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Product attributes Property Value
Manufacturer MCC (Micro Commercial Components)
Product Series
Packaging Bulk |
Output Configuration Positive
Output Type Adjustable
Number of Regulators 1
Voltage - Input (Max) 30V
Voltage - Output (Min/Fixed) 1.25V
Voltage - Output (Max) -
Voltage Dropout (Max) 1.4V @ 1A
Current - Output 1A
Current - Quiescent (Iq) 5 mA
Current - Supply (Max) -
PSRR 60dB ~ 62dB (120Hz ~ 1kHz)
Control Features -
Protection Features Over Temperature
Operating Temperature -20°C ~ 125°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA
Supplier Device Package SOT-223

The MCC MCT1117C-ADJ is an adjustable LDO regulator delivering up to 1A. With a 1.25V reference and 1.4V dropout at full load, it offers flexibility for various output voltages. The SOT-223 package supports moderate power dissipation.

  • High Current: 1A output for demanding loads.
  • Adjustable Output: Set any voltage from 1.25V up with two resistors.
  • Good PSRR: 60-62dB rejection reduces ripple.
  • Standard Package: SOT-223 widely used and easy to source.

High-Current FPGA/ASIC Supplies

1A output with adjustable voltage (via external resistors) powers core logic requiring 1.8V to 5V rails.

Post-Regulation for Switching Converters

60-62dB PSRR filters switching noise from buck converters, providing clean analog supplies.

Battery Charger Circuits

Adjustable output sets precise charge voltages for Li-ion and lead-acid batteries.

Bench Power Supplies

Used as a programmable output stage in DIY lab supplies, with 1A capability for general testing.

LED Driver Bias

Provides stable bias voltage for LED driver ICs in lighting systems, with thermal protection.

Audio Amplifier Rails

Adjustable output creates symmetric ±rails for op-amp circuits, with low noise.

Q: What is the output voltage?
A: Adjustable output, with reference voltage of 1.25V.
Q: What is the maximum output current?
A: 1A.
Q: What is the input voltage range?
A: Not specified in the provided data; consult the datasheet.
Q: What is the dropout voltage?
A: 1.4V at 1A load.
Q: What is the quiescent current?
A: 5 mA.
Q: What package is available?
A: SOT-223 package.
Base Product Number : MCT1117C-ADJ
1.25V Reference 1A Adjustable LDO Linear Regulator MCC SOT-223
Q: What is the output voltage?
A: Adjustable output, with reference voltage of 1.25V.
Q: What is the maximum output current?
A: 1A.
Q: What is the input voltage range?
A: Not specified in the provided data; consult the datasheet.
Q: What is the dropout voltage?
A: 1.4V at 1A load.
Q: What is the quiescent current?
A: 5 mA.
Q: What package is available?
A: SOT-223 package.