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TinyPower™ 200mA Synchronous Step-Up Converter

12/11/2021

New high efficiency synchronous step-up converter product series, the HT77xxFA. This series of devices are suitable for use in remote control products, wireless mice, blood glucose meters, electric clippers and thermo-hygrometers. The integrated Schottky diode will reduce layout area, which is a great benefit in small scale mobile devices.

This new range of devices have a supply current of 4µA, a standby current of 6µA and a high efficiency rating of up to 95%, making the devices suitable for battery powered products. Battery types could be Li-ion batteries, button-cell batteries and Alkaline batteries, etc. For single-cell Alkaline batteries and super capacitor applications, the hold-on voltage of 0.25V and the startup voltage of 0.85V provides a higher level of endurance when compared with other solutions. With regard to system power, these devices provide a low ripple and high-regulation output voltage, making them suitable for sensors, screen displays and wireless ICs. In addition, the devices have excellent reliability due to their strong ESD resistance, allowing customers to reduce the production line malfunction rate.

The HT77xxFA devices are available in 3-pin SOT23, 5-pin SOT23 and 3-pin SOT89 package types. For the SOT23-5 package, it includes a CE control pin to allow the master MCU to control the device.

Main Features

  • Ultra low supply current : 4μA
  • Low ripple and low noise
  • High efficiency up to 95%
  • Fixed output voltage: 2.7V, 3.0V, 3.3V, 3.7V, 5.0V
  • High output voltage accuracy: ±2%
  • Output current: Up to 200mA @ 0.6×VOUT≤VIN≤VOUT
  • Low shutdown current: 0.1μA (Typ.)
  • Package types: 3-pin SOT89, 3-pin SOT23 and 5-pin SOT23
Documents Tech question
Holtek HT77xx FA

TinyPower™ 200mA Synchronous Step-Up Converter

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Holtek

Holtek Semiconductor is a leading professional IC design house in Taiwan having its major business activities focused in the area of microcontroller and peripheral component design.

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Documents

  • Holtek HT77xx F Av100 Datasheet
Pexels thisisengineering 3913017

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