TPS65273VRHHT

Series:	--
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Programmable
Number of Outputs:	2
Voltage - Input (Min):	4.5V
Voltage - Input (Max):	18V
Voltage - Output (Min/Fixed):	0.68V
Voltage - Output (Max):	1.95V
Current - Output:	3.5A
Frequency - Switching:	200kHz ~ 1.6MHz
Synchronous Rectifier:	Yes
Operating Temperature:	-40°C ~ 85°C (TA)

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IntroductionThe TPS65273VRHHT is a highly integrated Power Management IC (PMIC) designed for a variety of applications. It is a voltage and current regulator manufactured by Texas Instruments, a US-based semiconductor manufacturer. The TPS65273VRHHT is an advanced, low-power DC-DC switching regulator, which is capable of providing a reliable power supply for a range of applications. It is an ideal solution for smartphones, tablets, notebooks, and other electronic devices.Application FieldThe TPS65273VRHHT is specifically designed for powering devices where the space and power efficiency are of utmost importance. It is a popular choice for applications such as cell phones and mobile devices, portable gaming consoles, digital cameras, MP3 players, and tablet PCs. The device can be configured to support 1.5 V to 5.5 V inputs and provides a reliable output voltage of 2.6 V to 5.5 V. The advanced switching regulator is capable of both synchronous and asynchronous mode and can be used to drive internal and external loads. It is designed to optimize power efficiency, reduce component count, and enable a smaller form factor. The device is individually optimized for high power supply efficiency and low quiescent current. It is also capable of supporting fast transient response and wide input voltage ranges. Feature Highlights• Output current: 1.5 A• Output voltage range: 2.6 V to 5.5 V• Input voltage range: 1.5 V to 5.5 V• Programmable output voltage• Output pulse-width-modulated (PWM) and pulse-frequency-modulated (PFM) modes• Multiple protection features• Advanced bias voltage referenceWorking PrincipleThe TPS65273VRHHT utilizes a pulse-width modulation (PWM) and pulse-frequency modulation (PFM) to economically regulate the output voltage. The device is also capable of supporting multiple output power stages. During operation, the device constantly monitors and regulates the output voltage according to programmed settings. This helps optimize the power efficiency of an application. The PWM output controller is used to generate the output voltage by switching between two modes: pulse-width modulation (PWM) mode and pulse-frequency modulation (PFM) mode. In the PWM mode, the device switches the switch on and off at a constant frequency and duty cycle to generate a steady output voltage. The PFM mode is used when the output current is lower than the current threshold, and the device operates at a lower frequency and duty cycle to reduce switching losses. The TPS65273VRHHT also contains an advanced integrated bias voltage reference circuit which provides an accurate bias voltage reference. The device is designed to provide a low-power operation and reduce the system power dissipation. The TPS65273VRHHT also incorporates several protection features that help prevent overvoltage, undervoltage, and overcurrent faults. ConclusionThe TPS65273VRHHT is an efficient DC-DC switching regulator designed by Texas Instruments. It is ideal for powering applications that require a reliable power supply with a small form factor. The device supports a variety of inputs and outputs and is capable of both synchronous and asynchronous operation. The device is highly integrated and can help reduce component count and power loss. It also has several protection features built-in to protect against overvoltage and overcurrent faults.

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