800 mA 2.5 MHz, high efficiency dual mode buck-boost DC-DC converter

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  • The STBB2 is a fixed frequency, high efficiency, buck-boost DC-DC converter which provides output voltages from 1.2 V to 4.5 V starting from input voltage from 2.4 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 Li-Ion, multi-cell alkaline or NiMH applications where the output voltage is within the battery voltage range. The low-RDS(on)N-channel and P-channel MOSFET switches are integrated and help to achieve high efficiency. The MODE pin allows the selection between auto mode and forced PWM mode, taking advantage from either lower power consumption or best dynamic performance. The bypass function allows the battery power saving. In this operating mode, the high-side switches are turned on so that the output voltage is equal to the input voltage; in this condition the current consumption is reduced to a maximum of 5 μA. The device also includes soft-start control, thermal shutdown, and current limit. The STBB2 is packaged in Flip Chip 20 bumps with 0.4 mm pitch.

    Key Features

    • Operating input voltage range from 2.4 V to 5.5 V
    • ± 2% output voltage tolerance over process and temperature variations
    • Bypass power save function
    • Selectable output voltage with dedicated VSEL pin
    • Very fast line and load transients
    • 2.5 MHz switching frequency
    • Power save mode (PS) at light load
    • Typical efficiency higher than 90%
    • 50 μA max. quiescent current
    • Flip Chip 20 bumps 0.4 mm pitch 2.1 x 1.8 mm

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STBB2JAD-R
Active
1000 1.074 Flip Chip 20 Tape And Reel - - EAR99
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Country of Origin:

CHINA

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Distributor availability ofSTBB2JAD-R

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DIGIKEY WORLDWIDE 100 1 Order Now
RS COMPONENTS EUROPE 4825 1 Order Now
MOUSER WORLDWIDE 100 1 Order Now
Farnell Element14 EUROPE 1294 1 Order Now

Distributor reported inventory date: 2019-05-24

Distributor Name

DIGIKEY

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4825

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1294

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-24

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STBB2J29-R
Active
1000 1.074 Flip Chip 20 Tape And Reel -40 85 EAR99
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Country of Origin:

-

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Distributor availability ofSTBB2J29-R

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AVNET AMERICA 5000 0 Order Now

Distributor reported inventory date: 2019-05-24

Distributor Name

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2019-05-24

STBB2J30-R
Active
1000 1.074 Flip Chip 20 Tape And Reel - - EAR99
MORE INFO

Country of Origin:

-

Check Availability

Distributor availability ofSTBB2J30-R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 4380 1 Order Now

Distributor reported inventory date: 2019-05-24

Distributor Name

Farnell Element14

Stock

4380

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-24

STBB2JAD-R

Marketing Status

Active

Quantity

1000

Unit Price (US$)

1.074*

Distributor availability ofSTBB2JAD-R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 100 1 Order Now
RS COMPONENTS EUROPE 4825 1 Order Now
MOUSER WORLDWIDE 100 1 Order Now
Farnell Element14 EUROPE 1294 1 Order Now

Distributor reported inventory date: 2019-05-24

Distributor Name

DIGIKEY

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4825

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1294

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-24

Unit Price (US$)

1.074

Package

Flip Chip 20

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-

(max)

-

ECCN (US)

EAR99

Country of Origin

CHINA

STBB2J29-R

Marketing Status

Active

Quantity

1000

Unit Price (US$)

1.074*

Distributor availability ofSTBB2J29-R

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 5000 0 Order Now

Distributor reported inventory date: 2019-05-24

Distributor Name

AVNET

Stock

5000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2019-05-24

Unit Price (US$)

1.074

Package

Flip Chip 20

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

85

ECCN (US)

EAR99

Country of Origin

-

STBB2J30-R

Marketing Status

Active

Quantity

1000

Unit Price (US$)

1.074*

Distributor availability ofSTBB2J30-R

Distributor Name
Region Stock Min. Order Third party link
Farnell Element14 EUROPE 4380 1 Order Now

Distributor reported inventory date: 2019-05-24

Distributor Name

Farnell Element14

Stock

4380

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-24

Unit Price (US$)

1.074

Package

Flip Chip 20

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-

(max)

-

ECCN (US)

EAR99

Country of Origin

-

(*) 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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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS8863
      800 mA 2.5 MHz, high efficiency dual mode buck-boost DC-DC converter
      9.0
      2.21 MB
      PDF
      DS8863

      800 mA 2.5 MHz, high efficiency dual mode buck-boost DC-DC converter

Publications and Collaterals

    • Description Version Size Action
      Brochure Power management guide 10.2018
      4.42 MB
      PDF
      Switching Converters (DC-DC) – Quick Reference Guide 1.0
      481.92 KB
      PDF

      Brochure Power management guide

      Switching Converters (DC-DC) – Quick Reference Guide

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STBB2J29-R
Active
Flip Chip 20 Industrial Ecopack2
STBB2J30-R
Active
Flip Chip 20 Industrial Ecopack2
STBB2JAD-R
Active
Flip Chip 20 Industrial Ecopack2

STBB2J29-R

Package:

Flip Chip 20

Material Declaration**:

Marketing Status

Active

Package

Flip Chip 20

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STBB2J30-R

Package:

Flip Chip 20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Flip Chip 20

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STBB2JAD-R

Package:

Flip Chip 20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Flip Chip 20

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

Output Power

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A This option is required and must be a number.