EA4528YH

ACT4528 40V/3.0A CV/CC Buck Converter Featuring QC2.0 and USB Auto-Detect FEATURES GENERAL DESCRIPTION 40V Input Voltage Surge ACT4528 is a wide input voltage, high efficiency step-down DC/DC converter that operates in either CV 4.5V-36V Operational Input Voltage (Constant Output Voltage) mode or CC (Constant 5.1V/9.1V/12.1V Output with +/-1% Accuracy Output Current) mode. ACT4528 has QC2.0 decoding Up to 3.0A Output current built in to provide 5.1V/9.1V/12.1V outputs as requested Constant Current Regulation Limit by attached portable devices. It also supports Apple QC2.0 Decoding + USB Auto-Detect 2.4A, Samsung and BC1.2 devices to charge at full Support Apple 2.4A, Samsung and BC1.2 current rate. Hiccup Mode Protection at Output Short ACT4528 has accurate output current limits under >90% Efficiency at Full Load constant current regulation to meet MFi specification. It 0.5mA Low Standby Input Current can provide up to 3.0A output current at 125kHz switching frequency. ACT4528 utilizes adaptive drive 5.7V/10.1V/13.5V Output Over-voltage Protection for technique to achieve good EMI performance while 5.1V/9.1V/12.1V Outputs main >90% efficiency at full load for mini size CLA Cord Voltage Compensation designs. ACT4528 also has output short circuit Meet EN55022 Class B Radiated EMI Standard protection with hiccup mode. The average output 8kV ESD HBM Protection on DP and DM current is reduced to below 6mA when output is shorted SOP-8EP Package to ground. Other features include output over voltage protection and thermal shutdown. APPLICATIONS ACT4528 is available in a SOP-8EP package and require very few external components for operation. Car Charger Cigarette Lighter Adaptor (CLA) Rechargeable Portable Device CV/CC regulation DC/DC converter TYPICAL APPLICATION CIRCUIT V/I PROFILE Vout C3 Rcs CSN HSB 22nF 12.1V 25m 4.5V to 40V IN SW 5V/9V/12V L1 9.1V ACT4528 47H CSP Vout C1 C2 C4 C5 C6 D- GND DP DM 47F 10F 5.1V 22F 220F 2.2F D1 D+ 3.2V SK54L GND Iout 2.65A Data Sheet Rev. C, November 2019 Subject to change without notice 1 of 15 www.qorvo.com 2020 Qorvo US, Inc. All rights reserved. ACT4528 40V/3.0A CV/CC Buck Converter Featuring QC2.0 and USB Auto-Detect ORDERING INFORMATION PART NUMBER OPERATION TEMPERATURE RANGE PACKAGE FREQUENCY PACKING ACT4528YH-T -40C to 85C SOP-8EP 125kHz TAPE & REEL PIN CONFIGURATION CSP 8 HSB 1 CSN SW 2 7 ACT4528 IN 3 6 NC GND EP DP 5 DM 4 SOP-8EP Top View Data Sheet Rev. C, November 2019 Subject to change without notice 2 of 15 www.qorvo.com 2020 Qorvo US, Inc. All rights reserved.