BD70522GUL Buck Converter

ROHM Semiconductor's BD70522GUL is an ultra-low Iq buck converter for low power applications

Image of ROHM Semiconductors' BD70522GUL Buck ConverterROHM Semiconductor's SBD70522GUL is a buck converter featuring 180 nA quiescent current and supports output current up to 500 mA. The constant ON-time (COT) control with ultra-low power (ULP) mode provides superior transient response and extends battery life by providing excellent light load efficiency below 10 μA load range. The output voltage can be selected from nine 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.

Features Key Specifications
  • Nano Energy™
  • Up to 90% efficiency at 10 μA output current
  • Nine selectable output voltages (1.2 V, 1.5 V, 1.8 V, 2 V, 2.5 V, 2.8 V, 3 V, 3.2 V, 3.3 V)
  • Power good output
  • 100% ON mode for low input voltage
  • Discharge function on VOUT
  • Package: VCSP50L1C 176 mm x 1.56 mm x 0.57 mm
  • Input voltage range: 2.5 V to 5.5 V
  • Output voltage range: 1.2 V to 3.3 V
  • Maximum output current: 500 mA
  • Operating quiescent current: 180 nA (typ.)
  • Standby current: 50 nA (typ.)
  • Operating temperature range: -40°C to +85°C
Applications
  • Smoke detectors
  • Thermostats
  • Portable devices
  • Wearable devices
  • Low IQ applications without standby switcher
  • Energy harvesting

BD70522GUL Buck Converter

ImageManufacturer Part NumberDescriptionFunctionOutput ConfigurationTopologyAvailable QuantityView Details
BD70522GUL-E2 datasheet linkULTRA LOW IQ BUCK CONVERTER FORBD70522GUL-E2ULTRA LOW IQ BUCK CONVERTER FORStep-DownPositiveBuck2206 - Immediate
BD70522GUL-E2 product page link

BD70522GUL Eval Board

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
BD70522GUL-EVK-101 datasheet linkEVAL BOARD FOR THE BD70522GULBD70522GUL-EVK-101EVAL BOARD FOR THE BD70522GUL12 - Immediate
BD70522GUL-EVK-101 product page link
Published: 2018-03-05