Analog Devices Inc./Maxim Integrated MAX710EVKIT

Overview

The MAX710EVKIT from Maxim Integrated is an evaluation kit designed to demonstrate and validate the operation of the MAX710 step-up/down DC-DC converter IC in real-world battery-powered systems. It supports 3.3V or 5V fixed-output configurations, accepts input voltages from +1.8V to +11V, delivers up to 500mA at 5V from a 3.6V source, and enables rapid prototyping of low-noise or high-efficiency power architectures for portable equipment.

For engineers reviewing the MAX710EVKIT datasheet, MAX710EVKIT pinout, MAX710EVKIT application, or MAX710EVKIT equivalent, this kit provides immediate access to validated reference designs, thermal performance data, load/line transient waveforms, efficiency curves, and configuration guidance for single-cell Li+, multi-cell alkaline, and AC-adapter hybrid power systems.

Technical Context

The MAX710EVKIT implements the MAX710's integrated architecture: a PFM-controlled N-channel MOSFET boost stage followed by a P-channel LDO with shared 1.25V reference. It supports four operating modes-high-efficiency (N/E = GND), low-noise (N/E = PS), and two adaptive configurations using the LBO comparator-to optimize ripple rejection or conversion efficiency across varying input conditions.

Key circuit-level features include active shutdown disconnecting VIN from VOUT (ISHDN = 0.2µA), standby mode retaining only the LDO (IQ = 7µA), programmable current limit (0.8A/1.5A via ILIM), and precision low-battery detection with 50mV hysteresis. The board integrates all critical passives: 22µH inductor, Schottky rectifier, 100µF output capacitor, and 4.7µF LDO stabilization cap.

Key Specifications

Availability

MAX710EVKIT is available at Aetrix Electronics and suitable for digital camera power subsystems, lithium-ion handheld medical monitors, multi-cell alkaline test instrumentation, and battery-plus-AC adapter hybrid power supplies requiring stable component supply and rapid design validation.

Supply support for MAX710EVKIT 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 industrial, automotive, communications, and consumer applications.

The MAX710EVKIT belongs to Maxim's legacy power management evaluation platform line, engineered specifically to accelerate development of efficient, compact, and reliable DC-DC conversion circuits for battery-constrained portable electronics.

FAQ

What is the primary function of the MAX710EVKIT?

The MAX710EVKIT is an evaluation kit that demonstrates the MAX710 step-up/down DC-DC converter IC. It enables engineers to verify performance metrics-including efficiency, transient response, startup behavior, and mode switching-under real load and input conditions. The MAX710EVKIT includes all necessary components (inductor, diode, capacitors, resistors) pre-mounted on a PCB with test points and jumpers for quick configuration of 3.3V/5V outputs, N/E mode selection, and low-battery threshold tuning.

Does the MAX710EVKIT support both MAX710 and MAX711 ICs?

No-the MAX710EVKIT is specifically configured for the MAX710, which has fixed 3.3V or 5V output voltage selection via the 3/5 pin. It does not support the MAX711's adjustable output (2.7V–5.5V) because the board lacks the FB feedback network and external resistor divider required for voltage programming. For MAX711 evaluation, Maxim recommends the MAX711EVKIT or custom implementation using the MAX711's evaluation schematic.

How do I configure the MAX710EVKIT for 3.3V vs. 5V output?

On the MAX710EVKIT, the output voltage is set by the 3/5 pin connection: tie 3/5 to ground for 5V output, or connect it to the OUT node for 3.3V output. The board includes solder jumpers or test points to implement either configuration without component replacement. This matches the MAX710's internal logic-no external resistors or firmware changes are needed to switch between the two fixed outputs.

What are the key differences between high-efficiency and low-noise modes on the MAX710EVKIT?

In high-efficiency mode (N/E = GND), the linear regulator acts as a low-RDS(on) PFET switch during boost, minimizing conduction loss but offering limited ripple rejection. In low-noise mode (N/E = PS), the LDO maintains ~0.5V headroom (VFV) across its pass element, significantly attenuating switching ripple at the cost of ~10% lower efficiency. The MAX710EVKIT allows direct comparison of both modes using the N/E jumper and oscilloscope measurements at the OUT test point.

Can the MAX710EVKIT be used for long-term production power supply design?

The MAX710EVKIT is intended for evaluation and prototyping-not for production deployment. Its layout, component selection (e.g., through-hole diode, non-optimized thermal relief), and lack of safety certifications make it unsuitable for end-product use. However, the MAX710EVKIT provides validated reference schematics, bill-of-materials, and layout guidelines that can be directly translated into production-grade designs using the MAX710 IC, enabling robust, space-efficient power solutions for portable equipment.