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SY20778QYC (SY7994QYC)

Not recommended for new designs
Fully Integrated Synchronous Boost Converter with QC3.0 for Li-Ion Battery Power Bank Application
Datasheet
SY20778QYC Fully Integrated Synchronous Boost Converter with QC3.0 for Li-Ion Battery Power Bank Application Datasheet
Part number SY20778QYC
Vin (max) (V) 4.5
Vin (min) (V) 3
Absolute max Vin (max) (V)
Number of series cells Single Cell
Charge voltage (max) (V)
Charge voltage (min) (V)
Charge current (max) (A) /
Charge current (min) (A)
Integrated FETs(Yes/No)
Topology
Control interface
Features QC3.0 Compliance
Operating temperature range(°C)
Package QFN4x4-20
  • Integrated N-Channel MOSFETs with 16V Voltage Rating and Extremely Low RDS(ON) for

- Linear Switch

- Half Bridge

  • 0.3MHz or 0.5MHz Selectable Switching Frequency to Minimize Peripheral Circuit Design
  • Up to 20W Output Power
  • I2C Controls

- Programmable Peak Current Limit

- Programmable Over Current Limit for SYS Load

  • Integrated SYS Current Sense
  • Do+/Do- Divider Mode Compliant
  • QC3.0 Class a Output Compliant

- 5V/4A

- 9V/2.22A

- 12V/1.67A

  • MTK PE+ Compliant
  • Host Enable Control for Standby Mode
  • Over Temperature Protection
  • Battery UTP/OTP
  • Light Load Status Indication

Evaluation Board

  • 20778-

    Photo of evaluation board

  • 20778

    Photo of evaluation board

  • 20778--

    Photo of evaluation board

EVB_SY20778QYC

The EVB_SY20778QYC is used to evaluate fully integrated synchronous boost converter with QC3.0 SY20778QYC.

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12

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