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2,7 V bis 5,5 V Eingangsleistung, 3 A Synchron-Inverswandler DC/DC-Wandler mit Integriertem Einzel-MOSFET - BD9B331GWZ

ROHM's hoch effizienter Schaltregler BD9B331GWZ ist ein Abwärtswandler, der für Niederspannung von 0,6 bis 3,3 Volt bei 2,7 bis 5,5 Volt Schaltkreisen gemacht wurde. Hocheffizient in allen Lastspektren dank automatischer PFM/PWM Anpassung. Mit On-Time-Kontrollsystem, um schnelleren Einschwingvorgang bei plötzlicher Lastveränderung zu ermöglichen.

* Dieses Produkt entspricht der STANDARD-Güte und wird nicht für Fahrzeugteile empfohlen.
Teilenummer
Status
Gehäuse
Einheitenmenge
Minimale Gehäusemenge
Gehäusetyp
RoHS
BD9B331GWZ-E2 Active UCSP30L1 3000 3000 Taping Ja
 
Spezifikationen:
Grade Standard
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 2.7
Vin1(Max.)[V] 5.5
Vout1(Min.)[V] 0.6
Vout1(Max.)[V] 4.4
Iout1(Max.)[A] 3.0
SW frequency(Max.)[MHz] 1.3
Light Load mode Yes
EN Yes
PGOOD Yes
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
Eigenschaften:
    • Schnelles Einschwingverhalten durch Steuerung der Einschaltzeit.
    • Hohe Effizienz für alle Lastbereiche mit Synchrongleichrichtern (Nch/Nch FET) und adaptivem PFM/PWM-System.
    • Einstellbare Soft-Start-Funktion.
    • Thermischer-Schutz und UVLO-Schutz.
    • Kurzschlussschutz durch Impulszählung
    • Abschaltfunktion.
 
 
IN VERBINDUNG STEHENDE PRODUKT
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Technische Daten
Capacitor Calculation for Buck converter IC

This application note explains the calculation of external capacitor value for buck converter IC circuit.

Inductor Calculation for Buck converter IC

This application note covers the steps required in choosing the inductor and to calculate the value used in buck regulator IC circuits.

Resistor Value Table to set Output Voltage of Buck Converter IC

This Application Note offers reference table to easily set resistor values for output voltage with various internal reference voltages VREF.

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

PCB Layout Techniques of Buck Converter

Major problems that arise from in appropriate layout may cause increase in noise superposed by output and switching signal, the deterioration of regulator, and also lack of stability...

The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit

Using unmatched MLCC may not obtain required target characteristics for power supply circuit and may cause abnormal operation. This application note explains the important points while using MLCC.

Calculation of Power Loss (Synchronous)

This application note describes how to obtain the power loss required to calculate the temperature of a semiconductor device. Temperature control is important to ensuring product reliability.

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Considerations for Power Inductors Used for Buck Converters

This application note explains the features and things to consider when shopping for power inductors.

Snubber Circuit for Buck Converter IC

In buck converter ICs, many high-frequency noises are generated at switch nodes. A snubber circuit provides one way of eliminating such harmonic noise. This application note explains how to set up the RC snubber circuits.

Efficiency of Buck Converter

This application note explains power loss factors and methods for calculating them. It also explains how the relative importance of power loss factors depends on the specifications of the switching power source.

Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)

This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.