Analog Devices Inc./Maxim Integrated MAX15070AEUT+

Overview

MAX15070AEUT+ from Maxim Integrated is a high-speed dual-output MOSFET driver IC with independent 7A sink (N_OUT) and 3A source (P_OUT) capability, 12ns typical propagation delay, TTL-compatible logic inputs, and operation from +4V to +14V supply - designed for precise gate control in synchronous buck converters and half-bridge power stages.

For engineers reviewing the MAX15070AEUT+ datasheet, MAX15070AEUT+ pinout, MAX15070AEUT+ application, or MAX15070AEUT+ equivalent, key selection criteria include matched input delays (<500ps), shoot-through prevention logic, thermal shutdown at +166°C, low 10pF input capacitance, and SOT23-6 package compatibility with high-density PCB layouts.

Technical Context

The MAX15070AEUT+ implements break-before-make control between complementary P_OUT and N_OUT outputs to eliminate shoot-through during switching transitions. Its internal logic ensures that both outputs never conduct simultaneously, even under fast input edge rates or mismatched propagation paths.

It features TTL-level input thresholds (VIH = 2.0V min, VIL = 0.8V max), 10pF typical input capacitance, and robust ±16V input overvoltage tolerance independent of V+ - enabling direct interfacing with microcontroller GPIOs and PWM controllers without level-shifting circuitry.

Key Specifications

Pinout & Package

MAX15070AEUT+ is housed in a RoHS-compliant 6-pin SOT23 package (outline 21-0058), optimized for space-constrained power designs with PCB trace routing possible underneath the device.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar MOSFET driver applications.

Compared with MAX15070BAUT+, the MAX15070AEUT+ offers tighter TTL-level compatibility and lower minimum supply voltage (4V vs. 6V), while TC4427ACOA lacks complementary outputs and shoot-through protection - making MAX15070AEUT+ the only option among the three with integrated break-before-make logic and matched 12ns delays for high-frequency synchronous topologies.

Availability

MAX15070AEUT+ is available at Aetrix Electronics and suitable for DC-DC converters, motor control systems, and telecom power modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAX15070AEUT+ 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 industrial, automotive, and communications applications.

The MAX15070A/B series was developed specifically for high-efficiency, high-frequency power conversion - delivering fast, reliable gate drive with integrated safety logic for synchronous rectification and half-bridge topologies.

FAQ

What is the maximum capacitive load the MAX15070AEUT+ can drive while maintaining 12ns propagation delay?

The MAX15070AEUT+ maintains its 12ns typical propagation delay with CL ≤ 1nF. At CL = 5nF, propagation delay increases to 11–12ns (typ), and at CL = 10nF, it rises to 17–18ns. For consistent sub-12ns timing, keep total gate + trace capacitance below 1nF - achievable using short traces and low-Ciss MOSFETs. The MAX15070AEUT+ datasheet specifies tD-ON/tD-OFF values across CL = 1nF, 5nF, and 10nF loads.

Does the MAX15070AEUT+ support 3.3V logic inputs?

No - the MAX15070AEUT+ uses TTL-compatible input thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V), but its minimum V+ supply is +4V. While 3.3V logic signals may meet VIH/VIL levels, they cannot reliably power the IC. For true 3.3V system compatibility, use a level shifter or select the MAX15070BAUT+ with HNM inputs (VIH = 4.25V min) driven from 5V logic rails.

How does the MAX15070AEUT+ prevent shoot-through in half-bridge configurations?

The MAX15070AEUT+ integrates break-before-make (BBM) control logic that guarantees a minimum 2ns dead time between P_OUT turn-off and N_OUT turn-on (and vice versa). This hardware-enforced gap prevents simultaneous conduction of high- and low-side MOSFETs - eliminating shoot-through current even during fast input transitions or supply transients.

Can the MAX15070AEUT+ drive both high-side and low-side N-channel MOSFETs in a synchronous buck converter?

Yes - the MAX15070AEUT+'s complementary P_OUT (source) and N_OUT (sink) outputs are designed precisely for this topology. P_OUT drives the high-side N-MOSFET gate above its source (via bootstrap or isolated supply), while N_OUT pulls the low-side N-MOSFET gate to GND. Its 3A/7A peak currents and matched delays ensure balanced switching edges and minimal cross-conduction risk in the MAX15070AEUT+ application circuit.

What thermal considerations apply when operating the MAX15070AEUT+ at full 7A sink current?

At 7A peak sink current, the MAX15070AEUT+'s N_OUT resistance (0.256Ω typ at +25°C) generates ~125mW instantaneous power. Combined with quiescent and switching losses, total dissipation must stay below 696mW at +70°C ambient. Use a 4-layer PCB with internal ground plane, thermal vias under the SOT23 pad, and keep ambient ≤ +85°C for continuous 7A pulsed operation - verified in the MAX15070AEUT+ thermal characterization data.