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STBB3JCC Datasheet High Efficiency Single Inductor Buck-boost DC-dc Converter And High Brightness Wled Driver

Manufacturer: STMicroelectronics

Overview: STBB3JCC 2 A, high efficiency single inductor buck-boost DC-DC converter and high brightness WLED driver Datasheet - production data Flip Chip 20, pitch = 0.

General Description

The STBB3JCC 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.

Thanks to very low sensing voltage, only 100 mV and very low RDS(on) of integrated power MOSFET, it achieves very high efficiency driving high brightness white LED in constant current mode.

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.

Key Features

  • 100 mV feedback signal.
  • Input voltage range from 1.8 V to 5.5 V.
  • 2 A output current at 3.3 VOUT in buck mode (VIN= 3.6 V to 5.5 V).
  • 800 mA output current at 3.3 VOUT in boost mode (VIN ≥ 2.0 V).
  • Typical efficiency higher than 94%.
  • 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.
  • Adjus.

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