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See Product Specifications for product details.
STEP DOWN CONVERTER
• 60-nA operating quiescent current
• 100% duty-cycle mode with 120-nA IQ
• Input voltage range VIN from 1.8 V to 6.5 V
• Output current up to 750 mA
• RF friendly DCS-Control™
• 80% efficiency at 1 µA IOUT (3.6 VIN to 1.8 VOUT)
• 16 selectable output voltages via VSET pin
• Auto transition PFM/PWM or forced-PWM mode
• Selectable forced PWM and STOP modes
• Output discharge function
• 25-nA shutdown current
• SON-8, WCSP-6 and thermally enhanced HVSSOP-8packages
• Smart meters, smart thermostats
• Asset tracking devices
• Wearable electronics
• Medical sensor patches and patient monitors
• Industrial IoT (smart sensors) / NB-IoT
• Test and measurement
• ATEX / Intrinsic safety
The TPS62840 is a high efficiency step-down converter with ultra-low operating quiescent current of typically 60 nA. The device contains special circuitry to achieve just 120 nA IQ in 100% mode to further extend battery life near the end of discharge.
The device uses DCS-Control to cleanly power radios and operates with a typical switching frequency of 1.8 MHz. In Power-Save Mode the device extends the light load efficiency down to a load current range of 1-μA and below.
16 predefined output voltages can be selected by connecting a resistor to pin VSET, making the device flexible for various applications with a minimum amount of external components.
The device’s STOP pin immediately eliminates any switching noise in order to take a noise-free measurement in test & measurement systems.
The TPS6284x provides an output current of up to 750 mA. With an input voltage of 1.8 V to 6.5 V, the device supports multiple power sources such as 2S to 4S Alkaline, 1S to 2S Li-MnO2 or
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