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1.75V to 4.5V, 10mA 1ch Synchronous Boost DC/DC Converter - BU33DV5G

The BU33DV5G devices provide a power supply solution for products powered by either two-cell alkaline, NiCd or NiMH, or one-cell Li-ion or Li-polymer battery. Output currents can go as high as 10mA while using two alkaline, and discharge it down to 1.8 V. The boost converter is based on a fixed frequency, Pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. The maximum peak current in the boost switch is typically limited to a value of 10 mA. BU33DV5G output voltage is fixed by an internal resistor divider. The device is packaged in a 5-pin small SSOP5 package.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Status
Package
Unit Quantity
Minimum Package Quantity
Packing Type
RoHS
BU33DV5G-GTR Active SSOP5 3000 3000 Taping Yes
 
Specifications:
Grade Standard
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Boost
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 1.75
Vin1(Max.)[V] 4.5
Vout1(Min.)[V] 3.3
Vout1(Max.)[V] 3.3
Iout1(Max.)[A] 0.01
SW frequency(Max.)[MHz] 0.1
Light Load mode No
EN No
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
Features:
  • ・ Synchronous Boost DC/DC Converter(PWM)
    10mA @Vout=3.3V, Vin=1.8V
    ・ UVLO-detect Voltage:1.65V(Typ.)
    ・ UVLO-release Voltage:1.75V(Typ.)
    ・ Thermal Shutdown
 
 
Technical Data
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

Application Note

Calculation of Power Loss (Synchronous)

Application Note

Considerations for Power Inductors Used for Buck Converters

Application Note

Snubber Circuit for Buck Converter IC

Application Note

Efficiency of Buck Converter

Application Note

Buck DC/DC Converter Recommended Inductor List