代理產線

SY8253

 2016-02-24

【基本資料】

【產品特性】

• low RDS(ON) for internal switches (top/bottom): 105mΩ/50mΩ
• 4.5-23V input voltage range
• 3A output current capability
• 500 kHz switching frequency
• Instant PWM architecture to achieve fast transient responses.
• Cycle-by-cycle peak current limitation
• Internal softstart limits the inrush current
• Hic-cup mode output short circuit protection
• ±1.5% 0.6V reference
• Power good indicator (SY8253AIC only)

【產品應用】

•Set Top Box
•Portable TV
•Access Point Router
•DSL Modem
•LCD TV
•Industrial and Commercial Low Power Systems
•Computer Peripherals
•Geen Electronices/Appliance
•Point of Requlation for High -Performance SPs,FPGA ,ASICs

【文字介紹】

The SY8253 is a high efficiency 500 kHz synchronous step-down DC-DC converter capable of delivering 3A current. The SY8253 operates over a wide input
voltage range from 4.5V to 23V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.

Low output voltage ripple and small external inductor and capacitor sizes are achieved with 500 kHz switching frequency. It adopts the instant PWM
architecture to achieve fast transient responses for high step down applications