MCP1754ST-5002E/DB

Current - Output:	150mA
Base Part Number:	MCP1754
Supplier Device Package:	SOT-223-3
Package / Case:	TO-261-4, TO-261AA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	--
PSRR:	72dB (1kHz)
Current - Supply (Max):	250µA
Current - Quiescent (Iq):	90µA
Series:	--
Voltage Dropout (Max):	0.5V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The MCP1754ST-5002E/DB is part of Microchip the industry leader in linear voltage regulator solutions. It offers a precise output control with low quiescent current, fast transient response and low output noise. The MCP1754ST-5002E/DB is ideal for low power applications that require a low output voltage and noise, such as portable devices, battery-powered applications, or devices that require a low voltage standby mode. It is designed to provide an output voltage of 5.0V ±2.0%.

Application Field

The MCP1754ST-5002E/DB is a voltage regulator that can be used for a wide range of applications. Its features make it ideal for powering low power applications that require noise, low output voltage and transient response. It is suitable for portable devices, for battery-powered applications, and for devices with low voltage standby modes. It can be used for AC/DC adaptors and power supplies, industrial, embedded and telecom applications, as well as automotive, automotive aftermarket, and Industrial Automation applications.

Features

The MCP1754ST-5002E/DB offers a precision output control and provides low quiescent current (1.5 µA typ), fast transient response, low output noise, and a guaranteed output voltage accuracy of ±2.0%. It also has a high input voltage range up to 40V. The device also features thermal shutdown protection against over-temperature conditions as well as output current limiting and short-circuit protection. The device is also RoHS compliant and has a wide operating temperature range from -40 to +125 °C.

Package Options

The MCP1754ST-5002E/DB is available in a three-terminal SOT-23 package for ease of use. It also includes an optional thermal pad for improved thermal performance.

Configuration

The configuration and operation for the MCP1754ST-5002E/DB is done through an internal OTP circuit. The device is capable of adjusting the output voltage from 4.77V to 5.23V, depending on the output load current. The maximum output current for the device is 250mA. The device also has an adjustable output voltage limit (OVL). This feature can be used to reduce output voltage when the output current exceeds a predetermined level.When the input voltage is below the drop-out voltage, the device goes into a low quiescent current mode. This mode reduces the quiescent current to 0.015µA (typ). In addition, the device has a low drop-out voltage of 0.47V at maximum load current.

Working Principle

The MCP1754ST-5002E/DB is a linear voltage regulator. It works by comparing the reference voltage to the voltage across a sense resistor. When the voltage at the sense resistor is higher than the reference voltage, the conductance of the error amplifier (EA) decreases. This decrease in conductance results in a decrease in the output voltage of the regulator. When the voltage at the sense resistor is lower than the reference voltage, the conductance of the error amplifier increases. This increase in conductance results in an increase in the output voltage of the regulator. The output voltage is thus regulated to a stable value. The feedback loop within the voltage regulator keeps the output voltage at a constant level. The output voltage level is determined by the reference voltage. The output voltage of the device can also be adjusted by varying the sense resistor value. This can be used to adjust the output voltage of the regulator according to the load requirements.

Conclusion

The MCP1754ST-5002E/DB is a linear voltage regulator suitable for low power applications that require noise, low output voltage and transient response. It features a low quiescent current of 1.5µA, fast transient response, low output noise and high output voltage accuracy. It is available in an SOT-23 package and includes optional thermal pad for improved thermal performance. The device can be configured with an internal OTP circuit and has an adjustable output voltage range up to 5.23V. The MCP1754ST-5002E/DB is an ideal choice for applications requiring a low output voltage and noise.

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