BD70522GUL-E2 Power Management ICs - PMIC by Rohm

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

Where to Buy

Prices starting from US$0.63

Distributor Stock
Logo for Farnell
Farnell
from US$0.79
7,298
in stock
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Logo for Avnet America
Avnet America
from US$0.69
12,000
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Newark Electronics
from US$0.89
7,298
in stock
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element14
from US$0.88
7,298
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Chip One Stop
from US$0.67
5,034
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CoreStaff
from US$0.68
2,997
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Rutronik
from US$0.63
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Future Electronics
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Avnet Asia
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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.

Specifications

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
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)

Resources





Reference Design
Reference Circuit

Schematic Design & Verification
Buck DC/DC Converter Recommended Inductor List
Calculation of Power Dissipation in Switching Circuit
Considering Input Filter to Reduce Conducted Emissions by DCDC Converter
Considering Polarity of Power Inductor to Reduce Radiated Emission of DC-DC converter
Method for Monitoring Switching Waveform
Phase Compensation Design for Current Mode Buck Converter
Bootstrap Circuit in the Buck Converter
Method for Determining Constants of Peripheral Parts of Buck DC/DC Converter
Power Supply Sequence Circuit with General Purpose Power Supply IC
Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
PCB Layout Techniques of Buck Converter
Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
Usage of SPICE Macromodel for DC/DC
Snubber Circuit for Buck Converter IC
Efficiency of Buck Converter
Calculation of Power Loss (Synchronous)
Inductor Calculation for Buck converter IC
Considerations for Power Inductors Used for Buck Converters
Capacitor Calculation for Buck converter IC
The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit
Resistor Value Table to set Output Voltage of Buck Converter IC
Importance of Probe Calibration When Measuring Power: Deskew
Impedance Characteristics of Bypass Capacitor


Manufacturing Data
Factory Information

Alternative Descriptions

Conv DC to DC Single Step Down 2.5V to 5.5V 8-Pin VCSP Emboss T/R | Avnet America
Dc/Dc Conv, Sync Buck, 1Mhz, Ufbga-9 | Newark Electronics
DC/DC CONV, SYNC BUCK, 1MHZ, UFBGA-9 | element14
DC-DC Buck 5,5V 0,5A VCSP50L1 | Rutronik
BD70522 Series 1.2 V 500 mA SMT Step-Down Buck Switching Regulator - UFBGA-9 | Future Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a BD70522GUL-E2?

Additional datasheets, footprints and schematics for BD70522GUL-E2 are listed on our Part Details page. You can also find images and similar parts to BD70522GUL-E2 on this page.

What pricing and inventory information can I view?

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What category does BD70522GUL-E2 fall under?

The BD70522GUL-E2 is listed under Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators > DC / DC Adjustable Switching Regulators.

Can I view similar or alternative parts?

You can view similar parts to BD70522GUL-E2 when available in the DC / DC Adjustable Switching Regulators range under the specifications section at the bottom of the details page.

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Submit any questions directly to the customer support team of the distributor listing the product. For the BD70522GUL-E2 you can contact the distributor directly for product support, shipping queries etc.

Is the BD70522GUL-E2 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ROHM Semiconductor.

Which authorised distributors for BD70522GUL-E2 have stock available?

Authorised distributors including Avnet America, Newark Electronics, element14, Farnell and Chip One Stop have stock available or on a lead time for BD70522GUL-E2.

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