Analog Devices Inc./Maxim Integrated MAX1748EVKIT

Overview

The MAX1748EVKIT from Maxim Integrated is a fully assembled and tested surface-mount evaluation kit designed to demonstrate the MAX1748 boost switching regulator and dual charge-pump voltage regulators. It delivers +10V/200mA (boost), +15V/>20mA (positive charge-pump), and -5V/>20mA (negative charge-pump) from a +2.7V to +5.5V input, operating at 1MHz/500kHz switching frequencies with >85% efficiency and 0.1µA shutdown current.

For engineers reviewing the MAX1748EVKIT datasheet, MAX1748EVKIT pinout, MAX1748EVKIT application, or MAX1748EVKIT equivalent, this board enables rapid validation of multi-rail power architectures for portable medical, handheld instrumentation, and low-power analog signal chains requiring compact, high-efficiency bias supplies.

Technical Context

The MAX1748EVKIT implements a synchronous boost converter with internal MOSFETs and two independent regulated charge-pump circuits - one positive (doubler/tripler configurable) and one negative (inverter/doubler configurable). All three regulators are feedback-controlled via external resistor dividers, enabling output adjustment across wide ranges: +2.7V to +13V (boost), up to +25V (positive pump), and down to -15V (negative pump).

Jumper-selectable power routing allows either charge-pump stage to be powered from the input (PIN) or the boosted output (V1), while dedicated 3-pin headers (JU1–JU5) configure shutdown mode, feedback source selection (VP/VPA or VN/VNA), and input sourcing - all without soldering changes. The board supports reconfiguration to evaluate the pin-compatible MAX1779EUE with component swaps.

Key Specifications

Availability

MAX1748EVKIT is available at Aetrix Electronics and suitable for portable medical monitors, handheld test equipment, precision analog front-ends, and low-power industrial sensors requiring stable component supply and rapid power architecture validation.

Supply support for MAX1748EVKIT 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 ICs for industrial, medical, and communications applications.

The MAX1748EVKIT belongs to Maxim's power evaluation platform family, designed specifically to accelerate development of compact, multi-output bias supplies for space-constrained, battery-powered systems with stringent efficiency and quiescent current requirements.

FAQ

What is the primary function of the MAX1748EVKIT?

The MAX1748EVKIT is a fully assembled evaluation platform for the MAX1748 IC, demonstrating a triple-output power solution: a 1MHz boost regulator (+10V/200mA), a positive charge-pump (+15V/>20mA), and a negative charge-pump (-5V/>20mA). It enables engineers to validate performance, adjust outputs via resistors, and explore power routing options before integrating into final designs - all without soldering or configuration firmware.

Can the MAX1748EVKIT be used to evaluate the MAX1779 IC?

Yes, the MAX1748EVKIT can evaluate the MAX1779EUE after replacing specific components listed in the official documentation: C4/C6, C8, C19, C17/C21, L1, R1/R3/R5/R7, and U1. The reconfigured board delivers +5.1V/50–100mA (boost), +9V (VP), and -4V (VN). This hardware reuse reduces evaluation cost and accelerates comparison between the two ICs' performance trade-offs.

How do I configure the MAX1748EVKIT for different output voltages?

Output voltages on the MAX1748EVKIT are adjusted using external resistor dividers: R1/R2 for boost (range +2.7V to +13V), R3/R4 for positive pump (up to +25V), and R5/R6 for negative pump (down to -15V). Jumper settings (JU2/JU3) determine whether VP/VPA or VN/VNA is regulated, and JU4/JU5 select whether PIN or V1 powers each pump - all documented in the MAX1748EVKIT data sheet.

What are the jumper functions on the MAX1748EVKIT?

The MAX1748EVKIT uses five 3-pin headers: JU1 controls MAX1748 enable/shutdown; JU2 selects VP (doubler) or VPA (tripler) regulation; JU3 selects VN (inverter) or VNA (doubler) regulation; JU4 chooses PIN or V1 as SUPP input; JU5 chooses PIN or V1 as SUPN input. Each jumper has defined shunt positions (1–2 or 2–3) detailed in Tables 1–5 of the EV kit documentation.

What is the physical profile and component technology used on the MAX1748EVKIT?

The MAX1748EVKIT uses only surface-mount components on a compact PCB, with the MAX1748EUE in a 16-pin TSSOP package (1.1mm max height). Combined with low-profile passives (0603/1206/1210 capacitors, SOT23 diodes, and a 6.8µH shielded inductor), the full assembly achieves a total height under 1.2mm - making it suitable for ultra-thin portable devices where vertical space is constrained.