New Original Integrated Circuit TPS63070RNMR

short description:

The TPS6307x is a high efficiency, low quiescent current buck-boost converter suitable for applications where the input voltage can be higher or lower than the output voltage. Output currents can go as high as 2 A in boost mode and in buck mode. The buck-boost converter is based on a fixed frequency, pulse-widthmodulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over a wide load current range. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is available in a 2.5 mm x 3 mm QFN package.

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Product Detail

Product Tags

Product Attributes

TYPE	DESCRIPTION
Category	Integrated Circuits (ICs) PMIC - Voltage Regulators - DC DC Switching Regulators
Mfr	Texas Instruments
Series	-
Package	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®
Product Status	Active
Function	Step-Up/Step-Down
Output Configuration	Positive
Topology	Buck-Boost
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	2V
Voltage - Input (Max)	16V
Voltage - Output (Min/Fixed)	2.5V
Voltage - Output (Max)	9V
Current - Output	3.6A (Switch)
Frequency - Switching	2.4MHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount
Package / Case	15-PowerVFQFN
Supplier Device Package	15-VQFN-HR (3x2.5)
Base Product Number	TPS63070
SPQ	3000/pcs

Introduction

A switching regulator (DC-DC converter) is a regulator (stabilized power supply). A switching regulator can convert input direct current (DC) voltage to the desired direct current (DC) voltage.
In an electronic or other device, a switching regulator takes the role of converting the voltage from a battery or other power source to the voltages required by subsequent systems.

As the illustration below shows, a switching regulator can create an output voltage (V_OUT) that is higher (step-up, boost), lower (step-down, buck) or has a polarity different than that of the input voltage (V_IN)
Switching regulator characteristics

The following provides a description of non-isolated switching regulator characteristics.

High efficiency

By turning a switching element ON and OFF, a switching regulator enables high-efficiency electricity conversion as it supplies the required amount of electricity only when needed.
A linear regulator is another type of regulator (stabilized power supply), but because it dissipates any surplus as heat in the voltage conversion process between VIN and VOUT, it is not nearly as efficient as a switching regulator.
A linear regulator is another type of regulator (stabilized power supply), but because it dissipates any surplus as heat in the voltage conversion process between VIN and VOUT, it is not nearly as efficient as a switching regulator.

Noise

The switching element ON/OFF operations in a switching regulator cause sudden changes in voltage and current, and parasitic components that generate ringing, all of which introduce noise in the output voltage.
Using an appropriate board layout is effective in mitigating noise. For instance, optimizing the placement of capacitor and inductor and/or wiring. For more information on the mechanism of how noise (ringing) is generated and how it is controlled, refer to the Application Note “Step-Down Switching Regulator Noise Countermeasures.”

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