IC manufacturers ROHM

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ROHM BD70522GUL

Ultra Low Iq Buck Converter For Low Power Applications

Overview

TopologyBuck Converter
Input voltage2.8-5.5 V
Output 12.8 V / 0.5 A
IC revision004

Description

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.

Features

  • Nano EnergyTM
  • 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

Typical applications

  • Thermostat
  • Energy Harvesting
  • Low-Iq Applications without Standby Switcher
  • Portable Devices/ Wearable Devices
  • Smoke Detector

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT1
(A)
ISAT2
(A)
RDC max.
(mΩ)
fres
(MHz)
Version Samples
74479275222SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

8 files Active i| Production is active. Expected lifetime: >10 years.WE-PMCI Power Molded Chip Inductor 2.2 2.1 1.2 2.4 190 45 Standard
Order Code Data­sheet Simu­lation
74479275222SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT1
(A)
ISAT2
(A)
RDC max.
(mΩ)
fres
(MHz)
Version Samples