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模擬和接口芯片

SGM62112

SGM62112

1.8A Switch Current Single Inductor Buck-Boost Converter

產(chǎn)品特性
GENERAL DESCRIPTION

The SGM62112 is a fully-integrated synchronous Buck-Boost converter which is capable of operating from 1.8V to 5.5V input and suitable for battery powered applications such as 1-cell Li-Ion battery, 2-cell or 3-cell Alkaline/NiMH batteries. The device supports up to 1200mA output current at higher than 3.8V input voltage, and 800mA output current at higher than 2.5V input voltage.

The SGM62112 adopts the current mode control with a fixed 1.4MHz (TYP) switching frequency to regulate the output voltage. In addition, the SGM62112 offers configurable light load PWM (pulse width modulation) operation or auto PFM (pulse frequency modulation) mode via MODE/SYNC pin configuration. PFM mode enables higher light load efficiency, while forced PWM operation ensures constant switching frequency throughout entire load range.

The SGM62112 offers various protection features to improve device robustness such as soft-start to reduce inrush current during startup, cycle-by-cycle over-current protection and thermal shutdown protection. In addition, the device features true load disconnect when the EN pin is pulled low.

The SGM62112 is available in a Green TDFN-3×3-10L package.

PIN CONFIGURATIONS

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FEATURES

  • 1.8V to 5.5V Input Voltage Range

  • 1.2V to 5.5V Output Voltage Range (Fixed and Adjustable)

  • Up to 96% Efficiency

  • Less than 55μA Quiescent Current

  • Output Current at 3.3V:

    Up to 1200mA in Buck Mode

    Up to 800mA in Boost Mode (VIN > 2.5V)

  • Real Buck, Boost and Buck-Boost Modes

  • Automatic Mode Transition

  • Auto PFM and Forced PWM Selectable

  • External Clock Synchronization

  • True Shutdown Function with Load Disconnect

  • OTP Protection

  • Available in a Green TDFN-3×3-10L Package


SGM62112 IS PIN TO PIN REPLACE 替代 TPS63030
 兩者差異如下 TPS63030

  • Input voltage range: 1.8 V to 5.5 V
  • Fixed and adjustable output voltage options from 1.2 V to 5.5 V
  • Up to 96% efficiency
  • 800-mA Output current at 3.3 V in step-down mode (VIN = 3.6 V to 5.5 V)   SGM62112 電流更大寫(xiě) 1.2A
  • Up to 500-mA output current at 3.3 V in boost mode (VIN > 2.4 V)
  • Automatic transition between step-down and boost mode
  • Device quiescent current less than 50 μA  
  • Power-save mode for improved efficiency at low-output power
  • Forced fixed frequency operation and synchronization possible
  • Load disconnect during shutdown
  • Overtemperature protection
  • Available in a small 2.5-mm × 2.5-mm 10-pin VSON package (QFN)



ORDERING INFORMATION
Part NumberStatusPackagePinsPb-FreeTemp Range
SGM62112-3.3YTD10G/TRProductionTDFN-3×3-10L10Y-40℃ to +85℃Samples
SGM62112-ADJYTD10G/TRProductionTDFN-3×3-10L10Y-40℃ to +85℃Samples


產(chǎn)品應(yīng)用

Medical Equipment

System Bias
IPC


規(guī)格
型號(hào)DataSheetDimension (mm)Description