Analog Devices Inc./Maxim Integrated MAX17250EVKIT#WLP

Overview

MAX17250EVKIT#WLP from Maxim Integrated is an evaluation kit for the MAX17250 synchronous boost converter IC, supporting input voltages from 2.7V to 18V and output voltages from 3V to 18V. It features True Shutdown™ (0.1μA shutdown current), selectable input peak current limit (1.85A/2.7A/3.5A), and operates in a compact 12-bump WLP package. The kit enables rapid validation of power supply designs for battery-powered IoT devices and display supplies.

For engineers reviewing the MAX17250EVKIT#WLP datasheet, MAX17250EVKIT#WLP pinout, MAX17250EVKIT#WLP application, or MAX17250EVKIT#WLP equivalent, this evaluation platform provides verified reference layout, thermal performance data, and configurable feedback networks to validate efficiency, transient response, and short-circuit protection behavior under real-world load conditions.

Technical Context

The MAX17250EVKIT#WLP implements the MAX17250's fixed on-time / minimum off-time PFM control architecture with 800ns maximum on-time and 200ns minimum off-time, enabling ultra-low quiescent current (60μA typical) across wide load ranges. It supports three ISET-configurable peak current limits and integrates internal high- and low-side FETs with R_DS(ON) as low as 95mΩ (ISET = VL).

This kit validates the MAX17250's True Shutdown™ mode-fully disconnecting input from output-and its robust protection suite: soft-start inrush limiting, overtemperature lockout at 165°C, and latched short-circuit protection. It accommodates both continuous and discontinuous conduction modes, with switching frequency varying from ~500kHz (CCM, 7.2V→12V) down to sub-100kHz at light loads.

Key Specifications

Availability

MAX17250EVKIT#WLP is available at Aetrix Electronics and suitable for battery-powered IoT device development, display supply design, and buzzer/alarm driver prototyping requiring stable component supply and fast time-to-test.

Supply support for MAX17250EVKIT#WLP 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 precision analog, mixed-signal, and power management solutions for industrial, automotive, and consumer applications.

The MAX17250 product line delivers high-efficiency, low-quiescent-current boost converters for space-constrained, battery-sensitive systems-designed specifically for 1–2 cell Li-ion applications where True Shutdown™ and programmable current limiting are critical.

FAQ

What is the purpose of the MAX17250EVKIT#WLP?

The MAX17250EVKIT#WLP is a fully assembled and tested evaluation platform for the MAX17250ANC+ synchronous boost converter. It allows engineers to validate key performance metrics-including efficiency, transient response, short-circuit behavior, and True Shutdown™ current-using the 12-bump WLP package variant. The kit includes optimized PCB layout, pre-populated components (inductor, capacitors, resistors), and test points for direct probing of IN, OUT, LX, FB, and EN signals.

Does the MAX17250EVKIT#WLP support both WLP and TDFN packages?

No-the MAX17250EVKIT#WLP is specifically configured for the MAX17250ANC+ in the 12-bump WLP package (outline 21-100158). It does not support the 14-pin TDFN variant (MAX17250ATD+). The land pattern, thermal vias, and component placement are optimized for the WLP's 1.72mm × 1.49mm footprint and bottom-terminal bump layout, including dedicated PGND thermal pad connections per Application Note 1891.

How is output voltage configured on the MAX17250EVKIT#WLP?

Output voltage on the MAX17250EVKIT#WLP is set via a three-resistor feedback network (R1, Rz, R2) connected between OUT and AGND. The default configuration uses R2 = 10kΩ, Rz = 1kΩ, and R1 = 84.5kΩ to achieve 12V output (V_OUT = 1.25V × (1 + (R1 + Rz)/R2)). The kit supports reconfiguration for 3V–18V outputs by changing R1 while maintaining 1% tolerance resistors and appropriate capacitor values per Table 3 in the datasheet.

What protection features can be validated using the MAX17250EVKIT#WLP?

The MAX17250EVKIT#WLP enables validation of four core protections: (1) True Shutdown™ (0.1μA drain with EN = 0V), (2) short-circuit latching (output disabled until reset via EN toggle or power cycle), (3) overtemperature lockout (165°C junction threshold), and (4) soft-start inrush limiting. These are confirmed through oscilloscope waveforms (toc11, toc12, toc17), thermal imaging, and current measurements per the Typical Operating Characteristics section of the MAX17250 datasheet.

Can the MAX17250EVKIT#WLP be used to evaluate efficiency across input/output combinations?

Yes-the MAX17250EVKIT#WLP supports efficiency measurement across its full operating range: VIN = 2.7V–18V and VOUT = 3V–18V. Test data (toc06–toc08) confirms >90% efficiency at mid-load (100–500mA) for common configurations like 7.2V→12V and 3.3V→5V. Input and output sense resistors allow simultaneous measurement of input/output current and voltage, enabling direct calculation of conversion efficiency without external instrumentation.