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Nisshinbo RP124 Low Supply Current LDO Regulators

Nisshinbo RP124 Low Supply Current LDO Regulators with a battery monitor offer an ultra-low current consumption of only 0.3μA at no-load, extending the life of battery-powered devices. The RP124 series requires only three external capacitors, making it ideal for space-saving mounting in smaller packages. The regulators use a built-in resistor divider and voltage follower as a buffer instead of using an external resistor divider and MOSFET connected to an A/D converter. This design creates a circuit with a lower current flow to the ground, and the output is compatible with the input impedance of the A/D converter. All essential components for this circuit are integrated into the chip to save space.

Using the output current demand of the application, the RP124 switches automatically between the low power consumption and the fast transient response mode. The RP124 regulators provide enhanced performance in fast transient response mode. The CE pin offers a disable function to disable the LDO regulator or voltage monitor circuit.

Nisshinbo RP124 Low Supply Current LDO Regulators are available in two packages standard SOT-23-5 or compact DFN1212-6.

Features

  • Low 0.3µA supply current for longer battery life and downsizing
  • Requires only 3 external capacitors and suitable for space-saving mounting for smaller packages
  • 1.7V to 5.5V input voltage range
  • 0.2μA typical supply current
  • ±0.8% output voltage accuracy
  • 100mA output current
  • 1.0 μF or more ceramic capacitor compatible

Applications

  • Battery-powered IoT devices
  • Low-power wireless communication modules, including BLUETOOTH® Low Energy, Zigbee®, and LPWA
  • Energy harvesting devices
  • Low-power consumption CPUs, memories, and sensors

Videos

Block Diagram

Block Diagram - Nisshinbo RP124 Low Supply Current LDO Regulators
Published: 2018-11-21 | Updated: 2023-03-22