Analog Devices Inc./Maxim Integrated MAX17291EVK#TDFN

Overview

MAX17291EVK#TDFN from Maxim Integrated is an evaluation kit designed to validate the MAX17291ATA+ low-quiescent-current boost DC-DC converter in 8-pin TDFN (2mm × 2mm) package. It supports 1.8V–5.5V input, delivers up to 310mA at 12V output (default configuration), and includes TrueShutdown™, short-circuit protection, and resistor-configurable 5.5V–20V output voltage.

For engineers reviewing the MAX17291EVK#TDFN datasheet, MAX17291EVK#TDFN pinout, MAX17291EVK#TDFN application, or MAX17291EVK#TDFN equivalent, this EV kit enables rapid functional validation of the MAX17291's high-efficiency step-up operation, POK monitoring, EN control, and compact PCB implementation under real-world load and input conditions.

Technical Context

The MAX17291EVK#TDFN implements a complete, fully assembled reference design for the MAX17291ATA+, featuring a proven 2-layer, 2oz copper layout with optimized thermal and EMI performance. It integrates all critical external components: 10µH shielded inductor (L1), 10µF/4.7µF ceramic input/output capacitors, 150µF aluminum electrolytic bulk capacitor (C6), and 5V TVS diode (D1) for transient protection.

Jumper-controlled functionality includes EN enable/disable via JU1 (pins 1–2 = enabled, 2–3 = disabled) and POK pull-up source selection via JU2 (IN through R6 or OUT through R7, both 100kΩ). The board provides test points (TP1–TP6), banana jack terminals (IN/OUT/PGND), and LX probe point for switching node analysis.

Key Specifications

Availability

MAX17291EVK#TDFN is available at Aetrix Electronics and suitable for power management validation, battery-powered sensor node development, portable medical device prototyping, and industrial IoT edge node design requiring stable component supply and fast-turn evaluation support.

Supply support for MAX17291EVK#TDFN 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, mixed-signal, and power management ICs for demanding industrial, automotive, and computing applications.

The MAX17291 product line targets ultra-low-power, high-voltage boost conversion in space-constrained battery-operated systems, emphasizing micropower operation (<1.5µA quiescent current) and robust fault handling.

FAQ

What is the default output voltage configured on the MAX17291EVK#TDFN?

The MAX17291EVK#TDFN is factory-configured for 12V output using resistors R1 (3.48MΩ) and R2 (402kΩ) in the feedback divider network. This setting is verified per the Quick Start procedure and matches the schematic's V_OUT = V_FB × (1 + R1/R2) ≈ 12V, where V_FB = 1.215V per the MAX17291ATA+ datasheet.

How do I enable or disable the MAX17291 IC on the MAX17291EVK#TDFN?

Enable or disable the MAX17291 IC on the MAX17291EVK#TDFN using jumper JU1: install shunt on pins 1–2 to enable (EN tied to IN), or pins 2–3 to disable (EN tied to GND). This matches Table 1 in the EV kit documentation and directly controls the EN pin of the installed MAX17291ATA+.

What is the purpose of the POK signal and how is it configured on the MAX17291EVK#TDFN?

The POK (Power OK) signal on the MAX17291EVK#TDFN is an open-drain output indicating regulation status. It is pulled up via jumper JU2: pins 1–2 connect to IN through R6 (100kΩ), pins 2–3 connect to OUT through R7 (100kΩ). No external pull-up is required when JU2 is installed, enabling immediate POK monitoring without additional components.

Can the MAX17291EVK#TDFN be used to evaluate different output voltages?

Yes - the MAX17291EVK#TDFN supports resistor-configurable output from 5.5V to 20V by modifying the R1/R2 feedback divider. The board includes solder pads for R1 and R2, and the MAX17291ATA+'s 1.215V feedback reference allows precise calculation of new resistor values per the formula V_OUT = 1.215V × (1 + R1/R2).

Is the MAX17291EVK#TDFN fully assembled and tested before shipment?

Yes - the MAX17291EVK#TDFN ships fully assembled and tested, with the MAX17291ATA+ (TDFN) pre-installed, all passive components populated (except DNP items), and validated operation at 12V/310mA. The "Quick Start" procedure confirms functional readiness without rework or soldering.