RP604 Series
0.3µA IQ Low Quiescent Current 300mA Buck-Boost DC/DC Converter with Synchronous Rectifier

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  • Description

    The RP604 is a buck-boost converter featuring a minimum supply current and a high efficiency at low-load. The device operates at the low operating quiescent current (IQ = 0.3 µA) to make the most of battery life for the battery driver operated intermittently.

    Key Benefits

    • The low supply current (IQ = 0.3 μA) can achieve making battery life longer and battery’s size-reduction.
    • Wide range of input voltage (1.8 V to 5.5 V) can support for every batteries from a coin-type battery to a USB port.
    • Selectable package: WLCSP-20-P2 or DFN(PL)2730-12

  • Spec
    Input Voltage Range 1.8 V to 5.5 V (6.5 V)
    Operating Temperature Range -40°C to 85°C (125°C)
    Standby Current Typ. 0.01 µA
    Operating Quiescent Current Typ. 0.3 µA
    Output Voltage Range 1.6 V to 5.2 V (0.1 V step)
    Output Voltage Accuracy ±1.5% (Ta = 25°C)
    Output Current 300 mA
    Driver ON-resistance PMOS: Typ. 0.12 Ω, NMOS: Typ. 0.12 Ω (RP604Z, VIN = 3.6 V)
    Package WLCSP-20-P2, DFN(PL)2730-12

    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
    • Typical Application

      Typical Application

      CIN : 10 µF or more, COUT : 22 µF, L: 2.2 µH

    • Efficiency vs. Output Current (VOUT = 3.3 V)

      Efficiency vs. Output Current (VOUT = 3.3 V)

    • 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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