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MAX17271

MAX17271

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

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

Data Sheet
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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. The MAX17272/MAX17273 are 2-output versions of MAX17270/MAX17271, respectively.

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: Typical Operating Circuit MAX17270, MAX17271: Typical Operating Circuit Enlarge+

Key Features

  • 3-Output/2-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/MAX17273)
    • Programmable Output Voltage: 0.8V to 5.175V
    • Programmable Peak Current Limit
  • Robust
    • Soft-Start
    • Overload Protection
    • Thermal Protection
  • Small Size
    • 1.77mm x 1.77mm x 0.50mm 0.4mm-Pitch WLP Package
    • 3mm x 3mm x 0.75mm TQFN Package
    • Small Total Solution Size

Parametric Specs

Part NumberVIN
(V)		VIN
(V)		VOUT1
(V)		VOUT1
(V)		VOUT1 Tolerance
(±%)		Output Adjust. MethodSwitch TypeSynchronous SwitchingICC
(mA)		Alternate TopologyDesign ToolsPackage/PinsOper. Temp.
(°C)		Budgetary
Price
minmaxminmaxmaxSee Notes
MAX17270 NEW!2.75.50.84.62ResistorInternalYes0.0015
Step-Down
Step-Up
EE-Sim
THIN QFN/16
WLP/16
-40 to +85$1.84 @1k
MAX17271 NEW!5.175-
THIN QFN/16
WLP/16
$1.94 @1k
See All Step-Down/Up Switching Regulators (21)
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

Quality and Environmental Data

Request Reliability Report for: MAX17271 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

  • EE-Sim: Design & Simulate MAX17271

    • Software
    MAX17271 EV Kit Software  

    CAD Symbols and Footprints

  • MAX17271ENE+
  • MAX17271ENE+T
  • MAX17271ETE+
  • MAX17271ETE+T
    •

    Quality And Environmental

    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    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

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    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