MIC37100

The MIC37100, MIC37101, and MIC37102 are 1A low dropout, linear voltage regulators that provide low-voltage, high-current output from an extremely small package. Utilizing proprietary Super βeta PNP® pass element, the MIC37100/01/02 offers extremely low dropout (typically 280mV at 1A) and low ground current (typically 11mA at 1A).

The MIC37100 is a fixed output regulator offered in the SOT-223 package. The MIC37101 and MIC37102 are fixed and adjustable regulators, respectively, in a thermally enhanced power 8-pin SOIC (small outline package) and the SOT-223 package. The MIC37102 is also available in the S-PAK power package for applications that require higher power dissipation or higher operating ambient temperatures.

The MIC37100/01/02 is ideal for PC add-in cards that need to convert from standard 5V to 3.3V, 3.3V to 2.5V, or 2.5V to 1.8V or lower. A guaranteed maximum dropout voltage of 500mV over all operating conditions allows the MIC37100/01/02 to provide 2.5V from a supply as low as 3V and 1.8V from a supply as low as 2.3V.

The MIC37100/01/02 is fully protected with overcurrent limiting and thermal shutdown. Fixed output voltages of 1.5V, 1.65V, 1.8V, 2.5V, and 3.3V are available on MIC37100/01 with adjustable output voltages to 1.24V on MIC37102.

For other voltages, contact Micrel.

Features
  • Fixed and adjustable output voltages to 1.24V
  • µCap Regulator, 10µF ceramic output capacitor stable
  • 280mV typical dropout at 1A Ideal for 3.0V to 2.5V conversion Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion
  • Ideal for 3.0V to 2.5V conversion
  • Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion
  • 1A minimum guaranteed output current
  • 1% initial accuracy
  • Low ground current
  • Current limiting and thermal shutdown
  • Reverse leakage protection
  • Fast transient response
  • Low-profile SOT-223 package
  • Power SO-8 package
  • S-PAK package (MIC37102 only)
Parameter
Parameter Name Value Value
Product Type Single LDOs Single LDOs
# of Out 1 1
IOUT #1
IOUT #2
IOUT #3
IOUT #4
IOUT (mA) 1000 1000
VIN Min (V) 2.25 2.25
VIN Max (V) 6 6
VOUT (V) 1.5, 1.65, 1.8, 2.5, 3.3 1.5, 1.65, 1.8, 2.5, 3.3
Voltage Drop Typ (mV) 280 280
IGND Typ (µA) 400 400
Tol Typ % ±1 ±1
PSRR 1 kHz (dB) 50 50
Soft Start Pin
Load Dump
Rev Bat Yes Yes
Reverse Current Protect Yes Yes
Documents
MIC37100/37101/37102 -1A Low-Voltage µCap LDOData Sheets11/09/2015702KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC37100-1.5WS3SOT-223-40C to +125CTUBE1.190.990.900.750.69
MIC37100-1.5WS-TR3SOT-223-40C to +125CT/R1.190.990.900.750.69
MIC37100-1.8WS3SOT-223-40C to +125CTUBE**********
MIC37100-1.8WS-TR3SOT-223-40C to +125CT/R1.190.990.900.750.69
MIC37100-2.5WS3SOT-223-40C to +125CTUBE**********
MIC37100-2.5WS-TR3SOT-223-40C to +125CT/R1.271.050.960.800.74
MIC37100-3.3WS3SOT-223-40C to +125CTUBE1.271.050.960.800.74
MIC37100-3.3WS-TR3SOT-223-40C to +125CT/R1.271.050.960.800.74
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC37100-1.65WS0.1230000.2435903SOT-223-Matte Tine3
MIC37100-3.3WS0.1230000.2435903SOT-223-Matte Tine3
MIC37100-3.3WS-TR0.1230000.4400003SOT-223-Matte Tine3
MIC37100-2.5WS0.1230000.2435903SOT-223-Matte Tine3
MIC37100-1.5WS0.1230000.2435903SOT-223-Matte Tine3
MIC37100-2.5WS-TR0.1230000.4400003SOT-223-Matte Tine3
MIC37100-1.65WS-TR0.1230000.4400003SOT-223-Matte Tine3
MIC37100-1.8WS0.1230000.2435903SOT-223-Matte Tine3
MIC37100-1.8WS-TR0.1230000.4400003SOT-223-Matte Tine3
MIC37100-1.5WS-TR0.1230000.4400003SOT-223-Matte Tine3
MIC37100/37101/37102 -1A Low-Voltage µCap LDO MIC37102
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