HG8805M5/TR

The HG805 series is a low-dropout linear regulator. This device is designed specifically for battery-operated systems. Its ground current is very small - 50 A (typ.) that significantly extends the battery life. The low power consumption and high accuracy are achieved through CMOS and programmable fuse technologies. It is possible to extend the output voltage range from 1.2V to 6.0V. The AME8805 consists of a high-precision voltage reference, an error-correction circuit, and a current-limited output driver. With good transient responses the device output remains stable even when the load changes. The EN (Shutdown) input enables the output to be turned off resulting in reduced power consumption. The HG8805 can stably work with cheap MLCC output capacitors. Owing to high ripple rejection ratios, the AME8805 series can be used in the case of a power supply with noise. A 470pF capacitor from the BP (bypass) input to the ground reduces the noise, which is present on the internal reference, and that, in turn, significantly reduces the output noise. If that noise is not a concern, the said input may be left unconnected. Larger CBP capacitor values may be used, but that extends a time period until the rated output voltage is reached after the power has been initially applied. 805 incorporates both over-temperature and over-current protec The small packages - SOT23-5 (300mW) and SOT-89 (500mW) - are usable too.

Applications

• Battery-operated systems
• Portable computers
• Portable cameras and video recorders
• Reference voltage sources
• Instrumentation
• Pagers

Key features

• Maximum output current 600mA
• Highly accurate output voltage: +/-1.5%
• Low power consumption
• On-chip protections: thermal, short-circuit
• Small input/output differential: 600mV at 600mA
• Adjustable version