Qorvo's ACT4527 is a wide input voltage, high efficiency step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode.
ACT4527 has an interface for USB-PD control via a tri-state digital pin. Vout is 5.1 V if this pin is floating, Vout is 9.1 V when this pin's voltage is less than 0.8 V and Vout is 12.1 V when this pin's voltage is more than 2.0 V.
The product has accurate output current limits under constant current regulation. It provides up to 3.0 A output current at 125 kHz switching frequency. ACT4527 utilizes an adaptive drive technique to achieve good EMI performance while maintaining greater than 90% efficiency at full load for mini-size CLA designs. ACT4527 also has output short circuit protection with hiccup mode. The average output current is reduced to below 6 mA when output is shorted to ground. Other features include output over-voltage protection and thermal shutdown.
ACT4527 is available in a SOP-8EP package and requires very few external components for operation.
Topology | Step-Down |
Input Voltage(V) | 6 to 36 |
Max Output Current(A) | 3.0 |
Frequency(kHz) | 125 |
ActiveCharge™ with Qualcomm QC 2.0 | No |
AEC-Q100 | No |
Cable Compensation | Yes |
Sensorless CC Control | Yes |
Package Type | SOP-8EP |
RoHS | Yes |
Lead Free | Yes |
Halogen Free | Yes |
ITAR Restricted | No |
ECCN | EAR99 |