RT9193-2HGQW

Voltage Dropout (Max):	0.3V @ 300mA
Supplier Device Package:	6-WDFN (2x2)
Package / Case:	6-WDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	70dB ~ 50dB (100Hz ~ 10kHz)
Current - Quiescent (Iq):	130µA
Current - Output:	300mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.85V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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​RT9193-2HGQW Introduction

RT9193-2HGQW is a high performance, low dropout, low noise voltage regulator in a SOT-25 package. This device combines a positive voltage regulator circuit, a negative voltage regulator circuit, and a high current driver circuit in one chip to provide a complete power supply system for advanced systems, such as digital cameras and portable devices.

​Applications

RT9193-2HGQW is an integrated linear regulator circuit which can regulate both positive and negative voltage from an input voltage source. This voltage regulator is suitable for a wide range of applications, such as digital cameras, portable devices, automotive electronics, and industrial control systems.

​Working Principle

The RT9193-2HGQW is a simple, low-noise, low-dropout voltage regulator, which consists of three active stages along with a switched-mode controller and low-noise loop compensation. The three active stages include a positive voltage regulator circuit, a negative voltage regulator circuit, and a high current driver circuit.The positive voltage regulator is a series pass element which consists of a P-channel power MOSFET, an n-channel current source and an adjustable error amplifier. The n-channel MOSFET is the switch, and the error amplifier works to maintain a constant output voltage by controlling the on-time of the switch. The negative voltage regulator works in a similar way, except the switch is an n-channel MOSFET and the error amplifier is a PNP-type.The high current driver circuit ramps up and down the switch drive signals as needed to deliver high and stable output current waveforms. The current source supplies the drive current for the switch, and is adjustable via an external resistor. Finally, the switched-mode controller and feedback loop compensation circuit combine to provide excellent dynamic performance, low noise during regulation, and accurate regulation of voltage and current.

​Conclusion

The RT9193-2HGQW is a high performance, low dropout, low noise voltage regulator integrated with a positive voltage regulator circuit, a negative voltage regulator circuit, and a high current driver circuit in one chip. This device is suitable for a wide range of applications, such as digital cameras, portable devices, automotive electronics, and industrial control systems. The regulator is capable of accurate regulation of voltage and current with excellent dynamic performance, low noise during regulation, and accurate regulation of voltage and current.

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