TLV62569PDRLT Integrated Circuits (ICs)

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TLV62569PDRLT is a highly integrated DC-DC Switching regulator with high speed response and accurate current and voltage stabilization. It is designed for automotive and industrial applications and is capable of managing power supplies for car/truck/satellite systems and household/automotive sensing/automatic control systems. It also functions as a low-noise, low ripple and high speed preferred replacement for older linear regulator designs.

Features of TLV62569PDRLT

• High speed response with a switching frequency of up to 1 MHz
• High accuracy current and voltage stabilization
• Two-phase operation
• Over voltage and over current protection
• Programmable output voltage
• Low ripple and noiseless
• High efficiency
• Built-in biasing and gate drive
• Wide operating temperature range of -40°C to +105°C

Application Areas of TLV62569PDRLT

TLV62569PDRLT is suitable for a wide range of applications such as automotive, industrial, telecom ,consumer and healthcare. Automotive applications include voltage and current control for car audio systems and sensor modules, lighting modules and general purpose power supplies. Telecom applications include supply voltage regulation and stable current feed, critical signal processing and output filtering. Industrial applications include power management and thermal control systems, voltage regulators, UPS systems and server deployment. Consumer applications include lithium-ion battery management and LCD/LED display/panel power supply. Healthcare applications include medical imaging, patient monitoring and medical diagnostic systems.

Power Path and Working Principle of TLV62569PDRLT

The TLV62569PDRLT is a 2-phase switched-mode DC-DC converter. It utilizes two sets of P and N-channel MOSFETs, one set placed in series and the other parallel to the primary winding, to provide continuous current conduction through the primary winding of the transformer. Its boost or buck-and-boost transitions are achieved by controlling the active switches, an integrated pulse width modulation controller and programming the output voltage.

A power switch is driven by an on-chip Pulse Width Modulation (PWM) controller to modulate the primary current. The current path is through the MOSFETs, primary winding, and reflected secondary winding. A voltage-mode control utilizes a voltage feedback amplifier and compares the sensed voltage with a reference voltage input. The resulting error signal is used to change the duty cycle of the drive signal, which in turn controls the output voltage. The architecture results in high efficiency and superior load-transient response.

On Chip Protection of TLV62569PDRLT

TLV62569PDRLT has integrated overvoltage protection (OVP) and overcurrent protection (OCP) to prevent device damage from abnormal conditions. The OVP function is triggered when the output voltage exceeds the OVP threshold and the OCP is triggered when the output current exceeds the pre-programmed current limit. If an overvoltage or over-current event occurs, the switching activity of the device is disabled immediately and it will remain in a low-power standby mode until the fault condition is removed.

Conclusion

TLV62569PDRLT is an ideal DC-DC switching regulator with high speed response and accurate current and voltage stabilization, making it suitable for a wide range of applications such as automotive, industrial, telecom, consumer and healthcare. Its integrated protection features, wide operating temperature range and small package size make it an attractive solution for those looking for a high performance, reliable and cost-effective system.

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