MIC3975

The MIC3975 is a 750mA low dropout linear voltage regulator that provide low-voltage, high-current output from an extremely small package. Utilizing proprietary Superβeta PNP® pass element, the MIC3975 offers extremely low dropout (typically 300mV at 750mA) and low ground current (typically 6.5mA at 750mA).

The MIC3975 is ideal for PC add-in cards that need to convert from standard 5V to 3.3V or 3.0V, 3.3V to 2.5V, or 2.5V to 1.8V or 1.65V. A guaranteed maximum dropout voltage of 500mV over all operating conditions allows the MIC3975 to provide 2.5V from a supply as low as 3.0V and 1.8V or 1.65V from a supply as low as 2.25V.

The MIC3975 is fully protected with overcurrent limiting, thermal shutdown, and reverse battery protection. Fixed voltages of 5.0V, 3.3V, 3.0, 2.5V, 1.8V, and 1.65V are available. An adjustable output voltage option is available for voltages down to 1.24V.

For other voltages, contact Micrel for details.

产品特性
  • Fixed and adjustable output voltages to 1.24V
  • 280mV typical dropout at 750mA Ideal for 3.0V to 2.5V conversion Ideal for 2.5V to 1.8V or 1.65V conversion
  • Ideal for 3.0V to 2.5V conversion
  • Ideal for 2.5V to 1.8V or 1.65V conversion
  • Stable with ceramic capacitor
  • 750mA minimum guaranteed output current
  • 1% initial accuracy
  • Low ground current
  • Current limiting and thermal shutdown
  • Reverse battery protection
  • Reverse leakage protection
  • Fast transient response
  • Low-profile MSOP-8
技术参数
Parameter Name Value Value
Product Type Single LDOs Single LDOs
# of Out 1 1
IOUT #1
IOUT #2
IOUT #3
IOUT #4
IOUT (mA) 750 750
VIN Min (V) 2.25 2.25
VIN Max (V) 16 16
VOUT (V) 1.65, 1.8, 2.5, 3.0, 3.3, 5.0, Adj 1.65, 1.8, 2.5, 3.0, 3.3, 5.0, Adj
Voltage Drop Typ (mV) 300 300
IGND Typ (µA) 7 7
Tol Typ % ±1 ±1
PSRR 1 kHz (dB) 55 55
Soft Start Pin
Load Dump
Rev Bat
Reverse Current Protect Yes Yes
文档资料
MIC3975 Data SheetData Sheets11/05/2015640KB
订购型号
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC3975-3.3YMM8MSOP-40C to +125CTUBE**********
MIC3975-3.3YMM-TR8MSOP-40C to +125CT/R1.871.561.421.181.09
MIC3975-5.0YMM8MSOP-40C to +125CTUBE1.871.561.421.181.09
MIC3975-5.0YMM-TR8MSOP-40C to +125CT/R1.871.561.421.181.09
MIC3975YMM8MSOP-40C to +125CTUBE1.871.561.421.181.09
MIC3975YMM-TR8MSOP-40C to +125CT/R1.871.561.421.181.09
器件无铅环保信息
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC3975-3.3YMM0.0251000.1246008MSOP3x3x1.0mmNiPdAue4
MIC3975-2.5YMM-TR0.0251000.3347008MSOP3x3x1.0mmNiPdAue4
MIC3975YMM-TR0.0251000.3347008MSOP3x3x1.0mmNiPdAue4
MIC3975-1.8YMM-TR0.0251000.3347008MSOP3x3x1.0mmNiPdAue4
MIC3975-2.5YMM0.0251000.1246008MSOP3x3x1.0mmNiPdAue4
MIC3975-1.65YMM-TR0.0251000.3347008MSOP3x3x1.0mmNiPdAue4
MIC3975-5.0YMM-TR0.0251000.3347008MSOP3x3x1.0mmNiPdAue4
MIC3975-3.0YMM0.0251000.1246008MSOP3x3x1.0mmNiPdAue4
MIC3975YMM0.0251000.1246008MSOP3x3x1.0mmNiPdAue4
MIC3975-1.8YMM0.0251000.1246008MSOP3x3x1.0mmNiPdAue4
MIC3975-3.3YMM-TR0.0251000.3347008MSOP3x3x1.0mmNiPdAue4
MIC3975-1.65YMM0.0251000.1246008MSOP3x3x1.0mmNiPdAue4
MIC3975-5.0YMM0.0251000.1246008MSOP3x3x1.0mmNiPdAue4
MIC3975-3.0YMM-TR0.0251000.3347008MSOP3x3x1.0mmNiPdAue4
MIC3975 Data Sheet MIC3975