SM8103数据手册Silergy中文资料规格书

描述 Description

The SM8103 is a high efficiency, 500kHz synchronous step-down DC/DC regulator capable of delivering up to 3A load current. It can operate over a wide input voltage range from 4.2V to 18V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.\r
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The SM8103 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 to minimize the size of the inductor and the capacitor.

特性 Features

• Low RDS(ON) for Internal Switches (Top/Bottom): 90mΩ/50mΩ\r
• 4.2-18V Input Voltage Range\r
• 3A Output Current Capability\r
• 500kHz Switching Frequency Minimize the External Components\r
• Stable with 10µF COUT and 2.2µH Inductor\r
• Instant PWM Architecture to Achieve Fast Transient Responses\r
• Internal Soft-start Limits the Inrush Current\r
• Cycle-by-cycle Peak/Valley Current Limitation\r
• Hic-cup Mode Output Short Circuit Protection\r
• Thermal Shutdown with Auto Recovery\r
• Output Auto Discharge Function\r
• Compact Package: TSOT23-6

应用 Application

• Set Top Box\r
• Portable TV\r
• DSL Modem\r
• LCD TV\r
• IP CAM\r
• Networking