MAX16961

3A, 2.2MHz, Synchronous Step-Down DC-DC Converter

Compact 3A Automotive DC-DC Solution with EMI Reduction Features


Please check latest availability status for a specific part variant.

Description

The MAX16961 is a high-efficiency, synchronous step-down converter that operates with a 2.7V to 5.5V input voltage range and provides a 0.8V to 3.6V output voltage range. The wide input/output voltage range and the ability to provide up to 3A to load current make this device ideal for on-board point-of-load and post-regulation applications. The device achieves -3.7%/+2.6% output error over load, line, and temperature ranges.

The device features a 2.2MHz fixed-frequency PWM mode for better noise immunity and load transient response, and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz frequency operation allows for the use of all-ceramic capacitors and minimizes external components. The optional spread-spectrum frequency modulation minimizes radiated electromagnetic emissions.

Integrated low RDSON switches improve efficiency at heavy loads and make the layout a much simpler task with respect to discrete solutions.

The device can be offered with factory-preset output voltages, or with an adjustable output voltage (contact factory for preset output-voltage options). Factory-preset output-voltage versions allow customers to achieve -3.7%/+2.6% output-voltage accuracy without using external resistors, while the adjustable output-voltage version provides the flexibility to set the output voltage to any desired value between 0.8V to 3.6V using an external resistive divider.

Additional features include 8ms soft-start, 16ms power-good output delay, overcurrent, and overtemperature protections.

The MAX16961 is available in thermally enhanced 16-pin TSSOP-EP and 16-pin (4mm x 4mm) TQFN-EP packages, and is specified for operation over the -40°C to +125°C automotive temperature range.
MAX16961: Typical Application Circuit MAX16961: Typical Application Circuit Enlarge+

Key Features

  • Small External Components
    • 2.2MHz Operating Frequency
  • Ideal for Point-of-Load Applications
    • 3A Maximum Load Current
    • Adjustable Output Voltage: 0.8V to 3.6V
    • 2.7V to 5.5V Operating Supply Voltage
  • High Efficiency at Light Load
    • 26µA Skip Mode Quiescent Current
  • Minimizes Electromagnetic Interference
    • Programmable SYNC I/O Pin
    • Operates Above AM-Radio Band
    • Available Spread Spectrum
  • Low Power Mode Saves Energy
    • 1µA Shutdown Current
  • Open-Drain Power-Good Output
  • Limits Inrush Current During Startup
    • Soft-Start
  • Overtemperature and Short-Circuit Protections
  • 16-Pin TSSOP-EP and 16-Pin (4mm x 4mm) TQFN-EP Packages
  • -40°C to 125°C Operating Temperature Range

Applications/Uses

  • Automotive Infotainment
  • Industrial/Military
  • Point-of-Load Applications

See parametric specs for Step-Down Switching Regulators (409)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
IOUT1
(A)
(min)(max)(min)(max)
MAX16961 2.75.50.83

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Request Reliability Report for: MAX16961 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

 
Status:
Package:
Temperature:

Related Resources


MAX17783C
4.5V to 60V, 2.5A, High Efficiency, Step-Down DC-DC Converter

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAX20028
Step-Down Controller with Dual 2.1MHz Step-Down DC-DC Converters

  • High-Efficiency Voltage DC-DC Controller Saves Power
  • Dual 2.1MHz DC-DC Converters with Integrated FETs Saves Space
  • High Accuracy to Meet ASIL Specification

MAX77533
14V Input, 1.5A High-Efficiency Buck Converter with 9μA IQ

  • 1.5A Single Channel Buck Regulator
  • 3V to 14V Input Voltage Range
  • 0.8V to 99%VSUP Output Voltage Range

MAX20766
Smart Slave IC with Integrated Current and Temperature Sensors

  • Increased Power Density with Fewer External Components
  • Accurate Real-Time Telemetry of Critical Parameters
  • Advanced Self-Protection Features for the System and IC

MAX20796
Dual-Phase Scalable Integrated Voltage Regulator with PMBus Interface

  • Peak Efficiency 92%; Full-Load Efficiency 90% at VIN = 12V, VOUT = 1V
  • Operating Input Voltage Range 4.5V to 16V
  • Output Voltage Range is 0.5V to 5.5V

MAX17227A
400mV to 5.5V Input, 2A nanoPower Boost Converter with Short-Circuit Protection and True Shutdown

  • 350nA Quiescent Supply Current from Output
  • Output Short-Circuit Protection
  • True Shutdown Mode

MAX20030
Dual Buck, Sync Boost and LDO–Complete Front-End Power Supply with 17μA IQ

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
  • Enables Crank-Ready Designs
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

MAX20031
Dual Buck, Sync Boost and LDO–Complete Front-End Power Supply with 17μA IQ

  • Meets Stringent OEM Module Power Consumption and Performance Specifications
  • Enables Crank-Ready Designs
  • EMI Reduction Features Reduce Interference with Sensitive Radio Bands without Sacrificing Wide Input Voltage Range

MAX25431
Automotive 40V, 2.2MHz, H-Bridge Buck-Boost Controller

  • Meets Stringent Automotive Quality and Reliability Requirements
  • Efficient Solution in a Small Solutions Size
  • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements

MAX20710
Integrated, Step-Down Switching Regulator with PMBus

  • High Power Density and Low Component Count
  • Optimized Component Performance and Efficiency with Reduced Design-In Time
  • Increased Power-Supply Reliability with System and IC Self-Protection Features

MAX17760
4.5V to 76V, 300mA, High-Efficiency, Synchronous Step-Down DC-DC Converter

  • Reduces External Components and Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation

MAX20430
Four-Output Mini PMIC for Safety Applications

  • Multiple Functions for Small Size
  • High-Precision for ASIL Applications
  • Diagnostics and Redundant Circuits

MAX18066
High-Efficiency, 4A, Step-Down DC-DC Regulator with Internal Power Switches

  • Feature Integration Shrinks Solution Size
  • High Efficiency Conserves Power
  • Safe, Reliable, Accurate Operation

MAX18166
High-Efficiency, 4A, Step-Down DC-DC Regulator with Internal Power Switches

  • Feature Integration Shrinks Solution Size
  • High Efficiency Conserves Power
  • Safe, Reliable, Accurate Operation

MAX77511
10V Input, Quad-Phase Configurable, 3A/Phase, High-Efficiency Buck Converter

  • 3A/Phase Configurable Buck Regulator
  • 2.3V to 10V Input Voltage Range
  • 0.25V to 5.2V Output Voltage Range

MAX77711
10V Input, Quad-Phase Configurable, 3A/Phase, High-Efficiency Buck Converter

  • 3A/Phase Configurable Buck Regulator
  • 2.3V to 10V Input Voltage Range
  • 0.25V to 5.2V Output Voltage Range

MAX15158, MAX15158A
High-Voltage Multiphase Boost Controller

  • Wide Operating Range
  • Integration Reduces Design Footprint
  • Robust Fault Protection Improves Quality and Reliability

MAX15158A
High-Voltage Multiphase Boost Controller

  • Wide Operating Range
  • Integration Reduces Design Footprint
  • Robust Fault Protection Improves Quality and Reliability