ACT4070B
30 V, 3.0 A Step-Down DC/DC Converter
Discontinued >
End of Life announced April 8, 2021 (PCN 21-0080).
Last Time Buy: Dec 5, 2021
Contact your local sales representative for assistance.
Key Features
- 3 A output current
- Up to 95% efficiency
- 6 to 30 V input range
- 100 µA shutdown supply current
- 4 mA standby input current
- 300 kHz switching frequency
- Output voltage up to 12 V
- Cycle-by-cycle current limit protection
- Thermal shutdown protection
- Internal soft start function
- Frequency foldback at short circuit
- Stability with wide range of capacitors (including low ESR ceramic capacitors)
Qorvo's ACT4070B is a wide input voltage step-down DC/DC converter that provides up to 3 A output current at 300 kHz switching frequency.
ACT4070B is a replacement part for ACT4070 with advanced features such as lower standby current and higher light load efficiency. ACT4070B can be dropped into ACT4070 socket with only the feedback resistance value changed.
ACT4070B's protection features include cycle-by-cycle current limit, thermal shutdown and frequency foldback at over-current and short circuit. The device is available in a SOP-8EP package and requires very few external devices for operation.
Typical Applications
- TFT LCD Monitors
- Portable DVDs
- Car-Powered or Battery-Powered Equipment
- Set-Top Boxes
- Telecom Power Supplies
- DSL and Cable Modems and Routers
Product Categories
| Topology | Step-Down |
| Input Voltage(V) | 6.5 to 30 |
| Max Output Current(A) | 3.0 |
| Frequency(kHz) | 300 |
| ActiveCharge™ with Qualcomm QC 2.0 | No |
| AEC-Q100 | No |
| Cable Compensation | No |
| Sensorless CC Control | No |
| Package Type | SOP-8EP |
| RoHS | Yes |
| Lead Free | Yes |
| Halogen Free | Yes |
| ITAR Restricted | No |
| ECCN | EAR99 |