Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Device type | Step-down Li-ion battery charger |
| Battery packs | 2-cell or 3-cell series |
| Charge current | Up to 2 A programmable |
| Switching frequency | 600 kHz |
| Battery-voltage accuracy | ±0.75% class |
| Integrated power MOSFET | 0.2 Ω class |
| Efficiency | Up to 90% class |
| Protection | Current limit, thermal shutdown, battery temperature |
| Package | QFN-16, 4 × 4 mm |
| Product status | Active |
Product Overview
MP26123DR-LF-Z is an active MPS 600 kHz buck charger for two- or three-series-cell Li-ion battery packs. It uses peak-current-mode control and an external current-sense resistor to set charge current up to 2 A, while separate loops regulate charge current and final battery voltage.
The device also integrates preconditioning, status indication, programmable timer, cycle-by-cycle overcurrent protection and battery-temperature monitoring.
Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| Cells | 2S or 3S Li-ion / Li-polymer |
| Charge current | Up to 2 A |
| Switching frequency | 600 kHz |
| Battery-voltage accuracy | ±0.75% |
| Integrated MOSFET | 0.2 Ω class |
| Efficiency | Up to 90% |
| Input range class | Up to 24 V operating family |
| Protections | OCP, thermal, NTC battery monitor |
| Package | QFN-16, 4 × 4 mm |
Charger Design Considerations
Input voltage must stay sufficiently above the multi-cell battery voltage for buck charging. Inductor, sense resistor and thermal layout determine practical 2 A performance and should be selected from the exact battery-series configuration.
Manufacturer Resource
Quality & Verification Support
Exact DR-LF-Z reel code, QFN-16 package, marking and lot/date information can be reviewed before shipment.
Request a Quote
Request MP26123DR-LF-Z exactly and include quantity, date-code and traceability requirements.
