XC6501B2817R-G

Current - Output:	200mA
Base Part Number:	XC6501
Supplier Device Package:	4-USPN (0.90x1.2)
Package / Case:	4-UDFN
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Short Circuit
Control Features:	Enable
PSRR:	50dB (1kHz)
Current - Quiescent (Iq):	20µA
Series:	--
Voltage Dropout (Max):	0.36V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.8V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

XC6501B2817R-G is an advanced, low-noise, low-dropout linear voltage regulator. It is designed to deliver a cost-effective solution to efficiently reduce the input voltage and convert it to a desired output voltage. XC6501B2817R-G combines all the essential features that make it suitable for a wide range of applications and is ideal for use in various industrial, automotive and communication control systems.

Applications

XC6501B2817R-G can be used in various applications such as power management in portable devices and embedded systems, system management in microcontrollers, motor controllers and power supplies, voltage regulation in automotive, industrial and communications applications and other applications that require low-dropout and low-noise voltage regulation.

Features

XC6501B2817R-G features a wide input voltage range of 2.7V to 28V, an output voltage range of 0.8V to 28V and an output current rating of up to 2A. It has a low quiescent current of 12uA at full load, a high power-supply ripple rejection (PSRR), short circuit protection (SCP) and current fold back protection (CFP). The device also features a transient-response time of 1µs and an adjustable soft start delay time of up to 10µs. The integrated thermal-shutdown circuitry allows XC6501B2817R-G to maintain stable operation without external components and provides protection against overload and high temperature operation.

Pin Configuration

XC6501B2817R-G comes in an 8-pin, space-saving SOT23-8 package. The pin configuration is shown in Figure 1. The pin functions are described in the following table:

PINFUNCTIONDESCRIPTION

V_IN InputSupplyVoltage pin

GNDGND Ground Pin

PGOODOK/GoodPowerPin

ENEnable/Shutdown pin

V_OUTOutputVoltage pin

FBFeedbackInputPin

S/SSoftStartpin

OCOver-CurrentProtectionpin

Working Principle

XC6501B2817R-G works on the principle of linear voltage regulation. The device uses a pass transistor to regulate the output voltage by maintaining a constant voltage drop across the load.When the input voltage is higher than the output voltage, the pass transistor acts as a linear resistor, dissipating the excess power as heat. The feedback pin (FB) monitors the output voltage and produces an error signal. This error signal is amplified and then compared with a reference voltage by an internal voltage loop. Based on this comparison, the internal circuit adjusts the gate of the pass transistor, thereby regulating the output voltage.

Conclusion

XC6501B2817R-G is an ideal solution for low noise and high-accuracy voltage regulation. It features high PSRR, short-circuit protection and current fold back protection. It is suitable for a wide range of applications such as power management in embedded systems, system management in microcontrollers and motor controllers, and voltage regulation in automotive and communications applications.

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