TPS72010DRVT

Current - Output:	350mA
Base Part Number:	TPS72010
Supplier Device Package:	6-WSON (2x2)
Package / Case:	6-WDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Protection Features:	Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Control Features:	Enable
PSRR:	85dB ~ 50dB (10Hz ~ 1MHz)
Current - Supply (Max):	80µA
Current - Quiescent (Iq):	38µA
Series:	--
Voltage Dropout (Max):	0.2V @ 350mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1V
Voltage - Input (Max):	4.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionTPS72010DRVT is a low-voltage, low-dropout (LDO) linear regulator from Texas Instruments. It has been designed to deliver a wide range of regulated voltages from a single, small-outline package. This device is suitable for applications where power requirements are below 600 mW, space is at a premium and where regulation to specified noise and tolerance limits is essential. Application FieldThe TPS72010DRVT LDO regulator is ideal for applications such as mobile phones, PDAs and other portable end-equipment that require a low-voltage, heavily regulated supply. It is also suitable for the powering of low-power voltage references, low-power general purpose analog circuits, switch-mode power supply (SMPS) controllers and battery-operated systems. In addition, TPS72010DRVT is well suited for power-supply noise-sensitive components such as amplifiers, microprocessors, digital signal processors (DSPs), ASICs and memory devices. It is well-suited for DSPs and ASICs that require a low-noise supply voltage such as mobile-phone baseband digital sections. Working PrincipleThe TPS72010DRVT is composed of a precision voltage reference, an error amplifier, a PMOS pass transistor and several other circuit components. The external components of the TPS72010DRVT LDO regulator mainly include a Resistive Output (R1) and a Bypass Capacitor (C1). R1 creates a voltage drop across itself proportional to the current flowing through it to the output. This voltage drop is then compared to a voltage reference (1.2V) provided by the internal precision voltage reference. This comparison is done by using the internal error amplifier, and is used to control the gate of the internal PMOS pass transistor. The bypass capacitor connected to the output smoothes out any fluctuations in the output voltage caused by the current flowing through R1. This ensures that the output voltage is maintained within the regulated output voltage range. ConclusionThe TPS72010DRVT from Texas Instruments is an excellent LDO voltage regulator with a wide input voltage range and wide output voltage range that can provide a wide variety of regulated voltages from a single, small-outline package. It is suitable for applications where power requirements are less than 600 mW and space is at a premium. Its precision voltage reference, error amplifier and PMOS pass transistor make it an ideal choice for powering noise-sensitive components such as amplifiers, microprocessors, DSPs, ASICs and memory devices.

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