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STBB1-AXX Datasheet Buck-boost DC-dc Converter

Manufacturer: STMicroelectronics

Overview: STBB1-AXX Datasheet High efficiency single inductor dual mode buck-boost DC-DC converter with 2.

General Description

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.

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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STBB1-AXX Distributor