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Texas Instruments BQ24003RGWR — Power Management (PMIC / Gate Driver)

BQ24003RGWR Li-Ion Charger IC, 1.2A, 4.2V, 20-VQFN, Obsolete

MPNBQ24003RGWR
Obsolete

Texas Instruments BQ24003RGWR, single-cell Li-Ion linear charger IC, 1.2A max charge current, 4.2V battery pack voltage, Constant-Current charge, programmable Current and Timer, Over Temperature protection, 20-VQFN Exposed Pad, -40°C to 70°C.

$50.4500Ref. price · indicative, final on quote
Texas Instruments BQ24003RGWR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BQ24003RGWR specifications
ParameterValue
MountingSurface Mount
Battery pack voltage4.2V
Supply voltage10V
Current - chargingConstant
Charge current - max1.2A
Operating temperature-40°C~70°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case20-VQFN Exposed Pad
Number of cells1
Fault protectionOver Temperature
Battery chemistryLithium Ion
Programmable featuresCurrent, Timer

Product details

1.2A Li-Ion linear charger in a 20-VQFN

The Texas Instruments BQ24003RGWR is a single-cell linear charger IC for Lithium Ion batteries, delivering a constant charge current up to 1.2A to a 4.2V battery pack. It integrates over-temperature fault protection and offers programmable charge current and charge timer via external components.

The BQ24003RGWR is listed as Obsolete in the lifecycle record.

Charge profile and supply rail limits

The charger operates from a supply voltage up to 10V maximum, which covers standard 5V USB or wall-adapter inputs with margin. The constant-current charge algorithm is fixed — no PWM or switching stage — so thermal dissipation at 1.2A charge current must be managed via the exposed pad and PCB copper area. The programmable timer provides a safety backup to terminate charging if the battery does not reach full voltage within the set window.

Frequently asked questions

Where can I buy BQ24003RGWR?

No stock-holding or immediacy claim is made.