounce). Thermal shutdown triggers at 150°C with 20°C hysteresis, ensuring safe recovery after short-circuit events.

Key Specifications

Pinout & Package

MAX14562ETA+T is housed in an 8-pin TDFN-EP package (2mm × 2mm) with exposed pad soldered to GND for thermal and ESD performance. Pin 4 is no-connect; pins 1&2 are paralleled IN; pins 7&8 are paralleled OUT.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar overvoltage protection applications.

Compared with TPD3S014RTER and MAX14525ETA+T, the MAX14562ETA+T delivers optimized trade-offs for single-direction, medium-current (1.6A) USB input protection with precise 5.15V regulation and integrated power-good signaling-making it ideal for space-constrained mobile platforms where rail stability and sequencing matter more than reverse blocking.

Availability

MAX14562ETA+T is available at Aetrix Electronics and suitable for smartphone charging protection, USB OTG power management, and digital camera battery charger interface applications requiring stable component supply, RoHS-compliant packaging, and extended temperature support (-40°C to +85°C).

Supply support for MAX14562ETA+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.

The MAX14562ETA+T belongs to Maxim's overvoltage protection product line, designed specifically for robust, space-efficient input conditioning in portable USB-powered devices facing unpredictable adapter voltages.

FAQ

What is the maximum continuous current rating for MAX14562ETA+T?

The MAX14562ETA+T supports 1.6A continuous current through its IN/OUT path in the 8-pin TDFN-EP package. This rating is thermally limited and validated at TA = +70°C; derating applies above that ambient temperature per the 11.9mW/°C specification. The MAX14562ETA+T maintains this current capability while delivering regulated 5.15V output and enforcing overvoltage lockout at 8V.

Does MAX14562ETA+T require external components for basic operation?

Yes - the MAX14562ETA+T requires at minimum a 1µF ceramic capacitor on IN and a 10µF ceramic capacitor on OUT (per Table 1), plus an external pull-up resistor on ACOK. These components ensure ESD robustness, load transient response, and proper flag signaling. No external feedback network is needed since V_PROV is factory-trimmed to 5.15V, and the MAX14562ETA+T integrates its own pass FET and control logic.

How does the ACOK signal behave during overvoltage events?

During an overvoltage event exceeding V_OVLO (8V typ), the MAX14562ETA+T disconnects OUT from IN and deasserts ACOK (drives it high, since it is open-drain). ACOK remains deasserted until VIN drops below V_OVLO, the 2×t_DEB debounce timer expires, and soft-start completes - only then does ACOK assert low again. This behavior ensures downstream systems detect fault conditions reliably and avoid premature re-enabling.

Can MAX14562ETA+T be used with input voltages below 2.2V?

No - the MAX14562ETA+T has a specified minimum input voltage of +2.2V per its Electrical Characteristics table. Operation below this level is outside guaranteed specifications and may result in undefined behavior, including failure to regulate or assert ACOK. For sub-2.2V applications, alternative solutions such as dedicated low-VIN supervisors or LDOs should be evaluated instead of relying on the MAX14562ETA+T.

What is the purpose of the exposed pad (EP) on MAX14562ETA+T?

The exposed pad (EP) on the MAX14562ETA+T serves dual thermal and electrical functions: it must be soldered to a GND plane to lower junction-to-ambient thermal resistance (θ_JA = 83.9°C/W) and improve power dissipation during high-current or fault conditions, and it also enhances ESD robustness by providing a low-impedance path to ground. Leaving EP unconnected violates the datasheet requirement and risks thermal shutdown or ESD failure in real-world use.