BD70522GUL Ultra-Low Iq Buck Converter Evaluation Board

Topology: Buck
Input Voltage (min.): 2.50 V
Input Voltage (max.): 5.50 V
Output 1: 3.30 V / 0.500 A

Original publication on 2017-11-17, revision 001


The BD70522GUL is a Buck Converter featuring 180nA quiescent current and supports output current up to 500mA. The Constant ON-Time (COT) control with ULP (Ultra Low Power) mode provides superior transient response and extends battery life by providing excellent light load efficiency below 10μA load range. The output voltage can be selected from 9 pre-set voltages by VSEL pins. When the input voltage gets close to the output voltage, the IC enters 100%ON mode where the switching operation stops.


  • Nano Energy™
  • 180nA (Typ) Quiescent Current
  • Up to 90% Efficiency at 10μA Output Current
  • Up to 500mA Output Current
  • 9 Selectable Output Voltages (1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V, 3.2V, 3.3V)
  • Power Good Output
  • 100%ON Mode for Low Input Voltage
  • Discharge Function on VOUT.


  Order Code SPEC Product series Pins Reihen Gender Typ IR
Verpackung Samples
61300311121 PDF WR-PHD 2.54 mm THT Pin Header 3 Single Pin Header Straight 3 Bag