MAX16935RATE/V+T

Voltage Regulators - DC DC Switching Regulators Overview

The MAX16935RATE/V+T is a 3.5A current-mode step-down converter with integrated high-side and low-side MOSFETs, designed for operation with an external Schottky diode to enhance efficiency. It operates from a 3.5V to 36V input voltage range while consuming only 28µA quiescent current at no load. The switching frequency is resistor programmable from 220kHz to 2.2MHz and can be synchronized to an external clock. Output voltages are available as fixed 3.3V/5V or adjustable from 1V to 10V. The device supports fixed-frequency forced-PWM operation under light loads and includes protection features such as cycle-by-cycle current limit and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side and low-side MOSFETs enable efficient step-down conversion with external Schottky diode support.
• Resistor-programmable switching frequency up to 2.2MHz allows optimization for size and performance.
• Fixed-frequency forced-PWM mode eliminates frequency variation to minimize EMI in sensitive applications.
• Ultra-low 28µA quiescent current ensures minimal power consumption during no-load conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load applications
• Distributed DC power systems
• Navigation and radio head units

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix 'RATEB' against official Analog Devices documentation, as standard listings often use 'CAUERB' or 'SAUE'. Confirm AEC-Q100 automotive qualification status directly with the manufacturer. Check for end-of-life notices, as some variants may be discontinued. Ensure the package matches the specified 16-pin TQFN-EP dimensions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when high efficiency with an external diode is required alongside integrated synchronous rectification. The wide 3.5V to 36V input range suits automotive environments with load dump conditions. Choose the adjustable output variant if precise voltage regulation between 1V and 10V is needed. Consider the 2.2MHz max frequency for compact passive component sizing.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the MAX16935/MAX16939 family of 36V, 3.5A step-down converters. Designed for automotive and industrial applications requiring high efficiency and low quiescent current. Offers flexibility through programmable frequency and multiple output options. Compatible with standard PCB layouts for buck converters.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

MAX16935CAUERB/V+T: Standard TSSOP-EP-16 package variant. MAX16935SAUE/V+T: TSSOP-EP-16 package with fixed 5V output. Verify pinout compatibility and thermal performance differences between TQFN and TSSOP packages before substitution.