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Step-down Switching regulators with Built-in Power MOSFET - BU90002GWZ

The BU9000xGWZ are a high efficiency 6MHz synchronous step-down switching regulator with ultra low current PFM mode. It provides up to 1.0A load current and an input voltage range from 3.0V to 5.5V, optimized for battery powered portable applications. BU9000xGWZ has a mode control pin that allows the user to select Forced PWM(Pulse Width Modulation)mode or PFM(Pulse Frequency Modulation) and PWM auto change mode utilized power save operation at light load current.

Part Number Status Datasheet Package Unit Quantity Minimum Package Quantity Packing Type Constitution Materials List RoHS Distribution Inventory
BU90002GWZ-E2 Active Datasheet UCSP35L1 3000 3000 Taping inquiry Yes Buy Sample
Technical Data
Part Explanation

 For ICs

Application Note

 Capacitor Calculation for Buck converter IC

Application Note

 Inductor Calculation for Buck converter IC

Application Note

 Resistor Value Table to set Output Voltage of Buck Converter IC

Application Note

 Thermal Resistance

Application Note

 PCB Layout Techniques of Buck Converter

Application Note

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

Specifications:   Features:   Pin Configuration:
Grade Standard
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 4.0
Vin1(Max.)[V] 5.5
Vout1(Min.)[V] 3.3
Vout1(Max.)[V] 3.3
Iout1(Max.)[A] 1.0
SW frequency(Max.)[MHz] 6.6
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  • ・Fast transient response
    ・Automatic PFM/PWM operation
    ・Forced PWM operation
    ・Internal Soft Start
    ・Under voltage lockout
    ・Over current protection
    ・Thermal shutdown
  • N/A
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