I2C NVDC 1 to 5 cell, 16-A buck-boost battery charge controller evaluation module


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The BQ25730EVM evaluation module (EVM) is an I2C controlled NVDC (narrow voltage DC) buck boost charge controller with N-channel MOSFET selector and current monitoring. The input voltage range, for the buck converter, is between 3.5 V and 26 V, with a programmable output of 1 to 5 cells and a charge output current range of 128 mA to 15 A. This EVM doesn’t include the EV2400 interface device; this will have to be ordered separately to evaluate the BQ25730EVM.

  • Host-controlled NVDC 1S to 5S battery buck boost charger with 3.5-V to 26-V input; 1-V to 23-V charging output and 3-V to 24-V OTG output.
  • Supports USB 2.0, USB 3.0, USB 3.1 ( USB Type-C™) and USB_PD platforms
  • Supports 5-mΩ current sense for high current, high efficiency
  • Support 400-kHz or 800-kHz switching frequency for high efficiency
  • Patented switching frequency dithering pattern for meeting IEC-CISPR 32 EMI specification
  • Flexible power path or non-power path option

Does not include EV2400

Battery charger ICs
BQ25730 I²C 1-5 cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG


Linear & low-dropout (LDO) regulators
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Evaluation board

BQ25730EVM — I2C NVDC 1 to 5 cell, 16-A buck-boost battery charge controller evaluation module

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Technical documentation

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Type Title Date
* EVM User's guide BQ2573x Evaluation Module (Rev. A) PDF | HTML 19 Jan 2021
Certificate BQ25730EVM EU RoHS Declaration of Conformity (DoC) 16 Feb 2021

Related design resources

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BQSTUDIO Battery Management Studio (bqStudio) Software

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