RP602 Series
1.5A PWM/VFM Buck-Boost DC/DC Converter with Synchronous Rectifier

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  • Description

    The RP602 is a 6.5 V (Max. rating) buck-boost DC/DC converter with synchronous rectifier. This device is ideally suited for industrial or OA equipment that require constant voltage even when low-input voltage (Min. 2.3 V). Since operating with switching frequency of 2.6 MHz, this device can realize a high-speed response with a small coil and maintain a high-efficiency at low input voltage.

    Key Benefits

    • Realize a high-efficiency at low input voltage.
    • Provide output voltage of 2.7 to 4.2 V corresponding to input voltage of 2.3 to 5.5 V.

  • Spec
    Input Voltage Range 2.3 V to 5.5 V (6.5 V)
    Operating Temperature Range -40°C to 85°C (125°C)
    Supply Current Typ. 27.5 µA (VFM Mode)
    Standby Current Typ. 0.1 µA
    Output Voltage Range 2.7 V to 4.2 V (0.1 V step)
    Output Voltage Accuracy ±1.5% (Ta = 25°C)
    Output Current Typ. 1.5 A
    Driver ON-resistance Typ. Pch. 80 mΩ, Nch. 80 mΩ
    Oscillator Frequency Typ. 2.6 MHz
    Package WLCSP-20-P1, DFN(PL)2730-12
    Line Regulation Typ. 0.5% (PWM Mode)
    Load Regulation Typ. 0.1% (IOUT = 0 mA to 500 mA, PWM Mode)

    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
    • Typical Application

      Typical Application

      L: 1.0 µH
      CIN : 10 µF
      COUT : 22 µF x 2

    • RP602Z330C Efficiency vs. Output Current (MODE=H)

      RP602Z330C Efficiency vs. Output Current (MODE=H)

    • Related Links

      • Prime Designer

        Online Design Tool

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

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  • 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

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Category:DC/DC Switching Regulators

Topology Buck-Boost
min (V)
max (V)
min (V)
max (V)