Voltage - Output (Min/Fixed):	1.8V
Base Part Number:	TB7101
Supplier Device Package:	PS-8 (2.9x2.4)
Package / Case:	8-SMD, Flat Lead
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	1MHz
Current - Output:	1A
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.8V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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TB7101AF(T5L1.8,F) Application Field and Working Principle

PMIC - Voltage Regulators - DC DC Switching Regulators

The TB7101AF (T5L1.8,F) is a low-drop, high-efficiency DC/DC switching regulator. It is designed to provide a synchronized buck-boost solution in a wide input voltage range. The switch-mode power supply has been optimized to drive high power loads in a highly noisy, low voltage environment. The device operates at a very low noise level and can provide excellent EMC performance and high power efficiency.The TB7101AF (T5L1.8,F) features an input voltage range of 4.2 V to 20 V and an output voltage range of 0.9 V to 6 V. It has a fast transient response and can maintain a wide and stable output voltage. In addition, the device is also equipped with output voltage settings of 1%, 5%, 10%, 20%, and 25%.The TB7101AF (T5L1.8,F) is suitable for applications that require a high current output, such as automotive, consumer electronics, and industrial power systems. It can be used in a variety of applications such as motor control, power management, and even for providing power for battery systems.Application FieldThe TB7101AF (T5L1.8,F) is ideal for applications where low power loss, compactness, and high power efficiency are required. The device is well suited for use in a variety of consumer and automotive applications such as LED backlighting, digital audio amplifiers, consumer electronics, automotive entertainment systems, and more. The device can also be used in other industrial applications, such as industrial power supplies, UPS systems, and wind turbine power systems. In addition, it is ideal for applications where low noise is a requirement, such as medical systems and portable electronics. Working PrincipleThe TB7101AF (T5L1.8,F) uses an integrated power stage to switch an external inductor for transferring energy from the input to the output. The device operates in boundary conduction mode (or synchronous mode) to improve efficiency and reduce power loss.The device is equipped with an internal driver circuit for controlling the power switching transition. It is able to produce fast transition times of the power switching transition and maintain a stable output voltage. In addition, the device also includes EMI reduction and soft-start features that enable the device to meet both the stringent EMI requirements and provide a low output voltage overshoot during start-up.The integrated gate driver works in conjunction with the over-current protection circuit to ensure that the current drawn by the device remains within safe limits. The device also features a pulse-by-pulse current limit protection that minimizes power loss due to over-current conditions.The TB7101AF (T5L1.8,F) is also equipped with under-voltage lockout and over-temperature protection. The device also includes a enable input pin that allows the device to be connected to a MOSFET or N-channel MOSFET switch.In conclusion, the TB7101AF (T5L1.8,F) is an integrated, synchronous, buck-boost DC/DC converter designed to provide high power efficiency and low noise operation. It is suitable for applications that require high current outputs, such as automotive, consumer electronics, and industrial power systems. The device features a wide input voltage range, fast transient response, output voltage settings of 1%, 5%, 10%, 20%, and 25%, as well as integrated protection features.

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