Analog Devices Inc./Maxim Integrated MAX8510EXK16

Overview

MAX8510EXK16 from Maxim Integrated is a 1.6V fixed-output, ultra-low-noise, low-dropout linear regulator featuring a P-channel MOSFET pass element, 120mV dropout at 120mA, 11µV_RMS output noise (100Hz–100kHz), and 78dB PSRR at 1kHz - designed for powering noise-sensitive analog circuitry in portable RF and audio subsystems.

For engineers reviewing the MAX8510EXK16 datasheet, MAX8510EXK16 pinout, MAX8510EXK16 application, or MAX8510EXK16 equivalent, key selection criteria include guaranteed 120mA output with ≤±3% voltage accuracy over load/temperature, SC70-5 package compatibility with space-constrained PCB layouts, and BP-capacitor–enabled noise suppression critical for ADC reference supplies and RF front-end biasing.

Technical Context

The MAX8510EXK16 employs a precision 1.225V bandgap reference and error amplifier to regulate its 1.6V output via internal feedback, with shutdown logic disabling the reference, amplifier, and gate driver to reduce supply current below 1µA. Its P-channel MOSFET pass transistor delivers 1Ω typical R_DS(ON), enabling low dropout without base-drive current penalties.

Stability is ensured with only 1µF ceramic output capacitance across all loads, while the BP pin accepts a 10nF capacitor to shunt high-frequency noise from the error amplifier's bias network - a dedicated architecture not shared by the MAX8511 (no BP) or MAX8512 (FB-adjustable).

Key Specifications

Pinout & Package

MAX8510EXK16 is housed in a RoHS-compliant 5-pin SC70-5 package (2.0mm × 1.25mm × 0.95mm), with exposed pad omitted - thermal performance relies on GND pin conduction through PCB copper.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-noise LDO applications.

Compared with the Torex XC6210B162MR-G and ADP125ARHZ-1.6-R7, the MAX8510EXK16 uniquely delivers 11µV_RMS noise via BP-capacitor architecture - making it irreplaceable for RF biasing and precision analog sensing where sub-15µV noise is mandatory.

Availability

MAX8510EXK16 is available at Aetrix Electronics and suitable for cellular handsets, Bluetooth accessories, and portable medical devices requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.

Supply support for MAX8510EXK16 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) designs precision analog and mixed-signal ICs for demanding industrial, automotive, and communications applications, with emphasis on power efficiency and signal integrity.

The MAX8510 series belongs to Maxim's ultra-low-noise LDO product line, engineered specifically for powering noise-critical RF, audio, and high-resolution data-conversion circuits in battery-operated portable equipment.

FAQ

What is the exact output voltage tolerance of the MAX8510EXK16 over temperature and load?

The MAX8510EXK16 guarantees ±3% output voltage accuracy across -40°C to +85°C ambient temperature and 100µA to 80mA load current, as specified in the Electrical Characteristics table. This tolerance holds regardless of input voltage (2V–6V) or output capacitor value (1µF ceramic), ensuring reliable operation in varying environmental and loading conditions. The MAX8510EXK16 achieves this via a trimmed 1.225V bandgap reference and laser-trimmed internal resistor divider.

Can the MAX8510EXK16 operate stably with less than 1µF output capacitance?

No - the MAX8510EXK16 requires a minimum 1µF ceramic output capacitor for guaranteed stability across all load conditions and temperatures, as validated in the "Region of Stable COUT ESR vs. Load Current" graph. Using smaller values risks oscillation or excessive load-transient overshoot. X7R or X5R dielectrics are recommended; Z5U/Y5V types may require ≥2.2µF below -10°C. The MAX8510EXK16 does not support ceramic capacitors below 0.82µF per datasheet design constraints.

Is the BP pin on the MAX8510EXK16 mandatory for operation?

The BP pin is not mandatory for basic regulation but is essential to achieve the specified 11µV_RMS output noise. Without the 10nF BP-to-OUT capacitor, noise rises to 230µV_RMS (per MAX8511/MAX8512 spec). The BP pin is shorted to OUT internally during shutdown, so no external pull-up/down is needed. For MAX8510EXK16 designs targeting RF or precision analog, the BP capacitor is a required design element - not optional.

What thermal derating applies to the MAX8510EXK16 in SC70-5 package?

In the SC70-5 package, the MAX8510EXK16 has a junction-to-ambient thermal resistance (θ_JA) of 324°C/W. At +70°C ambient, continuous power dissipation must be limited to 0.247W, derating by 3.1mW/°C above that temperature. For example, at +85°C ambient, max power drops to 0.204W. This corresponds to ~120mA at 1.72V input (120mA × 120mV dropout = 14.4mW), well within safe limits - confirming the MAX8510EXK16 can deliver full rated current without heatsinking in typical handheld layouts.

Does the MAX8510EXK16 support reverse polarity protection or input overvoltage clamp?

No - the MAX8510EXK16 lacks integrated reverse-polarity protection and input overvoltage clamping. Absolute maximum ratings specify IN-to-GND must remain between -0.3V and +7V; exceeding -0.3V risks damage. External protection (e.g., series Schottky diode for reverse polarity, TVS for transients) is required if system-level fault conditions exist. The MAX8510EXK16 relies on proper system-level design for robustness - its protection features are limited to overcurrent and thermal shutdown.