Specifications
| Type | Description |
|---|---|
| Part Number | BQ25890 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Component Type | Power_IC |
| Package / Case | WQFN (24), 4.00 mm x 4.00 mm nominal body size |
| Battery Chemistry | Single-cell Li-Ion and Li-polymer |
| Maximum Charge Current | 5 A |
| Switching Frequency | 1.5 MHz |
| Charge Efficiency at 2 A | 93% |
| Charge Efficiency at 3 A | 91% |
| Optimized Input Voltage Range | 9 V to 12 V |
| Input Voltage Range | 3.9 V to 14 V |
| Input Current Limit Range | 100 mA to 3.25 A |
| Input Current Limit Resolution | 50 mA |
| Maximum Power Tracking Input Voltage Limit | Up to 14 V |
| USB OTG Output Voltage Range | 4.5 V to 5.5 V |
| Boost Converter Switching Frequency | 500 kHz or 1.5 MHz |
| Boost Output Current | Up to 2.4 A |
| Boost Efficiency | 93% at 5 V output, 1 A output current |
| Battery Discharge MOSFET Resistance | 11 mΩ |
| Battery Discharge Current Capability | Up to 9 A |
| Ship Mode Battery Leakage Current | 12 µA |
| Charge Voltage Regulation Accuracy | ±0.5% |
| Charge Current Regulation Accuracy | ±5% |
| Input Current Regulation Accuracy | ±7.5% |
| Input Adapter Detection | USB SDP, CDP, DCP, and non-standard adapters |
| System Voltage Range | 3.5 V to 4.5 V |
| Typical Input Capability | 3 A |
| Integrated Monitor | ADC for voltage, temperature, and charge current |
| Integrated Power FETs | RBFET Q1, HSFET Q2, LSFET Q3, BATFET Q4 |
| Datasheet Status | request_only |
Product Overview
The BQ25890 is a Texas Instruments single-cell fast charger Power IC for Li-Ion and Li-polymer battery charge management. Its switch-mode buck charger supports up to 5 A charge current with 1.5 MHz switching operation. Charge efficiency is specified as 93% at 2 A charge current and 91% at 3 A charge current, with charge voltage regulation accuracy of ±0.5% and charge current regulation accuracy of ±5%.
Input support covers USB and adjustable high-voltage adapters across a 3.9 V to 14 V input range. The high-voltage fast-charging range is optimized for 9 V to 12 V operation, with programmable input current limiting from 100 mA to 3.25 A in 50 mA steps. Built-in adapter detection supports USB SDP, CDP, DCP, and non-standard adapters.
The device also supports USB On-the-Go boost operation with adjustable VBUS output from 4.5 V to 5.5 V, selectable 500 kHz or 1.5 MHz boost switching frequency, and up to 2.4 A boost output current. It is supplied in a 24-pin WQFN package with a 4.00 mm x 4.00 mm nominal body size.
Key Features
- Single-cell Li-Ion and Li-polymer charge management
- 5 A switch-mode buck charge capability
- 1.5 MHz buck charger switching frequency
- 93% efficiency at 2 A charge current
- 3.9 V to 14 V single input range
- 9 V to 12 V optimized fast-charge input
- 100 mA to 3.25 A input current limit
- 50 mA input current limit resolution
- 4.5 V to 5.5 V USB OTG output
- Up to 2.4 A USB OTG boost current
- 12 µA battery leakage in Ship Mode
- Integrated ADC monitors voltage, temperature, and charge current
Typical Applications
- Single-cell Li-Ion battery charging
- Li-polymer battery charging
- USB adapter powered systems
- High-voltage adapter fast charging
- USB On-the-Go power output
- Power-path managed battery systems
- Ship-mode battery leakage reduction
Procurement Notes
When requesting a quote for BQ25890, 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 chemistry does the BQ25890 support?
The BQ25890 is specified for single-cell Li-Ion and Li-polymer battery charge management applications. It is described as a single-cell fast charger in the Power_Management category.
What charge current can the BQ25890 provide?
The BQ25890 supports switch-mode buck charging up to 5 A. Its buck charger operates at 1.5 MHz, with stated charge efficiency of 93% at 2 A and 91% at 3 A.
What input voltage range is supported by BQ25890?
The device supports a 3.9 V to 14 V input range for USB and adjustable high-voltage adapters. Its optimized high-voltage fast-charge input range is 9 V to 12 V.
Does the BQ25890 support USB OTG boost output?
Yes. In USB On-the-Go boost mode, the BQ25890 provides an adjustable VBUS output from 4.5 V to 5.5 V, selectable 500 kHz or 1.5 MHz boost switching, and output current up to 2.4 A.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 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.