NCP161AFCT185T2G Datasheet/PDFPMIC - Voltage Regulators - Linear
NCP161AFCT185T2G is an advanced voltage regulator module manufactured by ON Semiconductor. It is designed to serve as a low-dropout (LDO) linear regulator for mobile applications. NCP161AFCT185T2G provides users with exceptional load transient performance and high-precision output voltage regulation at as low as 185mV dropout voltage.
Application Fields
NCP161AFCT185T2G is intended for digital load applications where flicker high-frequency noise output is not an issue. With the waveform distortion less than 1%, it is suitable for multiple applications, including but not limited to cell phones, mobile LED backlighting, PDA power supply, Digital TV and other portable devices.
Operating Specifications
- Input Voltage Range: 2.7V to 5.5V
- Output Voltage Range: 0.8V to 3.3V
- Quiescent Current: 10μA
- Line and Load Regulation: 0.1%
- Dropout Voltage: 185mV @1A
- Output Noise Voltage: 30μV
- Switch Frequency: 1.2MHz
- Output Current: 1A
Working Principle
NCP161AFCT185T2G uses the typical voltage regulating circuit. It has two essential parts: an error amplifier and an output transistor. First, the sense resistor and reference voltage source are combined to generate a 0.1V to 0.3V difference voltage across the error amplifier\'s two inputs. Then, the error amplifier will compare this difference voltage with the output voltage and produces an error voltage that is proportional to the load current. This error voltage will be sent to the output transistor for further control and the output voltage will be maintained in a stable range.
Advantages
- High-precision, stable output voltage even with a low dropout voltage.
- Small, lightweight package.
- Excellent line and load regulation.
- High efficiency switching operations.
- Low output noise.
- High current output.
The NCP161AFCT185T2G is an ideal choice to provide an efficient, high-performance and reliable voltage regulation systems. It can be widely used in various digital load applications to ensure a stable and precise supply chain.