TLV70728PDQNR

Current - Output:	200mA
Base Part Number:	TLV70728
Supplier Device Package:	4-X2SON (1x1)
Package / Case:	4-XDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Short Circuit, Reverse Polarity
Control Features:	Enable
PSRR:	70dB ~ 50dB (100Hz ~ 1MHz)
Current - Quiescent (Iq):	50µA
Series:	--
Voltage Dropout (Max):	0.3V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.8V
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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TLV70728PDQNR is a voltage regulator and switch-mode power supply (SMPS) designed for use in notebook and server applications. The device combines a buck converter, linear regulators, and an over-voltage/over-current protection circuit into a single package.

Introduction

The TLV70728PDQNR is a versatile voltage regulator and switch-mode power supply (SMPS) designed for use in notebook and server applications. The device combines a buck converter, linear regulators, and an over-voltage/over-current protection circuit into a single package. It is designed to provide low-noise power conversion with superior efficiency and has a wide input voltage range. The device also features voltage monitoring, thermal protection, and a current limit.The TLV70728PDQNR is supplied in an 8-lead ThinQ!™ PowerPAK® VF package, requiring minimal board space and optimized radio-frequency (RF) performance. This device is ideal for applications such as notebook and server power supplies, embedded safety-critical systems, and PCI Express hot plugging.

Features and Benefits

The TLV70728PDQNR offers numerous benefits, including:• Low output noise• Low power consumption• Wide input voltage range (4.5V to 25V)• Output voltage adjustable within a ±10% range• Output current limiting• Internal thermal protection• Soft-start and tracking of the output voltage• Current monitoring• ESD protection• Thermal shutdown

Application Field

The TLV70728PDQNR is well-suited for notebook and server applications, as well as embedded safety-critical systems, such as critical medical applications, where continuous low-noise power operation is key. This device can also be deployed in PCI Express hot plugging operations.

Working Principle

The TLV70728PDQNR is an integrated buck-boost converter, voltage regulator, and current limiter. It operates at fixed frequencies with a light load to maintain the output voltage within a specified range. The device provides the required stability and current limiting under varying load conditions.The TLV70728PDQNR operates as a buck-boost converter in boost mode. In this mode, the output voltage is coupled with the input voltage and can be adjusted by varying an external resistor. When the input voltage falls below the output voltage, the device switches to a buck mode and the output voltage is regulated by the boost converter.The device also features tracking and soft-start features, providing a stable output voltage under varying input and output voltages. Additionally, the device features output current limiting and thermal protection, ensuring that the device operates safely at all times.

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