S-1167B32-M5T1U

Current - Output:	150mA
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current
Control Features:	Enable
PSRR:	65dB (1kHz)
Current - Supply (Max):	16µA
Current - Quiescent (Iq):	900nA
Series:	S-1167
Voltage Dropout (Max):	0.23V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.2V
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-1167B32-M5T1U is a high efficiency, three-terminal linear voltage regulator in an ultra-small 6-pin SOT-553 package. The device offers very low quiescent current in pulse-mode operation, making it ideal for battery-powered applications. It features a wide input voltage range of 2.2V to 30V and a guaranteed output voltage accuracy of ± 2% and is capable of delivering up to 1A of continuous output current. In addition, the device features integrated current and power limiting, thermal shutdown and excellent line and load regulation characteristics.

Applications

The S-1167B32-M5T1U is widely used in a variety of applications including portable electronics, laptops, and other battery-powered devices. It is particularly popular in automotive and telecom applications where space is at a premium.

Working Principle

The S-1167B32-M5T1U base-emitter junction of the voltage regulator transistor is controlled by a voltage reference source and an external load resistor. The voltage reference source and load resistor set the output voltage, while two control lines control the regulator’s current and Power Limit (LIM). When the voltage at the base-emitter junction is below the reference voltage and the LIM line is low, the base-emitter junction is biased to the maximum current level and the power is controlled by the LIM line. When the voltage is above the reference voltage and the LIM line is still low, the base-emitter junction is biased to the minimum current level and the output is regulated. When the LIM line is high, the power limit is enforced and the output current is limited to a pre-defined level. The regulator will reduce the maximum output current if the input voltage is higher than the reference voltage or the output is higher than the power limits. The S-1167B32-M5T1U features excellent line and load regulation characteristics as well as integrated protection features such as current limit, thermal shutdown, and reverse protection. The device also includes an enable pin which can be used to shut down the regulator when not in use. The low quiescent current in pulse-mode operation is ideal for battery-powered applications and the built-in protections help to ensure a safe and reliable operation.

Conclusion

The S-1167B32-M5T1U device is a high efficiency, three-terminal, linear voltage regulator ideal for battery-powered applications in a wide variety of applications. The device offers wide input voltage range, guaranteed output voltage accuracy, and 1A of continuous output current with excellent line and load regulation characteristics. In addition, the device features integrated current and power limiting, thermal shutdown and reverse protection. With its small footprint, reliability and low quiescent current in pulse-mode operation, the S-1167B32-M5T1U is a great choice for automotive, telecom and other space-constrained applications.

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