Analog Devices Inc./Maxim Integrated MAX15032EVKIT+

Overview

The MAX15032EVKIT+ from Maxim Integrated is an evaluation kit for the MAX15032 constant-frequency, current-mode PWM boost converter IC. It enables rapid validation of high-voltage bias generation (up to 36V) from low-input sources (2.7V–11V), delivering ≥600mW output power with 500kHz switching and <400µV_P-P ripple at 2mA load. Designed for PIN/varactor diode biasing and LCD display supplies in automotive-grade (-40°C to +125°C) systems.

For engineers reviewing the MAX15032EVKIT+ datasheet, MAX15032EVKIT+ pinout, MAX15032EVKIT+ application, or MAX15032EVKIT+ equivalent, this kit provides fully assembled, tested hardware with documented layout, BOM, test points, and configuration jumpers to verify startup behavior, load/line transient response, efficiency curves, and thermal performance under real-world conditions.

Technical Context

The MAX15032EVKIT+ implements the MAX15032 IC in a discontinuous conduction mode (DCM) boost topology using a 4.7µH inductor, 1A/40V Schottky diode, and 2.2µF X7R ceramic output capacitor. It supports dual input ranges: 2.7V–5.5V (with internal charge pump enabled via CP/CN pins) and 5.5V–11V (CP tied to IN, CN open).

Key design features include a 500kHz fixed-frequency current-mode controller, 1.245V FB reference, 0.5Ω typical R_DS(ON) lateral DMOS switch, and active-low SHDN with ≤0.5µA shutdown current. The board integrates soft-start (8ms), thermal shutdown (+160°C), and UVLO (2.5V typ) with 100mV hysteresis.

Key Specifications

Availability

MAX15032EVKIT+ is available at Aetrix Electronics and suitable for PIN diode biasing, LCD display power, avalanche photodiode supplies, STB audio IC rails, and varactor tuning applications requiring stable component supply, full documentation, and pre-validated thermal and EMI performance.

Supply support for MAX15032EVKIT+ 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 solutions for automotive, industrial, and communications markets.

The MAX15032 product line delivers low-noise, high-voltage boost conversion for precision biasing applications-designed specifically for systems needing clean, regulated >24V outputs from single-cell Li-ion or automotive battery inputs.

FAQ

What is the primary function of the MAX15032EVKIT+?

The MAX15032EVKIT+ is a fully assembled evaluation platform for the MAX15032 boost converter IC. It allows engineers to validate high-voltage bias generation (up to 36V) from low-input sources (2.7V–11V) without designing custom PCBs. The kit includes all critical passive components, test points for key nodes (LX, FB, SHDN), and jumper options to configure input range and enable/disable shutdown-enabling immediate characterization of efficiency, ripple, transient response, and thermal behavior of the MAX15032 in real operating conditions.

Does the MAX15032EVKIT+ support both input voltage ranges of the MAX15032 IC?

Yes, the MAX15032EVKIT+ supports both input ranges specified for the MAX15032 IC: 2.7V–5.5V (using internal charge pump) and 5.5V–11V (direct drive). Jumper JP1 configures CP and CN connections-closed for charge-pump mode (CP to IN, CN to flying cap), open for direct mode (CP tied to IN, CN left floating). This dual-mode capability lets users evaluate the MAX15032 across its full operational envelope without hardware modification.

What output voltage accuracy and regulation can be expected from the MAX15032EVKIT+?

The MAX15032EVKIT+ achieves output voltage accuracy within ±1.5% over temperature and load, based on the MAX15032's 1.245V (±2.5%) FB reference and precision resistor divider (R1 = 143kΩ, R2 = 6.2kΩ). At 30V output and 20mA load, measured regulation is ±0.1V line and ±0.05V load variation. The board uses X7R ceramic capacitors rated for -40°C to +125°C, ensuring stable feedback and minimal drift across the automotive temperature range.

How does the MAX15032EVKIT+ handle thermal management during sustained 600mW operation?

The MAX15032EVKIT+ implements thermal management via the MAX15032's exposed pad (EP) soldered directly to a large copper pour connected to PGND, achieving θ_JA ≈ 41°C/W as specified. Under 600mW continuous output (e.g., 30V/20mA), junction temperature rise is limited to ~35°C above ambient at +70°C ambient-well below the +150°C absolute max. Thermal shutdown activates at +160°C with 8°C hysteresis, and the board layout isolates LX switching noise from analog ground to prevent false triggering.

Can the MAX15032EVKIT+ be used to evaluate transient response for fast-switching loads like PIN diodes?

Yes, the MAX15032EVKIT+ is explicitly optimized for transient-critical applications such as PIN diode biasing. Its layout minimizes parasitic inductance on LX and PGND paths, and it includes dedicated test points for V_OUT (AC-coupled) and load current (via sense resistor). Typical load-step response (0→20mA) shows <100ms settling time with <200mV_P-P AC-coupled overshoot-verified in the MAX15032 datasheet Figure toc13. The board also supports RC post-filtering (RF = 10Ω, CF = 2.2µF) to further suppress switching artifacts for sensitive analog loads.