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MAX17271

MAX17271

nanoPower Triple-Output, Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator

NanoPower SIMO Buck Boost Converter. The Simplest Solution to Replace Clusters of Power Rails

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Overview

Description

The MAX17270/MAX17271 are 3-output switching regulators designed for applications requiring efficient regulation of multiple supplies in a very small space, such as wearable electronic devices.

The parts use a buck-boost architecture that regulates three outputs using a single, small 2.2μH inductor at efficiencies up to 85%. This results in smaller board space while delivering better total system efficiency than equivalent power solutions using one buck and linear regulators.

The supply current is 0.85μA when only one output is enabled, plus 0.2μA for each additional output enabled.

This SIMO (Single-Input Multiple-Output) regulator utilizes the entire battery voltage range due to its ability to create output voltages that are above, below, or equal to the input voltage. Peak inductor current for each output is programmable to optimize the balance between efficiency, output ripple, EMI, PCB design, and load capability.

Two versions are available. The MAX17270 has 3 enable inputs and 3 output voltage programming inputs. The MAX17271 includes an I2C interface with interrupt, a push-button turn on/off, and a power-good indication.

All versions are offered in either a 4 x 4, 0.4mm wafer-level package (WLP) or a 16-pin TQFN package.

Design Solution: Choose a Tailored SIMO PMIC for Your Portable Design ›

MAX17270, MAX17271: Simplified Application Circuit MAX17270, MAX17271: Simplified Application Circuit Enlarge+

Key Features

  • 3-Output Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator
  • 2.7V to 5.5V Input Voltage Range
  • Low-Power and Long Battery Life
    • 1.3µA Operating Current (3 SIMO Channels)
    • 330nA Shutdown Current
    • 85% Efficiency at 3.3V Output
  • Flexible and Configurable
    • I2C Compatible Interface (MAX17271)
    • Programmable Output Voltage: 0.8V to 5.175V MAX17270/MAX17271
    • Programmable Peak Current Limit
  • Robust
    • Soft-Start
    • Overload Protection
    • Thermal Protection
  • Small Size
    • 1.77mm x 1.77mm x 0.50mm, 16-Bump 0.4mm-Pitch WLP Package
    • 3mm x 3mm x 0.75mm, 16-pin TQFN Package
    • Small Total Solution Size

Applications/Uses

  • Bluetooth Headsets
  • Fitness Bands
  • Health Monitors
  • Hearables
  • Internet of Things (IoT)
  • Watches
  • Wearables

Parametric Specs

See parametric specs for Step-Down/Up Switching Regulators (33)


Part NumberVIN
(V)		VIN
(V)		VOUT1
(V)		IOUT1
(A)
(min)(max)(min)(max)
MAX17270 2.75.50.80.08
MAX17271 

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.

Design Resources


MAX17271EVKIT: Evaluation Kit for the MAX17271
MAX17270EVKIT: Evaluation Kit for the MAX17270

Technical Documents

App Note 6836 Choose a Tailored SIMO PMIC for your Portable Design

Additional Resources

 SIMO Calculator


Tools & Models

  • EE-Sim: Design & Simulate MAX17271
  • MAX17271 SIMPLIS Schematic

    •

    Quality And Environmental

    Request Reliability Report for: MAX17271 
    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 >

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    Tools & Models

    Technical Docs

    Type ID Title
    App Note 6836 Choose a Tailored SIMO PMIC for your Portable Design

    Reference Designs

    Type ID Title
    Evaluation Board9960MAX17270EVKIT Evaluation Kit for the MAX17270
    Evaluation Board9718MAX17271EVKIT Evaluation Kit for the MAX17271