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Power Switching Regulator - Switching Regulators MAX17271
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MAX17271

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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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Product Details

See parametric specs for Step-Down/Up Switching Regulators

Key Features

See parametric specs for Step-Down/Up Switching Regulators
Parametric specs for Step-Down/Up Switching Regulators
VIN (V) (min) 2.7
VIN (V) (max) 5.5
VOUT1 (V) (min) 0.8
VOUT1 (V) (max) 5.175
IOUT1 (A) (max) 0.08
Switch Type Internal
VOUT1 Tolerance (±%) 2
Synchronous Switching? Yes
IQ (mA) (max) 0.0015
# DC-DC Outputs 3
Alternate Topology Step-Down
Step-Up
Design Tools EE-Sim
Package/Pins THIN WLP/16
TQFN/16
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes) 		2.55
See parametric specs for Step-Down/Up Switching Regulators
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Simplified Block Diagram

Technical Docs

Data Sheet nanoPower Triple-Output, Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator Nov 01, 2019
User Guide MAX17271 Programmer's Guide
Design Solution Choose a Tailored SIMO PMIC for your Portable Design

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Parameters

Parametric specs for Step-Down/Up Switching Regulators
VIN (V) (min) 2.7
VIN (V) (max) 5.5
VOUT1 (V) (min) 0.8
VOUT1 (V) (max) 5.175
IOUT1 (A) (max) 0.08
Switch Type Internal
VOUT1 Tolerance (±%) 2
Synchronous Switching? Yes
IQ (mA) (max) 0.0015
# DC-DC Outputs 3
Alternate Topology Step-Down
Step-Up
Design Tools generateDesignEESIMUrl('https://maxim.transim.com/pwm2/designreq/Index?partId=8581', '')
Package/Pins THIN WLP/16
TQFN/16
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes) 		2.55
See parametric specs for Step-Down/Up Switching Regulators

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

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 ›

Simplified Block Diagram

MAX17270, MAX17271: Simplified Application Circuit MAX17270, MAX17271: Simplified Application Circuit Zoom icon

Technical Docs

Data Sheet nanoPower Triple-Output, Single-Inductor, Multiple-Output (SIMO) Buck-Boost Regulator Nov 01, 2019
User Guide MAX17271 Programmer's Guide
Design Solution Choose a Tailored SIMO PMIC for your Portable Design

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.