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TPSM82843

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275nA IQ, 0.4V to 3.6V selectable VOUT, 600mA step-down converter module with integrated inductor

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Type Module Iout (max) (A) 0.6 Vin (min) (V) 1.8 Vin (max) (V) 5.5 Vout (min) (V) 0.4 Vout (max) (V) 3.6 Switching frequency (min) (kHz) 1500 Switching frequency (max) (kHz) 1500 Features 1% accuracy, Enable, Light load efficiency, Output discharge, Over Current Protection, Pre-Bias Start-Up, Synchronous Rectification Control mode DCS-Control Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 125 Type Module Iout (max) (A) 0.6 Vin (min) (V) 1.8 Vin (max) (V) 5.5 Vout (min) (V) 0.4 Vout (max) (V) 3.6 Switching frequency (min) (kHz) 1500 Switching frequency (max) (kHz) 1500 Features 1% accuracy, Enable, Light load efficiency, Output discharge, Over Current Protection, Pre-Bias Start-Up, Synchronous Rectification Control mode DCS-Control Duty cycle (max) (%) 100
UNKNOWN (VCF) 7 See data sheet
  • 1.8V to 5.5V input voltage range
  • 0.4V to 3.6V output voltage range
  • 600mA output current
  • Output discharge
  • 275nA typical quiescent current, 4nA shutdown
  • Zero losses from eliminating output divider
  • 1% accurate voltage selection with single resistor on VSET-pin
    • TPSM828436: 0.4V to 0.8V
    • TPSM828437: 0.8V to 1.8V
    • TPSM828438: 1.8V to 3.6V
  • Cost and size optimized passive components
    • Down to 4.7µF CIN and COUT
    • 0402 and 0201 capacitors supported
  • Low output voltage ripple in power save mode
  • RF-friendly and fast transient DCS-Control
  • Automatic transition to no ripple 100% mode
  • Small QFN package with 2.45mm × 2.70mm × 1.27mm
  • 1.8V to 5.5V input voltage range
  • 0.4V to 3.6V output voltage range
  • 600mA output current
  • Output discharge
  • 275nA typical quiescent current, 4nA shutdown
  • Zero losses from eliminating output divider
  • 1% accurate voltage selection with single resistor on VSET-pin
    • TPSM828436: 0.4V to 0.8V
    • TPSM828437: 0.8V to 1.8V
    • TPSM828438: 1.8V to 3.6V
  • Cost and size optimized passive components
    • Down to 4.7µF CIN and COUT
    • 0402 and 0201 capacitors supported
  • Low output voltage ripple in power save mode
  • RF-friendly and fast transient DCS-Control
  • Automatic transition to no ripple 100% mode
  • Small QFN package with 2.45mm × 2.70mm × 1.27mm

The high efficiency TPSM82843x step-down converter family supports an ultra-low typical operating quiescent current of 275nA and a typical shutdown current of only 4nA. The inductor is integrated into the QFN package improving ease of use and reducing the bill of material down to only three passive components.

The RF-friendly device uses DCS-Control for a low output voltage ripple. The device is designed to power wireless applications like Wi-Fi or Bluetooth. The device switches at 1.5MHz and has high efficiency even at light load current down to 10µA for long battery life and easy thermal management. Humidity, temperature or vibration have no influence on the output voltage accuracy due to the integrated feedback divider. Therefore, the device is also an excellent choice for industrial point of load applications.

18 pre-defined output voltages per part number with 1% accuracy selected through a 1% resistor on the VSET pin support a large variety of applications.

The high efficiency TPSM82843x step-down converter family supports an ultra-low typical operating quiescent current of 275nA and a typical shutdown current of only 4nA. The inductor is integrated into the QFN package improving ease of use and reducing the bill of material down to only three passive components.

The RF-friendly device uses DCS-Control for a low output voltage ripple. The device is designed to power wireless applications like Wi-Fi or Bluetooth. The device switches at 1.5MHz and has high efficiency even at light load current down to 10µA for long battery life and easy thermal management. Humidity, temperature or vibration have no influence on the output voltage accuracy due to the integrated feedback divider. Therefore, the device is also an excellent choice for industrial point of load applications.

18 pre-defined output voltages per part number with 1% accuracy selected through a 1% resistor on the VSET pin support a large variety of applications.

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Technical documentation

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Type Title Date
* Data sheet TPSM82843x 1.8V to 5.5V, 600mA, 275nA IQ , High Efficiency Step-Down Converter With Integrated Inductor in QFN Package datasheet PDF | HTML 24 Sep 2024
Certificate TPSM82843678EVM057 EU Declaration of Conformity (DoC) (Rev. A) 20 Sep 2024

Design & development

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Evaluation board

TPSM82843678EVM-057 — TPSM82843x evaluation module

The TPSM82843x evaluation module (EVM) facilitates the evaluation of the TPSM82843x family of 600-mA, step-down converter power modules with 275-nA IQ in 2.45mm × 2.65mm x 1.27mm QFN packages. The EVM contains three separate circuits to create output voltages between 0.4V and 3.6V from higher input (...)

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UNKNOWN (VCF) 7 Ultra Librarian

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