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STMicroelectronics STC4054GR — Analog & Data Acquisition

STC4054GR Li-Ion charger IC, 800mA, TSOT-23-5

MPNSTC4054GR
End of Life

STMicroelectronics STC4054GR Li-Ion battery charger IC, 1-cell, 800mA max charge current, TSOT-23-5 package, Tape & Reel.

$2.01Ref. price · indicative, final on quote
STMicroelectronics STC4054GR datasheet (PDF)
PackagingSOT-23-5 Thin, TSOT-23-5
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STC4054GR specifications
ParameterValue
MountingSurface Mount
Battery pack voltage4.2V
Supply voltage6.5V
Current - chargingConstant - Programmable
Charge current - max800mA
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
CaseSOT-23-5 Thin, TSOT-23-5
Number of cells1
Battery chemistryLithium Ion
Programmable featuresCurrent

Product details

800 mA charge current, 4.2 V termination

The STC4054GR: This single-cell Li-Ion linear charger delivers a programmable constant current up to 800 mA, terminating at a 4.2 V battery pack voltage. The charge current is set with an external resistor — no I2C or firmware needed, which simplifies the BOM for a dedicated charging rail. The TSOT-23-5 package (2.9 mm × 2.8 mm) keeps the footprint small enough for wearable or portable designs where board area is tight.

Surface-mount in a TSOT-23-5 package — the same 5-pin footprint as many other linear chargers, so a layout swap to a pin-compatible alternative is possible without a board spin.

Frequently asked questions

Will STC4054GR drop into a board that was specified around STBC08PMR without rewiring?

Both parts are single-cell Li-Ion linear chargers in the same TSOT-23-5 package with programmable current and a 4.2 V termination voltage. The pinout and function are close enough that the STC4054GR is a viable functional second-source without a board spin, but confirm the external resistor value for the target charge current.