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BD83070GWL-EVK-001: 2.5V/3.3V @ 1A, 2 ~ 5.5V in

Summary

The BD83070GWL converter is a power supply solution designed for battery powered devices. It can operate at pulse frequency modulation (PFM) to suppress loss and current consumption during light load which has 2.8μA quiescent current at no load. Capable to support up to 1A output on pulse width modulation (PWM) and provides high efficiency for heavy load. It is possible to disable auto-PFM/PWM mode by via MODE pin. User can select from 2 preset output voltage via VSEL pin and it changes between buck and boost operations depending on the relation between input voltage and output voltage.

The BD83070GWL is a synchronous buck-boost DC/DC convertor providing 3.3 V or 2.5 V output from single-cell Li-ion battery or other input between 2.0 V and 5.5 V. It has the capability to support up to 1 A output over input voltage range of 2.7 V to 5.5 V. It seamlessly changes between buck and boost operations depending on the input voltage.

Specifications

Manufacturer Rohm Semiconductor
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number 846-BD83070GWL-EVK-001-ND
Eval Board Supplier Rohm Semiconductor
Eval Board Normally In Stock
Topology Step Up/Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 2.5 V
3.3 V
Current Out 1 A
Voltage In 2 ~ 5.5 V
Efficiency @ Conditions >95%, 3.6V in, 3.3V @ 1 ~ 1000 mA
>95%, 3.0V in, 2.5V @ 1 ~ 400 mA
>90%, 3.6V in, 2.5V @ 100 ~ 1000 mA
>90%, 3.0V in, 3.3V @ 40 ~ 1000 mA
Voltage Out Range - Fixed
Features Over Current Protection
Over Voltage Protection
PFM or PWM
Shutdown, Enable, Standby
Thermal Protection
Switching Frequency 1.5 MHz
Standby Current [Typical] 100 nA
Quiescent Current [Typical] 2.8 µA
Component Count + Extras 5 + 18
Internal Switch Yes
Design Author Rohm
Application / Target Market Cellular Phone
Portable Devices
Tablets
Standby Current [Maximum] 1 µA
Quiescent Current [Maximum] 5.6 µA
Main I.C. Base Part BD83070
Date Created By Author 2019-06
Date Added To Library 2020-07

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