Specifications
| Type | Description |
|---|---|
| Part Number | BQ25798 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | 29-pin VQFN-HR/QFN, 4.00 mm x 4.00 mm |
| Battery Configuration | 1-4 cell Li-ion/Li-polymer |
| Charge Current | 5 A |
| Input Voltage Range | 3.6 V to 24 V |
| USB OTG Output | 2.8 V to 22 V |
| Interface | I2C |
| MPPT Input | Yes |
| Ship Mode Current | 10 µA |
| Switching Frequency | 500 kHz to 3 MHz |
| Datasheet Status | request_only |
Product Overview
The BQ25798 is a TI buck-boost battery charger for 1-4 cell Li-ion/Li-polymer with NVDC power path. It supports 3.6-24 V input range, 5 A charge, USB OTG 2.8-22 V output. Features include I2C, MPPT, 10 µA ship mode, and programmable 120°C thermal regulation. Package: 29-pin VQFN-HR 4x4 mm.
Key Features
- Buck-boost charger 1-4 cell Li-ion
- 5 A charge current
- 3.6-24 V input
- USB OTG 2.8-22 V
- I2C interface
- MPPT for solar
- 10 µA ship mode
- NVDC power path
- 29-pin VQFN-HR 4x4 mm
Typical Applications
- 1-4 cell Li-ion/Polymer charging
- USB OTG power
- Solar MPPT charging
- NVDC power path systems
Procurement Notes
When requesting a quote for BQ25798, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What battery configuration?
1-4 cell Li-ion/Li-polymer, BAT range 0-18.8 V.
What charge current?
5 A maximum.
What USB OTG output?
2.8-22 V, 10 mV resolution.
What package?
29-pin VQFN-HR 4.00 mm x 4.00 mm.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 19, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.