SY20718GQDC (SY6918GQDC)

High Efficiency Bi-direction Power Bank Regulator for Single-cell Battery Power Bank

Part number	SY20718GQDC
Vin (max) (V)	5.35
Vin (min) (V)	4.5
Absolute max Vin (max) (V)
Number of series cells	Single Cell
Charge voltage (max) (V)
Charge voltage (min) (V)
Charge current (max) (A)	2.5
Charge current (min) (A)
Integrated FETs(Yes/No)
Topology
Control interface
Features	Prog. Current Limit, 4.75V Boost
Operating temperature range(°C)
Package	QFN3x3-16

Maximum 18V Input Voltage Surge
Bad Adapter Detection
Build in Power Path NFETs and Power Switches
500kHz Switching Frequency Operation
Trickle Current / Constant Current / Constant Voltage Charge Mode with Internal Compensation
Maximum 2A Constant Charge Current
Maximum 2.5A Boost Output Current
4.2V/4.35V Selectable Battery Cell Voltage
+/-0.5% Cell Voltage Accuracy
Charge/Discharge/Fault Status Indicator
Discharging Control Logic
Programmable Input Current Limit
Dynamic Power Management
Cycle-by-cycle Peak Current Limitation
Input Voltage UVLO and OVP
Boost Output Short Circuit Protection
Thermal Shutdown

EVB_SY20718GQDC

The EVB_SY20718GQDC is used to evaluate 5V adapter input with up to 18V surge bi-directional regulator SY20718GQDC.

Title	Date
Silergy_Catalog_Q2_2026	2026-06-12

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