Diodes Menu Close
Diodes Pericom: A product line of Diodes Incorporated


The AP4370 is a decoding IC compatible to Qualcomm High Voltage Dedicated Charging Port (HVDCP) Quick Charge (QC) 2.0 protocol. It decodes the different combinations of D+/D- signals, generated by the portable device, into the related configurations of V1/V2, which can be used to change either voltage reference or voltage feedback divider resister for the controller IC to make the further constant voltage/constant current control. The AP4370 has over voltage discharge feature to accelerate output voltage decline transition. The AP4370 automatically provides 5V output configuration for the connected portable device that is not compatible to Qualcomm QC 2.0 protocol.

The AP4370 is packaged in TSOT26 and SOT26 packages.


  • Chargers 
  • Adapters
  • Power Supplies
  • AC-DC


  • Compatible to Qualcomm HVDCP Quick Charge 2.0 Protocol
  • Class A: 5V/9V/12V
  • Ultra Low Static Current: 80μA at 5V VCC
  • Wide VCC Supply Voltage: 4.5V to 15V
  • Over Voltage Discharge Feature to Accelerate Output Voltage
  • Decline Transition
  • Small Profile: TSOT26/SOT26 SMD Package in Accordance with
  • Level 3 of IPC/JEDEC J-STD-033A
  • Totally Lead-free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device

Product Specifications

Product Parameters

VCC Max 25 V
Operating Current 90 µA
Protocol Compatible QC2.0
Voltage Sense Reference N/A
Current Sense Reference N/A
UVLO 3.6 V

Related Content

SOT26 (SC74R)


Quality & Reliability

Technical Documents

Recommended Soldering Techniques
Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
AP4370KTR-G1 Mouser Electronics Inc. 1232 7/23/2019 Buy Now Americas
AP4370KTR-G1 Digi-Key Electronics 2206 7/22/2019 Buy Now Americas


Product Change Notices

PCN # Issue Date Subject
PCN-2246 2017-28-06 Additional Qualified Assembly/Test (A/T) Site – Chengdu A/T (CAT) with Part Marking Update