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STBB1-APUR33 Datasheet 1a High Efficiency Single Inductor Dual Mode Buck-boost DC-dc Converter

Manufacturer: STMicroelectronics

Overview: STBB1-AXX 1 A, high efficiency single inductor dual mode buck-boost DC-DC.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The STBB1-A 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 Table 1.

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% 1 A output current capability Shutdown current < 1 µA Available in DFN10 (3 x 3 mm) integrated low-RDSon N-channel and P-channel MOSFET switches contribute to its high efficiency. The MODE pin al.

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