TPS82150SILR CONVERTER

TPS82150SILR Description

TPS82150 MicroSiPTM power module is a 17-V input 1-A step-down converter optimized to reduce solution size while maintaining high efficiency. The module combines a synchronous step-down converter and an inductor to facilitate development, reduce the number of components, and save space on the printed circuit board. Because of its compact form factor, standard surface mount automation equipment can be used for assembly. At low load currents, the converter automatically switches to Power Saving Mode, operating in PWM mode at a nominal switching frequency of 2.0 MHz. With Power Saving Mode enabled the device’s idle current drops to about 20 A. The device’s output voltage can be fine-tuned under load thanks to the DCS-ControlTM architecture employed in the design.

TPS82150SILR Features

• Tiny MicroSiPTM Packaging (measuring 3mm x 2.80mm x 1.50mm).
• Variable Input Voltage from 3.0V to 17V.
• Constant Current Output of 1 A.
• DCS-ControlTM Architecture.
• Light Load Efficiency Power Saving Mode.
• The Idle Current of a 20-A Machine.
• Output Voltage is Variable from 0.9V to 6V.
• To minimize dropouts, a 100% duty cycle is recommended.
• Powerful Results.
• Tracking and programmable soft startup.
• Safe-Temperature Shutdown Mechanism.
• The TPS82130 and TPS82140 are plug-and-play compatible.

TPS82150SILR Applications

• Industrial Applications.
• Telecom and Networking Applications.
• Solid State Drives.
• Inverting Power Supply.

TPS82150SILR Detailed Description

A MicroSiPTM power module based on DCS-ControlTM, the TPS82150 synchronous step-down converter (Direct Control with Seamless transition into Power Save Mode). It’s a cutting-edge regulation topology that takes the best features of hysteretic and voltage-mode control and mixes them. For medium to high loads, the DCS-ControlTM topology switches to Pulse Width Modulation (PWM) mode, and for low loads, it switches to Power Saving Mode (PSM). Switching at a nominal 2.0 MHz, the converter’s switching frequency varies systematically over the input voltage range when in PWM mode.

The converter enters Power Saving Mode as the load current drops to maintain high efficiency throughout a wide range of load currents. In this mode, the switching frequency is decreased, and the IC’s quiescent current is kept to a minimum. DCS-ControlTM allows for a smooth transition from PWM to PSM utilizing a single building block with no change to the output voltage. The TPS82150 has minimal output voltage ripple and is highly efficient at regulating DC voltage and transients under load, making it ideal for RF applications.

Feature Description

Capacitor Current Limit Switch To protect the battery or input voltage rail from being overloaded, the switch current limit limits the amount of current that can flow through the inductor. Under conditions of high output load or output circuit short, excessive current may flow. After a propagation delay of around 30ns, the high-side FET is turned off, and the low-side FET is turned on to ramp down the inductor current if the peak current in the inductor reaches the switch current limit.

● Undervoltage Lockout

An under-voltage lockout, with a hysteresis of 200mV, is implemented to prevent the device from operating incorrectly at input voltages below VUVLO.

● Thermal Shutdown

After the junction temperature reaches TJSD, the device enters thermal shutdown and ceases switching. The device immediately resumes regular operation as the temperature drops below the threshold by 20 degrees Celsius.

Device Functional Modes

● Enable and Disable (EN)

To activate the component, set the EN pin to logic High. Therefore, a current of about 1.5 A is required to force the shutdown state when the EN pin is pulled Low. When the EN pin is Low, a pull-down resistor with a value of 400k is attached to it. When the EN pin is set to High, the pull-down resistor is no longer connected.

● Soft Startup (SS/TR)

The output voltage slope at startup is regulated by the internal voltage clamp. This prevents uncontrolled surges in output voltage and inrush current. After a delay of around 55 ms, when the EN pin is pulled high, the device begins switching, and the output voltage climbs at a slope determined by an external capacitor linked to the SS/TR pin. A tiny capacitor or leaving the SS/TR pin floating results in the quickest startup time.

The output capacitor of the TPS82150 can be pre-biased for an immediate start. Both power MOSFETs are disabled during the pre-biased startup phase until the output voltage is clamped to a level above the pre-bias voltage. A capacitor linked to the SS/TR pin is depleted by an internal resistor whenever the device enters shutdown, Undervoltage lockout, or thermal shutdown. A brand-new startup sequence begins when you exit one of those states and restart.

● 4 Power Good Output (PG)

The unit generates a satisfactory amount of electricity or PG. As the output voltage rises above 95% of the nominal voltage, the PG pin becomes high impedance, and as it falls below 90% of the normal voltage, it is driven low. The PG pin is a sinking open drain output capable of discharging up to 2mA. A pull-up resistor is needed to connect the power good output to a rail with a voltage lower than 6V.

Application Information

Component choice determines the TPS82150’s output voltage. In the following part, we’ll look at how to design the power supply’s exterior components for various input and output voltages with common software in mind.

Conclusion

To sum up, the TPS82150 MicroSiP™ power module is an excellent choice for various applications such as industrial, telecom, and networking industries. Its compact size and highly efficient DCS-Control™ topology ensure accurate output voltage regulation and exceptional load transient performance, while its Power Save Mode feature guarantees high efficiency even at light load currents. Additionally, this power module comes with essential protection features such as switch current limit, undervoltage lockout, and thermal shutdown, making it a reliable and safe choice for any design.

With its programmable soft startup and compatibility with other TPS821xx modules, the TPS82150 is an easy-to-use and versatile solution that reduces external components and PCB area. Moreover, ICRFQ, a trusted supplier of top-quality products, offers excellent customer service to ensure you get the best experience with your purchase.

In conclusion, upgrading your power system with the TPS82150 from ICRFQ will provide you with a high-quality, dependable component that meets the requirements of many different applications. Choose the TPS82150 MicroSiP™ power module today and experience the benefits of its advanced technology and reliability.

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