Analog Devices Inc./Maxim Integrated MAX16910CASA8/V+

Overview

The MAX16910CASA8/V+ from Analog Devices is an automotive-qualified, ultra-low quiescent current linear regulator delivering up to 200mA at fixed +3.3V output, operating from +3.5V to +30V input with only 20µA no-load supply current and +45V transient tolerance. It features open-drain active-low RESET with 87.5% threshold and 60µs default delay, thermal shutdown, short-circuit protection, and is housed in an 8-pin SO-EP package rated for -40°C to +125°C.

For engineers reviewing the MAX16910CASA8/V+ datasheet, MAX16910CASA8/V+ pinout, MAX16910CASA8/V+ application, or MAX16910CASA8/V+ equivalent, this page provides verified functional identity, validated pin roles, confirmed automotive-grade thermal and transient performance, exact RESET threshold and delay behavior, and real-world design meaning of its low-I_Q, dropout, and enable interface - all critical for battery-sensitive and load-dump-resilient vehicle ECUs.

Technical Context

The MAX16910CASA8/V+ implements a high-voltage BiCMOS DMOS linear regulation architecture with integrated feedback mux, enabling user-selectable fixed (+3.3V or +5V) or adjustable (1.5V–11V) output via SET/SETOV logic. Its control loop maintains stability with only 4.7µF ceramic output capacitance across -40°C to +125°C.

RESET generation uses internal voltage comparators referenced to 87.5% of V_OUT, with timeout timing derived from a 1.0µA ramp current into TIMEOUT pin capacitance; ENABLE accepts up to +45V and includes 0.65µA internal pulldown for three-state-safe shutdown. Thermal protection triggers at +180°C with +25°C hysteresis.

Key Specifications

Pinout & Package

MAX16910CASA8/V+ uses an 8-pin SO-EP (5mm × 4mm) package with exposed pad thermally connected to GND. The EP must be soldered to PCB ground plane for thermal performance (θ_JA = 53°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX16910CASA8/V+, the MAX16910CATA8/V+ offers superior thermal resistance in a smaller footprint but demands tighter layout control, while the TLV73333PDBVR sacrifices automotive robustness and integrated supervision for cost and size reduction in benign applications.

Availability

MAX16910CASA8/V+ is available at Aetrix Electronics and suitable for automotive body electronics, ADAS sensor nodes, and telematics systems requiring stable component supply with guaranteed AEC-Q100 compliance, long-term lifecycle support, and traceable automotive-grade sourcing.

Supply support for MAX16910CASA8/V+ 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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets with precision power, sensing, and signal chain solutions.

The MAX16910 belongs to Analog Devices' automotive power management portfolio, designed specifically for harsh-environment vehicle subsystems requiring ultra-low quiescent current, load-dump resilience, and integrated system supervision functions.

FAQ

What is the RESET threshold voltage for MAX16910CASA8/V+?

The MAX16910CASA8/V+ has a fixed RESET threshold of 87.5% of its output voltage. For its +3.3V fixed output, this equals 2.8875V nominal, with ±2.5% variation over temperature and load. The RESET output remains asserted low for a minimum of 60µs after V_OUT exceeds this threshold, and the timeout can be extended using a capacitor on the TIMEOUT pin. This precise threshold eliminates need for external reset monitors in automotive microcontroller interfaces.

Does MAX16910CASA8/V+ support adjustable output voltage?

Yes, MAX16910CASA8/V+ supports adjustable output from +1.5V to +11V by configuring SET high (>2.4V) and connecting SETOV to an external resistive divider between OUT and GND. The output follows V_OUT = 1.25V × (1 + R1/R2), where R2 ≤ 100kΩ. However, the MAX16910CASA8/V+ variant is factory-configured for +3.3V fixed output; adjustable mode requires correct SET/SETOV biasing per the datasheet's Functional Description section.

What package type and thermal characteristics does MAX16910CASA8/V+ have?

MAX16910CASA8/V+ uses an 8-pin SO-EP (5mm × 4mm) package with exposed thermal pad connected to GND. Its junction-to-ambient thermal resistance is 53°C/W (θ_JA) on a multilayer board, and junction-to-case is 7°C/W (θ_JC). Derating begins above +70°C at 23.3mW/°C, allowing 1.861W max power dissipation at +70°C ambient. Proper EP soldering to ground plane is mandatory for thermal performance.

How does the ENABLE pin function on MAX16910CASA8/V+?

The ENABLE pin on MAX16910CASA8/V+ is active-high with VIH ≥ 2.4V and VIL ≤ 0.4V. It features an internal 0.65µA pulldown current, ensuring reliable shutdown when left floating or driven by high-impedance sources. ENABLE tolerates up to +45V, permitting direct connection to battery rail without level-shifting. When ENABLE is low, MAX16910CASA8/V+ enters shutdown consuming only 1.6µA, and RESET asserts low.

Is MAX16910CASA8/V+ qualified for automotive use?

Yes, MAX16910CASA8/V+ is AEC-Q100 qualified for automotive applications, with operating temperature range of -40°C to +125°C ambient and junction limit of +150°C. It meets ISO 7637-2 load-dump immunity (+45V transient), includes thermal shutdown at +180°C with +25°C hysteresis, and features short-circuit protection (330mA typical). The "/V+" suffix explicitly denotes automotive qualification per Analog Devices' ordering guide.