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Texas Instruments BQ25505RGRR — Power Management (PMIC / Gate Driver)
Texas Instruments

BQ25505RGRR Energy Harvesting PMIC, 325 nA, 0.12 V–4 V

MPNBQ25505RGRR
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Texas Instruments BQ25505RGRR energy harvesting power management IC, 325 nA supply current, 0.12 V to 4 V input range, 20-VFQFN Exposed Pad, -40°C to 85°C.

$4.6700Ref. price · indicative, final on quote
BQ25505RGRR datasheet
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MOQ1 pcs
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Specifications

BQ25505RGRR Technical Specifications
ParameterValue
Mounting typeSurface Mount
Voltage0.12V ~ 4V
Current - supply325nA
Operating temperature-40°C~85°C
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsEnergy Harvesting
Case20-VFQFN Exposed Pad

Product details

325 nA quiescent — the cold-start enabler

The Texas Instruments BQ25505RGRR is a power management IC purpose-built for energy harvesting. Its headline draw is a 325 nA supply current — low enough that the chip itself does not consume the micro-watts a small solar cell or thermoelectric generator produces. The input supply range of 0.12 V to 4 V means it can cold-start from a single photovoltaic cell or a TEG module at a fraction of a volt, then boost that to a regulated output for storage or load.

Frequently asked questions

How does BQ25505 compare to BQ25504?

The BQ25504 is a close sibling in TI's energy harvesting PMIC family. The BQ25505 adds a boost charger with a programmable maximum power point tracking (MPPT) algorithm, making it better suited for systems that need to extract peak power from a varying source like a solar panel. Pin compatibility varies — check the respective datasheets for footprint differences before swapping on a board.