NJU7632 Series
Step-Down switching regulator IC with standby function

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  • Description

    The NJU7632 is a low voltage operation high-speed switching regulator control IC for step-down converter, with a standby function. It incorporates a totem pole output, which can drive an external MOS-FET easily. The NJU7632 also has a soft-start function, dead time control and timer latch for short circuit protection and their times are all adjustable with external parts. Further the internal standby function minimize the current during non-active condition. It is available in a small and thin 8-lead MSOP (TVSP) package, and it is suitable for battery powered applications.

  • 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
    Standby Current 1 (max.) 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 Standby Function
    Soft-Start Function (Internal :16ms typ. or adjustable)
    Timer Latch for Short Circuit Protection
    Dead Time 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
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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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