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STBB3J Datasheet High Efficiency Single Inductor Buck-boost DC-dc Converter

Manufacturer: STMicroelectronics

Overview: STBB3J 2 A, high efficiency single inductor buck-boost DC-DC converter Datasheet - production data Flip Chip 20, pitch = 0.

General Description

The STBB3J is a fixed frequency, high efficiency, buck-boost DC-DC converter which provides output voltages from 1.2 V to 5.5 V starting from input voltage from 1.8 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 cell lithium-Ion applications where the output voltage is within the battery voltage range.

The low-RDS(on) N-channel and Pchannel MOSFET switches are integrated and contribute to achieve high efficiency.

Key Features

  • Input voltage range from 1.8 V to 5.5 V.
  • 2 A output current at 3.3 V in buck mode (VIN = 3.6 V to 5.5 V).
  • 800 mA output current at 3.3 V in boost mode (VIN 2.0 V).
  • Typical efficiency higher than 94%.
  • ± 2% DC feedback voltage tolerance.
  • Automatic transition between step-down and boost mode.
  • Adjustable output voltage from 1.2 V to 5.5 V.
  • Power save mode (PS) at light load.
  • 2.0 MHz fixed switching frequency.

STBB3J Distributor