Analog Devices Inc./Maxim Integrated MAX8530EBTP2+T

Overview

MAX8530EBTP2+T from Maxim Integrated is a dual low-dropout linear regulator IC with integrated microprocessor reset circuit, delivering 2.5V/1.8V outputs at up to 200mA (OUT1) and 150mA (OUT2) from a 2.5V–6.5V input. It features 100mV typical dropout at 100mA, 130µA quiescent current, and open-drain active-low RESET with 100ms minimum timeout-designed for space-constrained, battery-powered baseband and core voltage regulation in portable electronics.

For engineers reviewing the MAX8530EBTP2+T datasheet, MAX8530EBTP2+T pinout, MAX8530EBTP2+T application, or MAX8530EBTP2+T equivalent, key selection criteria include guaranteed dual-output current capability, UCSP package footprint (1.16 × 1.57 mm), reset threshold accuracy (87% of OUT1), thermal shutdown behavior (160°C trip), and lead-free QFN-6 exposed-pad compatibility.

Technical Context

The MAX8530EBTP2+T integrates two independent LDOs with P-channel MOSFET pass transistors, enabling low dropout proportional to load current and eliminating base-drive losses. Its internal 1.25V bandgap reference feeds error amplifiers that regulate OUT1 and OUT2 via internal resistor dividers-no external feedback required for fixed-output variants like this part (VOUT1 = 2.5V, VOUT2 = 1.8V).

The dedicated RESET block continuously monitors OUT1 voltage, asserting an open-drain low signal when OUT1 falls below 87% of nominal (e.g., <2.175V for 2.5V output), with 100ms minimum timeout after power-up. Shutdown is controlled by a single logic-input (SHDN), reducing supply current to <1µA while disabling both regulators and RESET.

Key Specifications

Pinout & Package

MAX8530EBTP2+T is supplied in a RoHS-compliant 6-pin thin QFN package with exposed thermal pad (3mm × 3mm × 0.8mm), designated "TT" in Maxim's ordering nomenclature. The exposed pad must be soldered to PCB ground for thermal and electrical performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-LDO-with-reset applications.

Compared with MAX8530ETTK2+T, the MAX8530EBTP2+T offers identical functionality in the same QFN-6 package but targets 2.5V core logic instead of 2.8V-making it optimal for lower-voltage, longer-battery-life portable designs. Versus TPS70245PWPR, it trades off some PSRR for 27% lower quiescent current and 75% smaller PCB area.

Availability

MAX8530EBTP2+T is available at Aetrix Electronics and suitable for cellular handsets, PDAs, wireless LAN cards, and digital cameras requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAX8530EBTP2+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 power management, analog, and mixed-signal ICs for portable, industrial, and communications applications.

The MAX8530/MAX8531 product line delivers ultra-compact dual-LDO solutions with integrated reset or low-noise features specifically for battery-powered handheld devices where board space and energy efficiency are critical.

FAQ

What output voltages does the MAX8530EBTP2+T provide?

The MAX8530EBTP2+T provides factory-set output voltages of 2.5V on OUT1 and 1.8V on OUT2. These values are trimmed during production and require no external resistors. The "P2" in the part number corresponds to the 2.5V/1.8V combination per Maxim's Output Voltage Selector Guide. Both outputs maintain regulation across their full rated current ranges and temperature specification (-40°C to +85°C).

Does the MAX8530EBTP2+T include a reset function, and how does it operate?

Yes, the MAX8530EBTP2+T includes a microprocessor reset function. It asserts an open-drain, active-low RESET signal when OUT1 drops below 87% of its nominal value (e.g., <2.175V for 2.5V output). After power-up, RESET remains low for a minimum of 100ms once OUT1 reaches regulation. The RESET pin requires an external pull-up resistor to the monitored domain (e.g., VCORE) and is asserted during shutdown. This eliminates the need for discrete reset ICs in portable designs.

What package type and dimensions does the MAX8530EBTP2+T use?

The MAX8530EBTP2+T uses a 6-pin thin QFN package with exposed thermal pad, measuring 3.0mm × 3.0mm × 0.8mm (JEDEC MO-229 WEEA compliant). The "TT" in the part number denotes this QFN variant, and the "+T" suffix indicates lead-free, tape-and-reel packaging. The exposed pad must be soldered to a PCB ground plane to ensure proper thermal performance and electrical stability.

What is the maximum input voltage and dropout performance of the MAX8530EBTP2+T?

The MAX8530EBTP2+T operates from an input voltage range of 2.5V to 6.5V. Its dropout voltage is specified at 100mV typical at 100mA load for both outputs-meaning it maintains regulation with VIN as low as VOUT + 0.1V. For example, with 2.5V OUT1, regulation holds down to VIN = 2.6V. This low dropout extends usable battery life in single-cell Li-ion applications where voltage sags near end-of-discharge.

How does the shutdown feature work on the MAX8530EBTP2+T?

The MAX8530EBTP2+T features a logic-controlled SHDN pin (Pin 5) that disables both LDOs and the RESET function when driven low. In shutdown mode, total supply current drops to less than 1µA, making it suitable for deep-sleep states in portable devices. For normal operation, SHDN should be tied to IN or a logic-high voltage. The SHDN input has nanoscale bias current (<1nA), minimizing leakage impact on high-impedance control nodes.