Specifications
| Type | Description |
|---|---|
| Part Number | BQ25601 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Component Type | Power_IC |
| Package Case | 24-pin WQFN, 4.00 mm x 4.00 mm x 0.75 mm |
| Battery Charger Topology | Synchronous switch-mode buck charger; condition: 1-cell Li-ion and Li-polymer batteries |
| Maximum Charge Current | 3 A; condition: battery charge management |
| Switching Frequency | 1.5 MHz; condition: buck charger operation |
| Charge Efficiency | 92%; condition: 2-A charge current from 5-V input |
| Input Voltage Range | 3.9 V to 13.5 V; condition: USB input and high voltage adapters |
| Input Absolute Maximum Voltage Rating | 22 V; condition: input voltage rating |
| Programmable Input Current Limit | 100 mA to 3.2 A; condition: IINDPM, 100-mA resolution |
| Input Current Limit Resolution | 100 mA; condition: IINDPM programming |
| Input Voltage Limit | Up to 5.4 V; condition: VINDPM maximum power tracking |
| Boost Converter Output Current | Up to 1.2 A; condition: USB OTG operation |
| Boost Efficiency | 92%; condition: 1-A output |
| OTG VBUS Output Voltage | 5.15 V; condition: USB On-The-Go operation |
| OTG Capacitive Load Soft-Start | Up to 500 uF; condition: boost converter soft-start |
| Battery Discharge MOSFET Impedance | 19.5 mOhm; condition: battery discharge path |
| Minimum System Voltage | 3.5 V; condition: NVDC power path management, programmable |
| Charge Voltage Regulation Accuracy | +/-0.5%; condition: battery charge voltage regulation |
| Charge Current Regulation Accuracy | +/-5%; condition: 1.5-A charge current |
| Thermal Regulation Threshold | 110 degC; condition: junction temperature threshold, programmable |
| Programmable Charge Voltage Range | 3.856 V to 4.624 V; condition: BQ25601 device comparison table |
| Charge Voltage Step Size | 32 mV per step; condition: BQ25601 programmable charge voltage |
| D+/D- USB Detection | No; condition: BQ25601 device comparison table |
| Default Charge Current | 2.04 A; condition: default ICHG for BQ25601 |
| Default AC Overvoltage Threshold | 6.4 V; condition: default VACOV for BQ25601 |
| VBUS OVP Reaction Time | 200 ns; condition: BQ25601 device comparison table |
| Battery Remote Sensing | No; condition: with open/short detection, BQ25601 |
| TS Profile | JEITA with fixed temperature thresholds; condition: BQ25601 temperature sensing profile |
| TS Ignore Bit | No; condition: BQ25601 device comparison table |
| Charge Safety Timer | 5 hr or 10 hr; condition: 10 hr default, BQ25601 |
| QON Firing With Adapter Present | No; condition: BQ25601 device comparison table |
| Charge Termination Deglitch Time | 250 ms; condition: BQ25601 device comparison table |
| Package | WQFN (24); condition: device information table |
| Package Body Size | 4.00 mm x 4.00 mm; condition: nominal body size |
| Package Thickness | 0.75 mm; condition: thin WQFN package |
| BAT Pin Capacitor Recommendation | 10 uF; condition: connect close to BAT pin |
| Bootstrap Capacitor Recommendation | 0.047 uF; condition: connect from SW to BTST |
| INT Pullup Resistor Recommendation | 10 kOhm; condition: connect INT to logic rail |
| INT Pulse Width | 256 us; condition: active-low interrupt pulse for charger status and fault |
| Charge Enable Polarity | Active low; condition: CE pin driven low enables battery charging |
| Datasheet Status | request_only |
Product Overview
The BQ25601 is a Texas Instruments Power_Management Power IC for 1-cell Li-ion and Li-polymer battery charging. It implements a synchronous switch-mode buck charger with up to 3 A battery charge management, 1.5 MHz switching frequency, and 92% charge efficiency at 2 A from a 5 V input.
Input management covers USB input and high voltage adapters with a 3.9 V to 13.5 V operating input range and 22 V input absolute maximum voltage rating. The IINDPM input current limit is programmable from 100 mA to 3.2 A in 100 mA steps, while VINDPM maximum power tracking supports an input voltage limit up to 5.4 V.
The device also provides USB OTG boost operation with 5.15 V VBUS output, up to 1.2 A output current, 92% boost efficiency at 1 A, and soft-start for capacitive loads up to 500 uF. It is supplied in a 24-pin WQFN package with 4.00 mm x 4.00 mm body size and 0.75 mm thickness. Assembly-related recommendations include a 10 uF BAT capacitor close to the BAT pin, a 0.047 uF bootstrap capacitor from SW to BTST, and a 10 kOhm INT pullup resistor.
Key Features
- Synchronous switch-mode buck charger for 1-cell Li-ion batteries
- Supports up to 3 A battery charge current
- 1.5 MHz switching frequency for buck charger operation
- 92% charge efficiency at 2 A from 5 V input
- 3.9 V to 13.5 V input voltage range
- Programmable 100 mA to 3.2 A input current limit
- USB OTG boost output up to 1.2 A
- 5.15 V VBUS output during OTG operation
- Programmable charge voltage from 3.856 V to 4.624 V
- JEITA TS profile with fixed temperature thresholds
- Active-low CE pin enables battery charging
- 24-pin WQFN package with 0.75 mm thickness
Typical Applications
- 1-cell Li-ion battery charging
- 1-cell Li-polymer battery charging
- USB input charger designs
- High voltage adapter charging
- USB On-The-Go power output
- NVDC power path systems
- Battery charger status interrupt designs
Procurement Notes
When requesting a quote for BQ25601, 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 BQ25601 charger support?
The BQ25601 uses a synchronous switch-mode buck charger topology for 1-cell Li-ion and Li-polymer batteries. Its programmable charge voltage range is 3.856 V to 4.624 V with 32 mV step size.
What are the BQ25601 input voltage and current limits?
The BQ25601 supports a 3.9 V to 13.5 V input voltage range for USB input and high voltage adapters. Its programmable IINDPM input current limit spans 100 mA to 3.2 A with 100 mA resolution.
Does the BQ25601 support USB OTG boost operation?
Yes. In USB OTG operation, the BQ25601 provides a 5.15 V VBUS output, supports boost converter output current up to 1.2 A, and reaches 92% boost efficiency at a 1 A output condition.
What package is used for the BQ25601?
The BQ25601 is supplied in a WQFN 24-pin package. The nominal body size is 4.00 mm x 4.00 mm, and the listed package thickness is 0.75 mm.
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.