S-1132B47-I6T2U

Current - Output:	300mA
Supplier Device Package:	SNT-6A (H)
Package / Case:	6-SMD, Flat Leads
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current
Control Features:	Enable
PSRR:	65dB (1kHz)
Current - Supply (Max):	40µA
Current - Quiescent (Iq):	1µA
Series:	S-1132
Voltage Dropout (Max):	0.15V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4.7V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The S-1132B47-I6T2U is a linear voltage regulator integrated circuit (IC) that is used in a variety of applications. Its design combines power MOSFETs, current limiting, and thermal shutdown protection. This chip also contains ripple reduction circuitry. It provides output DC voltages up to 30V with up to 1A operating current. The chip has a typical temperature coefficient of 0.3mV/°C, and an overall temperature range of -40°C to +125°C.

Applications

The S-1132B47-I6T2U is used in applications requiring a low drop-out linear regulator with a wide input voltage range and high power density. Its transient response and low output voltage noise make it suitable for various audio, video, and signal processing applications. The chip is also suitable for powering communication systems, as well as medical and industrial products that require robust power stabilization.

Working Principle

The S-1132B47-I6T2U operates using a classical linear regulator topology. It consists of three main elements: a power MOSFET, a current limiting circuit, and a thermal shutdown protection circuit. The power MOSFET is the main switch in the voltage regulation process and is used to control the output voltage. The current limiting circuit is configured such that it will limit the maximum output current from the regulator. This is necessary in order to protect the device from short-circuit and overload conditions. The thermal shutdown protection circuit is used to protect the device from high temperatures, which can damage the die and functionality of the device. The regulator is designed using internal components to reduce the ripple present in the output voltage. This is achieved by using a combination of a low-pass capacitor and an internal error amplifier. The capacitor is connected to the ground node of the output voltage and will filter out the high frequency noise and ripple from the input voltage. The output voltage is compared to a reference voltage, which is fed back to the regulator, by an internal error amplifier. This process is done in order to maintain a constant output voltage and low noise.

Conclusion

The S-1132B47-I6T2U is an ideal linear voltage regulator IC for a variety of applications requiring a low drop-out design. Its wide input voltage range, high power density, and superior transient response make it suitable for powering audio, video, and signal processing applications, as well as communication systems, medical, and industrial products. The chip is protected by a combination of a power MOSFET, current limiting circuit, and thermal shutdown protection circuit. The regulator also uses a low-pass capacitor and internal error amplifier to reduce output voltage ripple.

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