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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

Please check latest availability status for a specific part variant.

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: Simplified Application Circuit

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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 Number

V_IN
(V)

V_OUT1
(V)

V_OUT1 Tolerance
(±%)

Output Adjust. Method

Switch Type

Synchronous Switching

I_CC
(mA)

Alternate Topology

Design Tools

Package/Pins

Oper. Temp.
(°C)

Budgetary
Price

min

max

min

max

See Notes

MAX17270

2.7

5.5

0.8

4.6

Resistor

Internal

Yes

0.0015

Step-Down

Step-Up

EE-Sim

THIN WLP/16

TQFN/16

-40 to +85

$1.94 @1k

MAX17271

5.175

THIN WLP/16

TQFN/16

$2.04 @1k

See All Step-Down/Up Switching Regulators (28)

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

Software

MAX17271 EV Kit Software

CAD Symbols and Footprints

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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.

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Environmental Management System >

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