SGM2100数据手册SGMICRO中文资料规格书

描述 Description

The SGM2100 is a single chip power management unit for a wide range of portable applications. It incorporates three synchronous switching regulators and four switching regulator controllers in a space saving thin QFN package. High efficiency, compact size and flexible configuration make SGM2100 the ideal power supply solution for two AA cells or single Li-ion battery powered equipments.Synchronous switching regulators, SU, SD, & MAIN, provide the core powers for CPU, DSP and I/O. Switching regulator controllers, AUX1, AUX2, AUX3 and AUX4, coupled with external MOSFETs provide versatile auxiliary powers for image sensor, LCD panel bias, LED backlight, stepping motor, or memory module.All channels operate at the same programmable constant switching frequency, ranging from 100kHz to 1MHz. Each channel, with built-in digital soft-start, can be individually selected, and programmed to the desired output voltage with two external resistors. Power OK, short-circuit flag and thermal protection features provide the system status and extra level of fault protection.The SGM2100 is available in Green TQFN-7×7-48L package and is rated over the -40℃ to +85℃ temperature range.

特性 Features

• 2A, Step-Up Synchronous Switching Regulator with
1.1V Start-Up Voltage, 90% Efficiency
• 1A, Step-Down Synchronous Switching Regulator,
90% Efficiency
• 1A, Pin Selectable Step-Up or Step-Down, Synchronous
Switching Regulator, 90% Efficiency
• Step-Up Switching Regulator Controller, with Power OK
Indicator
• Transformerless Inverting Switching Regulator Controller
• Constant Current Step-Up Switching Regulator Controller,
LED Driver, with Output Open Protection
• Pin Selectable Step-Up or Step-Down Switching Regulator
Controller, with Power OK Indicator
• Operates from 100kHz to 1MHz Switching Frequency
• Individual Enable, Digital Soft-Start and Overload Protection
• 1μA Quiescent Current in Shutdown Mode
• Available in Green TQFN-7×7-48L Package
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应用 Application

Digital still Cameras, Camcorders
Smart Mobile Phones, PDAs
Portable GPS Equipments
Handheld Multi-Media Equipments

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