NJU7650 Series
Step-Down switching regulator IC with Constant Current Control

Download Datasheet

  • Description

    The NJU7650 is a low voltage operation high-speed switching regulator control IC for step-down converter, with a constant current control. It incorporates a totem pole output, which can drive an external MOS-FET easily. It also incorporates error amplifier and current sense amplifier, which can allow the constant voltage/current control for output voltage. Therefore the NJU7650 is suitable for a LED driving, battery charger and other CCCV applications. The NJU7650 is available in a small and thin 8-lead MSOP (TVSP) package.

  • Spec
    Input Voltage Range 2.2 V to 8 V (9 V)
    Operating Temperature Range -40°C to 85°C
    Supply Current Typ. 800 µA
    Output Voltage Range 1 V to 7.5 V
    Output Voltage Accuracy ± 1 %
    Oscillator Frequency 300kHz to 1MHz
    Maximum Duty Cycle 100%
    Package MSOP8(TVSP8)
    Control PWM switching control
    Function Soft-Start Function Internal (Internal : 16ms typ. or adjustable)
    Dead Time Control
    Constant Current Control

    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)