Analog Devices Inc./Maxim Integrated MAX1976ETT150-C0Y

Overview

MAX1976ETT150-C0Y from Maxim Integrated is a low-dropout linear regulator delivering 300mA continuous output current with ±0.5% output voltage accuracy at 1.50V, 100mV dropout at full load, and a 70ms active-low open-drain RESET flag. It operates from 1.62V to 3.6V input and integrates thermal-overload and short-circuit protection. It serves as a precision power supply for core logic rails in portable battery-powered systems.

For engineers reviewing the MAX1976ETT150-C0Y datasheet, MAX1976ETT150-C0Y pinout, MAX1976ETT150-C0Y application, or MAX1976ETT150-C0Y equivalent, key selection criteria include guaranteed 300mA load capability under 1.62V minimum input, 70ms reset delay timing, TDFN-6 package thermal performance, and ±0.5% initial output accuracy over temperature and load.

Technical Context

The MAX1976ETT150-C0Y uses an internal P-channel MOSFET pass transistor (R_DS(ON) = 0.33Ω) enabling low quiescent current independent of load and dropout voltage. Its error amplifier compares a trimmed bandgap reference against a resistive feedback network to regulate the 1.50V output.

RESET functionality is implemented via a dedicated comparator monitoring V_OUT, asserting low when output falls below 82.5% of nominal and holding for ≥70ms after regulation is achieved. Shutdown is logic-controlled via active-low SHDN, reducing supply current to <1µA.

Key Specifications

Pinout & Package

MAX1976ETT150-C0Y is housed in a 6-pin 3mm × 3mm thin DFN (TDFN) package with exposed paddle (EP), rated for 1.951W max power dissipation at +70°C ambient. The EP must be soldered to a large ground plane for thermal management.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Compared with TPS7A0515PDBVR and MCP1825-1502E/DB, MAX1976ETT150-C0Y uniquely combines 1.62V minimum input, 100mV dropout, ±0.5% accuracy, and integrated 70ms RESET - making it optimal for space-constrained, battery-critical 1.5V rail applications where timing integrity and voltage margin are non-negotiable.

Availability

MAX1976ETT150-C0Y is available at Aetrix Electronics and suitable for notebook computers, cellular telephones, digital cameras, and PCMCIA cards requiring stable component supply with guaranteed 1.50V output accuracy and integrated power-on reset functionality.

Supply support for MAX1976ETT150-C0Y 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 solutions for industrial, communications, and consumer markets.

The MAX1963/MAX1976 product line was designed specifically for ultra-low-input-voltage, high-accuracy LDO regulation in portable battery-powered equipment - emphasizing minimal dropout, tight output tolerance, and integrated supervisory functions.

FAQ

What is the exact output voltage of the MAX1976ETT150-C0Y?

The MAX1976ETT150-C0Y delivers a factory-trimmed fixed output voltage of 1.50V with ±0.5% initial accuracy across temperature, line, and load conditions. This value is confirmed in the Electrical Characteristics table of the official Maxim datasheet (Rev 2, 5/07), where V_OUT is specified at 1.50V nominal with min/max bounds derived from the ±0.5% tolerance. No external resistors are required or supported.

Does the MAX1976ETT150-C0Y require external capacitors, and what values are recommended?

Yes, the MAX1976ETT150-C0Y requires two external ceramic capacitors: a 1µF capacitor between IN and GND, and a 4.7µF low-ESR (≤30mΩ) ceramic capacitor between OUT and GND. These values are specified in the Applications Information section of the datasheet to ensure stability, transient response, and PSRR performance across the full operating temperature range and up to 300mA load.

What is the function and timing behavior of the RESET pin on the MAX1976ETT150-C0Y?

The RESET pin on the MAX1976ETT150-C0Y is an open-drain, active-low output that remains asserted (low) for at least 70ms after V_OUT reaches regulation. It deasserts immediately if V_OUT falls below 82.5% of nominal (1.2375V) or during SHDN activation. This behavior is explicitly defined in the RESET OUTPUT section of the datasheet and distinguishes MAX1976ETT150-C0Y from the MAX1963 variant (2.2ms delay).

Can the MAX1976ETT150-C0Y operate from a single-cell Li-ion battery throughout its full discharge curve?

Yes, the MAX1976ETT150-C0Y supports input voltages from 1.62V to 3.6V, enabling operation across the full useful discharge range of a single-cell Li-ion battery (typically 4.2V down to ~2.8V). Its 100mV dropout at 300mA allows regulation to continue until the battery reaches ~1.60V, extending usable runtime beyond many competing LDOs with higher dropout or minimum input requirements.

What package type and thermal characteristics apply to the MAX1976ETT150-C0Y?

The MAX1976ETT150-C0Y uses a 6-pin 3mm × 3mm thin DFN (TDFN) package with exposed paddle (PKG CODE T633-2). Its maximum power dissipation is 1951mW at +70°C ambient, with thermal shutdown activating at +165°C junction temperature. The exposed paddle must be soldered to a large PCB ground plane to achieve rated thermal performance, as documented in the Package Information and Thermal Protection sections of the datasheet.