Analog Devices Inc./Maxim Integrated MAX8862RCSE

Overview

MAX8862RCSE from Maxim Integrated is a low-cost, low-dropout dual linear voltage regulator in a 16-pin narrow SO package, delivering 250mA (OUT1) and 100mA (OUT2) with 160mV dropout at 200mA load. It features independent shutdown, power-good indicator (PWROK1), reverse-battery protection, and thermal shutdown - optimized for radio and microcontroller power in digital cordless and PCS phones.

For engineers reviewing the MAX8862RCSE datasheet, MAX8862RCSE pinout, MAX8862RCSE application, or MAX8862RCSE equivalent, this page provides verified technical context, Dual Mode™ fixed/adjustable output configuration (2.85V preset), real-world noise performance (211µVRMS OUT2, 10Hz–1MHz), and validated alternative options for portable power management designs.

Technical Context

The MAX8862RCSE integrates two independent P-channel MOSFET-based LDO regulators: OUT1 (250mA, optimized for transient response) and OUT2 (100mA, low-noise wideband output). Each uses a 1.25V internal bandgap reference and supports either factory-preset output (2.85V for suffix R) or adjustable output (2V–11V) via external resistive feedback on SET1/SET2.

Dual Mode™ operation selects feedback path based on SETx voltage (<40mV = internal divider; >40mV = external resistor network). PWROK1 is an open-drain power-good signal asserting low when OUT1 falls 4% below nominal or SET1 drops below 1.2V. REF2 provides a buffered 1.25V reference (±2.5mV over temp) for secondary regulation or external use.

Key Specifications

Pinout & Package

The MAX8862RCSE is housed in a 16-pin narrow SOIC package (5.0mm × 8.75mm, 1.27mm pitch) with four dedicated GND pins (4, 5, 12, 13) acting as thermal vias to PCB ground plane for enhanced heat dissipation (θ_JB = 50°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS767D318PWP and ADP3338-ACBZ-2.85-R7, the MAX8862RCSE uniquely combines factory-trimmed 2.85V output, integrated power-good, reverse-battery tolerance, and dual independent shutdown - making it irreplaceable in space-constrained, battery-reversal-prone portable comms designs requiring both high-current and low-noise rails.

Availability

MAX8862RCSE is available at Aetrix Electronics and suitable for cellular phone baseband power, PCS handset RF supply, modem power management, and hand-held instrument core logic requiring stable component supply across industrial temperature ranges (–40°C to +85°C).

Supply support for MAX8862RCSE 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 MAX8862RCSE belongs to Maxim's low-dropout linear regulator product line, designed specifically for battery-powered portable electronics requiring dual independent rails, ultra-low quiescent current, and robust fault protection.

FAQ

What output voltage does the MAX8862RCSE deliver?

The MAX8862RCSE delivers a factory-preset 2.85V output on OUT1 and OUT2 (suffix R). This value is trimmed to ±1.5% over temperature and load. The device also supports adjustable outputs from 2V to 11V via external resistors on SET1/SET2, enabled by its Dual Mode™ architecture. The 2.85V setting is confirmed in the Ordering Information table and Electrical Characteristics for MAX8862R.

Does the MAX8862RCSE support independent enable control for each regulator?

Yes, the MAX8862RCSE provides fully independent shutdown: SHDN1 controls the main regulator (OUT1) and PWROK1 comparator, while SHDN2 controls the secondary regulator (OUT2) and REF2 reference. Both inputs accept standard logic-level signals and reduce total quiescent current to under 1µA when asserted low. This is documented in the Pin Description and Detailed Description sections.

What is the purpose of the REF2 pin on the MAX8862RCSE?

The REF2 pin on the MAX8862RCSE provides a buffered, precision 1.25V reference (±2.5mV over temperature) derived from the internal bandgap. It is used internally for OUT2 regulation and is also available externally to drive precision analog circuitry or calibrate external components. A 0.1µF capacitor to GND is required for stability and noise reduction, as specified in the Pin Description and Applications Information.

How does the MAX8862RCSE handle reverse battery connection?

The MAX8862RCSE withstands reverse-battery conditions up to –12V on IN1 or IN2 without damage. During reversal, outputs remain at GND potential and no destructive current flows back into the supply. Reverse current paths are limited by external resistors (e.g., 20kΩ between SHDNx and INx), as detailed in Note 1 of Absolute Maximum Ratings and the Reverse-Battery Protection section.

What thermal protection features does the MAX8862RCSE include?

The MAX8862RCSE incorporates thermal shutdown that activates at +160°C junction temperature and resets at +140°C (20°C hysteresis). When triggered, it disables both pass transistors to cool the die. The device resumes operation automatically once temperature falls below the reset threshold. This behavior is guaranteed across –40°C to +85°C ambient and is validated in the Electrical Characteristics table under Thermal Shutdown Temperature.