Analog Devices Inc./Maxim Integrated MAX8530EBT2P

Overview

MAX8530EBT2P from Maxim Integrated is a dual low-dropout linear regulator with integrated microprocessor reset circuit, designed for space-constrained battery-powered systems. It delivers 200mA from OUT1 and 150mA from OUT2, features 100mV typical dropout at 100mA load, 130µA quiescent current, and an open-drain active-low RESET output triggered when OUT1 falls below 87% of nominal voltage - used in cellular phones, PDAs, and digital cameras.

For engineers reviewing the MAX8530EBT2P datasheet, MAX8530EBT2P pinout, MAX8530EBT2P application, or MAX8530EBT2P equivalent, key selection criteria include guaranteed dual-output current capability, reset timeout ≥100ms, UCSP package footprint (1.16 × 1.57 mm), thermal shutdown at 160°C, and compatibility with 2.5V–6.5V input rails.

Technical Context

The MAX8530EBT2P integrates two independent LDOs with P-channel MOSFET pass transistors, enabling ultra-low quiescent current (130µA) independent of load or dropout condition. Its internal 1.25V bandgap reference and error amplifiers regulate outputs via internal feedback dividers, supporting fixed output voltages between 1.5V and 3.3V in 50mV steps.

The device implements a dedicated reset monitor on OUT1 only, asserting an open-drain active-low signal with minimum 100ms timeout after undervoltage detection. Shutdown control is logic-driven (SHDN pin), reducing supply current to <1µA, and thermal protection disables outputs above 160°C with 10°C hysteresis.

Key Specifications

Pinout & Package

MAX8530EBT2P is packaged in a 6-bump UCSP (1.16 × 1.57 × 0.6 mm, 3 × 2 grid), optimized for ultra-compact portable designs. The UCSP uses solder bumps instead of leads and requires controlled reflow profile per Maxim's UCSP guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX8530ETTK2, the MAX8530EBT2P offers superior space efficiency but lower thermal headroom; versus TPS70245PWPR, it provides smaller footprint and integrated reset, though with lower maximum OUT2 current and vendor-specific feature set.

Availability

MAX8530EBT2P is available at Aetrix Electronics and suitable for cellular phones, digital cameras, and wireless LAN cards requiring stable component supply across high-volume production cycles.

Supply support for MAX8530EBT2P 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 analog and mixed-signal ICs for power management, interface, sensing, and RF applications.

The MAX8530 product line targets ultra-compact, low-power portable electronics, delivering dual regulated outputs with integrated system supervision in the smallest possible footprint.

FAQ

What output voltage options are available for MAX8530EBT2P?

The MAX8530EBT2P is a factory-configured variant with fixed output voltages: OUT1 = 2.8V and OUT2 = 1.8V, as indicated by the "TKG" suffix in the ordering guide. Other combinations between 1.5V and 3.3V in 50mV increments are available upon request, but MAX8530EBT2P itself delivers precisely those values without external feedback components.

Does MAX8530EBT2P require external components for basic operation?

Yes - MAX8530EBT2P requires at minimum a 2.2µF input capacitor (CIN), ≥2.2µF output capacitor on OUT1, and ≥1µF on OUT2. A pull-up resistor on the RESET pin is also mandatory for proper microprocessor reset signaling. No external components are needed for the reset threshold or timing, as those are fully integrated within MAX8530EBT2P.

How does the RESET function of MAX8530EBT2P behave during power-down?

During power-down, the RESET output of MAX8530EBT2P goes active-low when OUT1 falls below 87% of its nominal voltage. This ensures the host microprocessor remains held in reset until supply voltage drops too low for reliable operation - a critical safeguard against erratic behavior during battery depletion. The timeout is asymmetric: minimum 100ms assertion on power-up, but immediate assertion on falling OUT1.

What is the thermal performance difference between MAX8530EBT2P (UCSP) and MAX8530ETTK2 (QFN)?

MAX8530EBT2P in UCSP has a maximum power dissipation of 308mW at +70°C (derating 3.9mW/°C above), while MAX8530ETTK2 in thin QFN supports 1951mW (derating 24.4mW/°C). The QFN's exposed pad and larger copper area provide significantly better thermal conduction - making it preferable for high-current or high-ambient-temperature applications where MAX8530EBT2P may thermally limit.

Can MAX8530EBT2P be used in place of MAX8531 variants?

No - MAX8530EBT2P and MAX8531 are functionally distinct. MAX8530EBT2P includes the integrated open-drain RESET output; MAX8531 substitutes a BP (bypass) pin for ultra-low-noise operation (40µVRMS) and omits RESET. They share pinout and package options but are not interchangeable without redesigning the reset and noise-filtering circuitry around MAX8530EBT2P.