SGM66052数据手册SGMICRO中文资料规格书

描述 Description

The SGM66052 is an internally compensated, 1.1MHz switching frequency, current mode, synchronous Boost switching regulator, which is capable of generating 5V output at 1A load current from a 3.3V rail. This device also has the 5.1V fixed output version.

This device turns into power-saving mode to maintain high efficiency by lowering switching frequency. With its anti-ringing circuitry damping the charge in parasitic capacitor, it reduces EMI interference significantly. Its output is disconnected by the rectifier circuit during shutdown, with no input to output leakage.

The SGM66052-5.1 is preset for outputting 5.1V, while the SGM66052-ADJ is output voltage programmable with an external resistor divider.

The device is available in a Green UTDFN-2×1.5-6L package and operates over an ambient temperature range of -40℃ to +85℃.

特性 Features

• 2.2V to 5.1V Input Voltage Range
• 5.1V Fixed Output Voltage
• 6V Output Voltage Clamping
• Adjustable Output Voltage up to 5.1V
• Up to 90% Efficiency
• 20μA (TYP) Device Quiescent Current
• 1μA (MAX) Shutdown Current
• Improved Light Load Efficiency with Power-Save Mode (PSM)
• Load Disconnect during Shutdown
• Low Reverse Leakage Current when VOUT > VIN
• Over-Temperature Protection
• Available in a Green UTDFN-2×1.5-6L Package
• -40℃ to +85℃ Operating Temperature Range

应用 Application

• Single-Cell Li-Ion Powered Products
• Portable Audio Players
• Mobile Phones
• Personal Medical Devices