Analog Devices Inc./Maxim Integrated MAX8510ETA30+T

Overview

MAX8510ETA30+T from Maxim Integrated is a 3.0V fixed-output, ultra-low-noise, low-dropout linear regulator delivering up to 120mA output current with 120mV dropout at full load, 11μVRMS output noise (100Hz–100kHz), and 78dB PSRR at 1kHz. It employs a P-channel MOSFET pass transistor, achieves 40μA ground current, and operates from 2V to 6V input - ideal for powering RF sections and precision analog circuitry in portable battery-powered devices.

For engineers reviewing the MAX8510ETA30+T datasheet, MAX8510ETA30+T pinout, MAX8510ETA30+T application, or MAX8510ETA30+T equivalent, key selection criteria include its guaranteed 3.0V ±1% accuracy over temperature, stability with only 1μF ceramic output capacitance, shutdown current <1μA, and TDFN-EP (2mm × 2mm) package optimized for space-constrained PCB layouts.

Technical Context

The MAX8510ETA30+T uses an integrated 1.225V bandgap reference and error amplifier to regulate output against line/load variations, with feedback internally divided to set the 3.0V output. Its P-channel MOSFET pass device (typ. R_DS(ON) = 1Ω) eliminates base-drive current, enabling ultra-low quiescent current across load and dropout conditions.

It features dedicated BP (bypass) pin for external 10nF capacitor connection to OUT, enabling ultra-low noise performance via active noise cancellation architecture. Shutdown logic disables reference, error amp, and gate drive, reducing supply current to <1μA while placing OUT in high-impedance state.

Key Specifications

Pinout & Package

MAX8510ETA30+T is housed in an 8-pin TDFN-EP package (2mm × 2mm × 0.8mm) with exposed pad (EP) internally connected to GND. The EP must be soldered to a large PCB ground plane for optimal thermal performance (θ_JA = 83.9°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6210B302MR-G and ADP125ARHZ-3.0-R7, the MAX8510ETA30+T uniquely delivers 3.0V regulation with industry-leading 11μV_RMS noise in a 2mm × 2mm footprint - making it irreplaceable in noise-sensitive RF and precision analog subsystems despite its 120mA limit.

Availability

MAX8510ETA30+T is available at Aetrix Electronics and suitable for cellular front-end power, portable audio codec supply, digital camera image sensor bias, and IoT edge node microcontroller core rail applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAX8510ETA30+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 MAX8510 series belongs to Maxim's ultra-low-noise LDO portfolio, designed specifically for powering noise-sensitive RF, audio, and imaging circuits in space-constrained, battery-operated portable electronics.

FAQ

What is the output voltage tolerance of the MAX8510ETA30+T over temperature?

The MAX8510ETA30+T guarantees ±3% output voltage accuracy over the full operating temperature range of -40°C to +85°C. At +25°C, the tolerance tightens to ±1%, and load regulation contributes ≤0.003%/mA deviation. This ensures reliable 3.0V operation for 3V-tolerant microcontrollers and analog ICs across environmental extremes without external trimming.

Does the MAX8510ETA30+T require an external bypass capacitor, and if so, what value?

Yes, the MAX8510ETA30+T requires a 10nF capacitor between the BP pin and OUT to achieve its specified 11μV_RMS output noise. This capacitor is essential for the internal noise-bypass architecture - omitting it degrades noise performance to ~230μV_RMS. Values below 1nF or above 100nF are not recommended per the datasheet, as they reduce noise suppression effectiveness.

Can the MAX8510ETA30+T be used with ceramic output capacitors smaller than 1μF?

No - the MAX8510ETA30+T is guaranteed stable only with ≥1μF ceramic output capacitance (X7R or X5R dielectric). Using smaller values risks oscillation due to insufficient phase margin. The 1μF requirement applies across all load conditions and temperatures, and is a key differentiator from older LDOs needing larger or specialized capacitors.

What is the thermal performance of the MAX8510ETA30+T in its TDFN package?

The MAX8510ETA30+T in the 8-pin TDFN-EP package has a junction-to-ambient thermal resistance (θ_JA) of 83.9°C/W when mounted on a standard 4-layer PCB with the EP soldered to a large ground plane. Its junction-to-case (θ_JC) is 37°C/W, enabling continuous 120mA operation at ambient temperatures up to +70°C with proper layout - critical for compact handheld devices.

How does the shutdown functionality of the MAX8510ETA30+T behave during power-down sequences?

When SHDN is pulled low, the MAX8510ETA30+T disables its bandgap reference, error amplifier, and gate drive, dropping supply current to <1μA and placing the OUT pin in high-impedance state within 300µs. This controlled exit prevents backfeeding and allows safe sequencing with other rails - essential for multi-rail systems like smartphones and medical sensors using precise power-up/down timing.