High efficiency single inductor dual mode buck-boost DC-DC converter with 2.3 A switches peak current

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  • The STBB1-AXX is a fixed frequency, high efficiency, buck-boost DC-DC converter able to provide output voltages ranging from 1.2 V to 5.5 V and input voltages from 2.0 V to 5.5 V. The device can operate with input voltages higher than, equal to, or lower than the output voltage making the product suitable for single lithium-Ion, multicell alkaline or NiMH applications where the output voltage is within the battery voltage range. The integrated low-RDS(on) N-channel and P-channel MOSFET switches contribute to its high efficiency. The mode pin allows the selection between auto mode and forced PWM mode thus taking benefit either of lower power consumption or better dynamic performance. The device also includes soft-start control, thermal shutdown and current limit. The STBB1-AXX is packaged in DFN10 (3 x 3 mm).

    Key Features

    • Buck-boost DC-DC converter
    • Operating input voltage range from 2.0 V to 5.5 V
    • 2% DC feedback voltage tolerance
    • Synchronous rectification
    • Shutdown function
    • 1.5 MHz switching frequency
    • Power save mode at light load
    • Typical efficiency: > 94%
    • 2.3 A switches peak current limit at 3.3 V
    • Shutdown current < 1 µA
    • Available in DFN10 (3 x 3 mm)

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Part Number
Marketing Status
Quantity
Budgetary Price (US$)*
Package
Packing Type
Temperature (°C) ECCN (US)
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min
max
STBB1-APUR
Active
10000 1.023 DFN10 3X3 Tape And Reel -40 85 EAR99
MORE INFO

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofSTBB1-APUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 18766 1 Order Now
RS COMPONENTS EUROPE 2505 1 Order Now
MOUSER WORLDWIDE 23650 1 Order Now
Farnell Element14 EUROPE 4659 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

18766

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2505

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

23650

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4659

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Buy now

STBB1-APUR

Marketing Status

Active

Quantity

10000

Unit Price (US$)

1.023*

Distributor availability ofSTBB1-APUR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 18766 1 Order Now
RS COMPONENTS EUROPE 2505 1 Order Now
MOUSER WORLDWIDE 23650 1 Order Now
Farnell Element14 EUROPE 4659 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

18766

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2505

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

23650

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4659

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Unit Price (US$)

1.023

Package

DFN10 3X3

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

85

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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Evaluation Tools

    • Part Number

      1 A, high efficiency single inductor DC-DC converter based on the STBB1-APUR

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS8642
      High efficiency single inductor dual mode buck-boost DC-DC converter with 2.3 A switches peak current
      5.0
      2.86 MB
      PDF
      DS8642

      High efficiency single inductor dual mode buck-boost DC-DC converter with 2.3 A switches peak current

    • Description Version Size Action
      DN0007
      STBB1 buck-boost converter used as a 500mA LED driver with 1.8VDC-5.5VDC Vin
      1.2
      187.67 KB
      PDF
      DN0007

      STBB1 buck-boost converter used as a 500mA LED driver with 1.8VDC-5.5VDC Vin

Publications and Collaterals

    • Description Version Size Action
      Switching Converters (DC-DC) – Quick Reference Guide 1.0
      481.92 KB
      PDF

      Switching Converters (DC-DC) – Quick Reference Guide

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STBB1-APUR
Active
DFN10 3X3 Industrial Ecopack2

STBB1-APUR

Package:

DFN10 3X3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN10 3X3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.