RP510 Series
4A Forced PWM Step-down DC/DC Converter with Synchronous Rectifier

  • Description

    The RP510 is a step-down DCDC converter that operates the low input voltage of 2.5 V to 5.5 V.

    The RP510 being suitable for power supply of SoC (System-on-chip) can be output to 4 A (Max.). And, the foldback type protection, which be released automatically from the overcurrent protection, is user-selectable.

    This product for industrial applications are characterized to -50°C, and operates in a wide temperature range from low temperature to high temperature.

    Key Benefits

    • The realization of the high-density mounting by the adoption of a small package DFN3030-12
    • A simplification of the power sequencing by power-good and adjustable soft-start functions
    • Selectable overcurrent protection: Latch type or Foldback type

  • Spec
    Consumer Industrial Automotive
    Input Voltage Range 2.5 V to 5.5 V (6.5 V)
    Operating Temperature Range -40°C to 85°C (125°C) -50°C to 105°C (150°C) -40°C to 125°C (150°C)
    -40°C to 105°C (150°C)
    Supply Current Typ. 800 µA
    Standby Current RP510LxxxG/H/J : Typ. 0.01 µA以下
    RP510LxxxN : Typ. 0.35 µA
    Output Voltage Range Internally Fixed Ver.: 0.8 V, 1.0 V, 1.1 V, 1.2 V, 1.3 V, 1.5 V, 1.8 V, 3.0 V, 3.3 V
    Externally Adjustable: 0.8 V to 3.3 V
    Output Voltage Accuracy ±1.0% (VSET ≥ 1.2 V, Ta = 25°C)
    ±12 mV (VSET < 1.2 V)
    Feedback Voltage Accuracy ±6 mV (VFB = 0.6 V)
    Output Current 4 A
    Driver ON-resistance Typ. 0.04 Ω (VIN = 3.6 V)
    Oscillator Frequency Typ. 2.3 MHz
    Maximum Duty Cycle Min. 100%
    Package DFN3030-12

    Protections / Functions

    TSD ILX OCP OVP UVLO OVLO Reverse Shutdown Soft Start SSCG PGOOD Auto Discharge Anti-ringing Sequencing Max Duty Ext. Phase LED Adjust
  • Technical
    • RP510L001J/1N/4J/4N Typical Application (Adjustable Output Voltage Type)

      RP510L001J/1N/4J/4N Typical Application (Adjustable Output Voltage Type)

    • Efficiency vs. Output Current

      Efficiency vs. Output Current

      VOUT=1.2V, VIN=3.3V/5.0V

    • Related Links

      • Prime Designer

        Online Design Tool

        Registration to myNISD is required to use some of the functions, such as simulations.

        • [V]
        • [V]
        • [V]
        • [A]
  • Quality &
    • Refer to the datasheets for the details on the product.
    • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

Download Datasheet

Functional Description

TSD Thermal Shutdown Function
ILX LX Current Limit Function
OCP Overcurrent Protection
OVP Overvoltage Protection
UVLO Undervoltage Lockout Protection
OVLO Overvoltage Lockout Protection
Reverse Reverse Current Protection Circuit
Shutdown Shutdown Function
Soft Start Soft Start Function
SSCG Spread Spectrum Clock Generator Function
PGOOD Power Good Output
Auto Discharge Auto Discharge Function
Anti-ringing Anti-ringing Switch Function
Sequencing Start-up Sequencing Control
Max Duty Maximum Duty Cycle
Ext. Phase Externally Adjustable Phase Compensation
LED Adjust LED High-speed Dimming Control

Search for similar products under conditions below.

Category:DC/DC Switching Regulators

Topology Buck
min (V)
max (V)
min (V)
max (V)