AC/DC Charger/Adapter

CT5600 Datasheet

The CT5600 is a high performance Primary Side Regulation (PSR) controller with high precision CV/CC control ideal for charger applications.

In CV mode, the CT5600 adopts Multi Mode Control which uses the hybrid of AM (Amplitude Modulation) mode and (Frequency Modulation) FM mode to improve system efficiency and reliability. In CC mode, the CT5600 uses PFM control with line and load CC compensation. The CT5600 can achieve audio noise free operation and optimized dynamic response. The built-in Cable Drop Compensation (CDC) function can provide excellent CV performance.

The CT5600 integrates functions and protections of Under Voltage Lockout (UVLO), VCC over Voltage Protection (VCC OVP), Cycle-by-cycle Current Limiting (OCP), Short Load Protection (SLP), Gate Clamping, and VCC Clamping.

The CT5600 is available in SOT23-6 package.


  • Multi Mode PSR Control
  • Audio Noise Free Operation for PSR
  • Optimized Dynamic Response for PSR
  • Low Standby Power <70mW
  • ±4% CC and CV Regulation
  • Programmable Cable Drop Compensation (CDC) in PSR CV Mode
  • Built-in AC Line & Load CC Compensation
  • Build in Protections
    • Short Load Protection (SLP)
    • On-Chip Thermal Shutdown (OTP)
    • Cycle-by-Cycle Current Limiting (OCP)
    • Leading Edge Blanking (LEB)
    • Pin Floating Protection
    • VDD OVP & UVP & Clamp