BU90005GWZ
Abwärtswandler-Schaltregler mit eingebautem Leistungs-MOSFET

Die BU9000xGWZ sind 6 MHz-Synchron-Abwärtsschaltregler mit hohem Wirkungsgrad mit extrem niedrigem Strom PFM-Modus. Es bietet bis zu 1,0 A Laststrom und einem Eingangsspannungsbereich von 3,0 V bis 5,5 V und ist für batteriebetriebene tragbare Anwendungen optimiert. BU9000xGWZ hat einen Modus, der Steuerstift, der dem Benutzer erlaubt, den Forced-PWM (Pulse Width Modulation) Modus oder PFM (Pulsfrequenzmodulation) und PWM Auto-Änderungsmodus bei utilisiertem Leistungssparbetrieb bei leichtem Laststrom auswählen zu können.

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Produktdetails

 
Teilenummer | BU90005GWZ-E2
Status | Empfohlen
Gehäuse | UCSP35L1
Einheitenmenge | 3000
Minimale Gehäusemenge | 3000
Gehäusetyp | Taping
RoHS | Ja

Spezifikationen:

Grade

Standard

ch

1

Integrated FET / Controller

Integrated FET

Topology

Buck

Synchronous / Nonsynchronous

Synchronous

Vin1(Min.)[V]

2.3

Vin1(Max.)[V]

5.5

Vout1(Min.)[V]

2.5

Vout1(Max.)[V]

2.5

Iout1(Max.)[A]

1.0

SW frequency(Max.)[MHz]

6.6

Light Load mode

Yes

EN

Yes

PGOOD

No

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Eigenschaften:

・Fast transient response
・Automatic PFM/PWM operation
・Forced PWM operation
・Internal Soft Start
・Under voltage lockout
・Over current protection
・Thermal shutdown

Evaluation
Board

 
    • Evaluation Board
    • BU90005GWZ-E2EVK-101
    • This evaluation board has been specifically developed to evaluate the BU90005GWZ synchronous buck DC/DC converter with integrated 250mΩ high-side Pch and 220mΩ low-side Nch MOSFETs.

  • User's Guide Buy

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Unterlagen

White Paper

  • Cutting-Edge Web Simulation Tool “ROHM Solution Simulator” Capable of Complete Circuit Verification of Power Devices and Driver ICs

User's Guide

  • Evaluation Board User's Guide

Technische Artikel

Schematic Design & Verification

  • 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
  • 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

Thermal Design

  • Notes for Temperature Measurement Using Thermocouples
  • Two-Resistor Model for Thermal Simulation
  • Notes for Temperature Measurement Using Forward Voltage of PN Junction
  • Thermal Resistance
  • Precautions When Measuring the Rear of the Package with a Thermocouple

Packaging & Qualität

Package Information

  • Package Information

Manufacturing Data

  • Factory Information

Environmental Data

  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)