SY21092DBC (SY8222DBC)

• Low RDS(ON) for internal switches (top/bottom): 150/110 mΩ
• 4.5-23V input voltage range
• Instant PWM architecture to achieve fast transient responses
• Programmable soft-start limits the inrush current
• Pseudo-constant frequency: 500kHz
• 2Aoutput current capability
• ±1.5% 0.6V reference
• Hic-cup mode output short circuit protection
• RoHS Compliant and Halogen Free
• Compact package: DFN3x3-10

SY21092 develops a high efficiency synchronous step-down DC-DC converter capable of delivering 2A output current. SY21092 operates over a wide input voltage range from 4.5V to 23V and integrates main switch and synchronous switch with very low R_DS(ON) to minimize the conduction loss.

SY21092 adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 500kHz under continuous conduction mode to minimize the size of inductor and capacitor.