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Nisshinbo RP132x LDO Regulators

Nisshinbo RP132x LDO Regulators come with a built-in low ON-resistance transistor and 1A output current capability. These ICs feature fixed output voltage and externally adjustable output voltage types. The minimum output voltage can be set from 1.4V. These Nisshinbo ICs include a voltage reference unit, an error amplifier, a resistor net for setting output voltage, current-limit circuits to prevent over-current, and a thermal-shutdown circuit. A standby mode with ultra-low supply current can be realized with the chip enable function. Additionally, the E/F version offers a delay pin for the inrush current limit time setting. The packages for these ICs are a small DFN(PLP)1820-6 (for high-density mounting), SOT-89-5, HSOP-6J, and TO-252-5-P2 for high wattage.

Features

  • Low ON-resistance
  • Thermal protection
  • Small and high-wattage packages

Specifications

  • 1A minimum output current
  • 65µA (typical) supply current
  • 0.15µA (typical) standby current
  • 1.4V to 6.5V wide input voltage range
  • Output voltage range:
    • 0.8V to 5.5V (0.1V steps) fixed output voltage type
    • 0.8V to 5.5V adjustable output voltage type
  • 0.52V (VOUT=2.8V, IOUT=1A) (typical) dropout voltage
  • 70dB (f=1kHz, VOUT=2.8V) (typical) ripple rejection
  • ±1% output voltage accuracy
  • Ceramic capacitors are recommended (≥2.2μF (VOUT≤3.6V) ,≥4.7μF (VOUT>3.6V))
  • 500mA (typical) inrush current limit circuit
  • 500μs inrush current limit time (B/D version)
  • adjustable inrush current limit time (E/F version)
  • 250mA typical (current at short mode) fold-back protection circuit
  • With auto discharge function (D, F version)
  • ±60ppm/°C (typical) output voltage temperature-drift coefficient
  • 0.052%/V (typical) line regulation
  • 3mV at IOUT=300mA (typical) and 5mV at IOUT=1A (typical) load regulation
  • DFN(PLP)1820-6, SOT-89-5, HSOP-6J, and TO-252-5-P2 packages

Applications

  • Electrical appliances
    • Cameras
    • VCRs
    • Camcorders
  • Power source for portable battery-powered equipment
  • Home appliances
  • Notebook PCs

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Published: 2020-11-03 | Updated: 2026-01-20