Part Number: TPS82085SILR

Manufacturer: Texas Instruments

Description: DC CONVERTER 0.8-6V

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of TPS82085SILR

Datasheet  TPS82085SILR datasheet
Category Integrated Circuits (ICs)
Family PMIC – Voltage Regulators – DC DC Switching Regulators
Manufacturer Texas Instruments
Series DCS-Control?
Packaging Tape & Reel (TR)
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage – Input (Min) 2.5V
Voltage – Input (Max) 6V
Voltage – Output (Min/Fixed) 0.8V
Voltage – Output (Max) 6V
Current – Output 3A
Frequency – Switching 2.4MHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case 8-LDFN Exposed Pad
Supplier Device Package 8-uSIP (3×2.8)

TPS82085SILR Introduction

MicroSiPTM modules that perform as 2-A/3-A step-down converters, such as the TPS82084/5, are making waves in the electronics market. These power modules are a great option for anyone trying to streamline their design, reduce the number of moving parts, or conserve PCB real estate because of their tiny solution size and high efficiency. Their small size and lightweight design make them ideal for automated assembly using commonplace surface mount equipment.

The converter is highly efficient since it runs in PWM mode at a nominal switching frequency of 2.4MHz and enters Power Saving Mode automatically at low load currents. With features like over-temperature protection and Hiccup short circuit protection, the TPS82084/5 is a safe and secure option. It also boasts good load transient performance. The TPS82084/5’s flexible design and robust capabilities make it an excellent choice for various systems, including radar, audio/video control systems, metro data centers, optical modules, and single-board computers. For those needing a high-performance step-down converter power module, the TPS82084/5 is an absolute must.

TPS82085SILR Description

The TPS82084/5 are MicroSiPTM modules with a 2-A/3-A step-down converter designed to minimize solution size while maximizing efficiency. A synchronous step-down converter and an inductor have been combined into a single power module to reduce the number of parts needed and the amount of real estate taken up on the printed circuit board. The compact design allows for easy automated assembly with common surface mount tools. The converter enters Power Saving Mode automatically at low load currents and operates in PWM mode with a nominal switching frequency of 2.4MHz.

Normally, the gadget draws 17 mA of quiescent current in Power Saving Mode. The device’s output voltage is accurately regulated, and it exhibits exceptional load transient performance thanks to the use of the DCS-Control topology. The EN and PG pins enhance the system’s adaptability, which allows for various sequencing setups. The inrush current drawn from the input supply is minimized because of the built-in soft starting. Protecting against overheating and the “Hiccup” phenomenon (a sudden and unexpected decrease in voltage) makes this a solid and trustworthy option.

TPS82085SILR Features

  • MicroSiPTM Low Profile Power Module.
  • topology for DCS-control.
  • 95% or more efficiency.
  • Operating quiescent current of 17 A.
  • operational temperature range of -40°C to 125°C.
  • short circuit protection for hiccups.
  • The range of input voltage is 2.5 to 6 volts.
  • the output voltage is variable from 0.8 V to VIN.
  • Power saving mode for effective light load usage.
  • The lowest dropout duty cycle is 100%.
  • The function of discharge of output.
  • output with power.

TPS82085SILR Applications

  • Optical module.
  • Single board computer.
  • Solid state drive.
  • Metro data center.
  • Audio/video control system.

TPS82085SILR Detailed Description

The DCS-ControlTM platform is used in the synchronous step-down converter power modules designated TPS82084/5 (Direct Control with Seamless transition into Power Save Mode). Hysteretic, voltage and current mode control are all rolled into one in this cutting-edge regulating architecture. The DCS-ControlTM topology utilizes Pulse Width Modulation (PWM) during moderate to high loads and Power Saving Mode (PSM) during light loads. Using PWM, the converter’s nominal switching frequency of 2.4 MHz is varied in frequency over the input voltage range.

To maintain high efficiency across a wide variety of load currents, the converter enters Power Saving Mode as the load current drops. DCS-ControlTM allows for a smooth transition from PWM to PSM utilizing a single building block with no change in output voltage. The device provides low output voltage ripple and excellent DC voltage regulation, allowing minimal RF circuit interference. It also provides excellent load transient regulation.

Feature Description

● Soft Startup

An integrated soft start circuit gradually increases the output voltage to the nominal voltage during a typical soft start time of 0.8ms. This prevents a sharp drop in output voltage at startup and minimizes inrush current. This feature is especially useful for primary cells and rechargeable batteries with a high internal impedance, as it prevents the cells’ voltage from dropping too far. This gadget can reliably start into a pre-biased output capacitor. Starting at the applied bias voltage, the device gradually increases the output voltage to its maximum.

● Switch Current

The device’s internal soft start circuit takes the output voltage from zero to the nominal voltage over a soft start time of about 0.8 milliseconds. Thus, the output voltage slope is flattened, and excessive inrush current is avoided. Primary cells and rechargeable batteries with a high internal impedance are protected from experiencing severe voltage drops. The gadget can start monotonically into an output capacitor that has already been biased. The output voltage is ramped up from the device’s initial value, the bias voltage, to its specified operating voltage.

● Undervoltage Lockout

The devices are disabled at input voltages below VUVLO (with a hysteresis of 200 mV) to prevent accidental operation at low voltages.

● Thermal Shutdown

If the junction temperature exceeds the TJSD, the device will enter thermal shutdown and halt switching. The device immediately resumes regular operation as the temperature drops below the threshold by 20 degrees Celsius.

Device Functional Modes

● Enable and Disable

Setting the EN pin to logic High activates the device (typically 0.8 V). As a result, a current of 0.7 A is drawn during shutdown when the EN pin is pulled Low (usually 0.7 V), which causes the device to enter shutdown mode. When the gadget is turned off, the output is slowly discharged through the VOUT pin by a 260 resistor. When thermal shutdown, under-voltage lockout, or short circuit protection are activated, the output discharge feature continues to operate normally. Once the input voltage reaches about 0.5V, the output discharge function will no longer operate. When the EN pin is set to Low, an internal pull-down resistor of 400 k is attached. When the EN pin is set to High, the pull-down resistor no longer has power.

● Power Good Output

The device produces power in a good (PG) form. If the output falls below 90% of the nominal voltage, the PG pin is driven low, and if it rises beyond 95%, it goes high impedance. The PG pin can drain up to 1 mA of current and is an open drain output. A pull-up resistor connected to a voltage rail lower than 6 V is needed for excellent power output. To sequence numerous rails, the PG signal can be wired to the EN pin of other converters.


In conclusion, the TPS82085SILR DC to-DC converter from Texas Instruments is essential for adjusting voltage levels in electronic devices. And with ICRFQ as your supplier, you can rest assured that you’ll receive top-quality products that are packaged safely for delivery and easy to mount upon arrival. With our excellent customer service, ICRFQ is the perfect partner for both personal and large-scale electronic projects. So why wait? Place your order today and discover the difference that quality components and exceptional service can make in achieving your goals.

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