NJM2340 Series
High Precision DC/DC Converter Control IC

Download Datasheet

  • Description

    The NJM2340 is a high precision DC/DC converter control IC with a current sense amplifier. It offers a low side current sensing which offers a DC/DC converter application with a few external parts and minimum error. The NJM2340 has a high input voltage and is available in small surface mount packages, an 8-lead DMP and MSOP (TVSP). Therefore it is well-suited for various applications.

  • Spec
    Input Voltage Range 3.6 V to 32 V (36 V)
    Operating Temperature Range -40°C to 85°C
    Supply Current Typ. 5500 µA
    Output Voltage Range 1 V to 30 V
    Output Voltage Accuracy ± 1 %
    Oscillator Frequency 20kHz to 500 kHz
    Maximum Duty Cycle Duty Cycle (0% to 100%)
    Package DMP8
    Control PWM switching control
    Note Current Sensing Amplifier

    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
    • 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)