TPS40192DRCTG4 Integrated Circuits (ICs)

Frequency - Switching:	600kHz
Base Part Number:	TPS40192
Supplier Device Package:	10-VSON (3x3)
Package / Case:	10-VFDFN Exposed Pad
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Enable, Power Good
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	85%
Series:	--
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 18 V
Output Phases:	1
Number of Outputs:	1
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TPS40192DRCTG4 Application Field and Working Principle

The TPS40192DRCTG4 is a compact, synchronous, step-down DC-DC converter, which is optimized to deliver up to 1.3 A at 5 V output voltage. This converter is very suitable for portable and handheld applications where small size and low power consumption are desired. It is based on an advanced hysteretic architecture, incorporating a proven control core, integrated power MOSFETs, and an external R-D synchronous rectifier with an optimized ripple filter. This device provides faster transient response and improved light load efficiency with a “Dropout” mode operating range of 0.9V, which allows the use of a 3V supply in typical applications. The additional features such as fast soft-start, adjustable output voltage, and thermal shutdown make the TPS40192DRCTG4 a perfect DC-DC converter for low power applications.

Overview

The TPS40192DRCTG4 is a step-down DC-DC converter suitable for low power applications. It features an advanced hysteretic topology, which allows the device to switch quickly between the buck and the boost mode. The device utilizes a synchronous rectifier, which improves efficiency over the entire operating range. Furthermore, the device can operate with a 0.9V dropout, which allows the use of a 3V supply in typical applications. The device also features a fast soft-start, adjustable output voltage, and thermal shutdown.

Benefits

The TPS40192DRCTG4 is a great solution for low power applications because of its small size, low power consumption, and fast transient response. The device also offers many benefits such as improved efficiency, a 0.9V dropout, fast soft-start, adjustable output voltage, and thermal shutdown. All these features make the TPS40192DRCTG4 a great choice for low power applications.

Applications

The TPS40192DRCTG4 was designed for applications such as portable and handheld devices where small size, low power consumption and fast transient response is required. This device can be used in a number of applications such as smartphones, tablets, wearable electronic devices, portable medical/healthcare equipment, and industrial/automotive/consumer electronics.

Working Principle

The TPS40192DRCTG4 DC-DC converter utilizes an advanced hysteretic topology, which allows the device to switch quickly between the buck and the boost mode. The device features an internal high-side switch, an external low-side switch, a synchronous rectifier and a ripple filter. The internal high-side switch controls the output voltage, while the external low-side switch controls the inductor current. The synchronous rectifier performs the synchronous switching of the rectifier, and the ripple filter is used to reduce high frequency noise.When the device is in the buck mode, the internal high-side switch is off and the external low-side switch is on. This causes the current of the inductor to increase and the output voltage to decrease. When the device is in the boost mode, the internal high-side switch is on and the external low-side switch is off. This causes the current of the inductor to decrease and the output voltage to increase.To ensure that the device operates efficiently, the output voltage is compared to a reference voltage. If the output voltage is lower than the reference voltage, the device switches to the buck mode and the output voltage is decreased. If the output voltage is higher than the reference voltage, the device switches to the boost mode and the output voltage is increased. This process allows the device to sustain a constant output voltage.

Conclusion

The TPS40192DRCTG4 is a highly efficient step-down DC-DC converter, which is suitable for low power applications. It incorporates an advanced hysteretic control architecture, which ensures a fast transient response and improved efficiency over the entire operating range. Furthermore, the device has many additional features such as fast soft-start, adjustable output voltage, and thermal shutdown. This makes the TPS40192DRCTG4 the perfect choice for applications such as smartphones, tablets, wearable devices, and portable medical equipment.

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