STBB2 - 800 mA 2.5 MHz high efficiency dual mode buck-boost DC-DC converter

Datasheet Summary

Description

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.

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.

STMicroelectronics

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Datasheet Details

Part number	STBB2
Manufacturer	STMicroelectronics
File Size	1.73 MB
Description	800 mA 2.5 MHz high efficiency dual mode buck-boost DC-DC converter
Datasheet	STBB2 Datasheet
Additional preview pages of the STBB2 datasheet.

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Full PDF Text Transcription

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STBB2 800 mA 2.5 MHz, high efficiency dual mode buck-boost DC-DC converter Datasheet - production data • Cellular phones Description 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.

Published: May 8, 2014 |