BD70522GUL
Nano Energy™, Ultra Low Iq Buck Converter For Low Power Applications

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.

ROHM and NGK INSULATORS, LTD. have collaborated on the ultimate maintenance-free IoT device that combines ROHM’s Nano Energy™ ultra-low current consumption technology for power supply ICs with NGK’s chip-type ceramic rechargeable battery EnerCera®.
EnerCera® × Nano Energy™ Collaboration Page

Data Sheet Buy * Sample *
* This is a standard-grade product.
For Automotive usage, please contact Sales.
Data Sheet Buy * Sample *

Product Detail

 
Part Number | BD70522GUL-E2
Status | Recommended
Package | VCSP50L1C
Unit Quantity | 3000
Minimum Package Quantity | 3000
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Standard

ch

1

Integrated FET / Controller

Integrated FET

Topology

Buck

Synchronous / Nonsynchronous

Synchronous

Vin1(Min.)[V]

2.5

Vin1(Max.)[V]

5.5

Vout1(Min.)[V]

1.2

Vout1(Max.)[V]

3.3

Iout1(Max.)[A]

0.5

SW frequency(Max.)[MHz]

1.0

Light Load mode

No

EN

Yes

PGOOD

Yes

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Package Size [mm]

1.76x1.56 (t=0.57)

Features:

  • 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.

Evaluation
Board

 
    • Evaluation Board
    • BD70522GUL-EVK-101

    • The BD70522GUL converter is a power supply solution designed for battery powered devices. 180nAquiescent current and ULP (Ultra Low Power) mode enable excellent light load efficiency at 10µA load, extending battery life, while output currents up to 500mAare supported. Users can select from among 9 preset output voltages via the VSEL pin. And when the input voltage gets close to the output voltage, the IC enters 100% ON mode that stops switching operation.

  • User's Guide Buy
    • Reference Design
    • REFLVBMS001-EVK-001

    • This collaboration board charges the EnerCera® Pouch rechargeable battery manufactured by NGK, and outputs the power stored in the EnerCera® by stepping down and stabilizing it. The Power Supply and RESET ICs with Nano Energy™ echnology maximizes the battery life.

  • User's Guide Buy
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