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NJM2393 Series
Step-Down PWM DC/DC Converter IC

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  • Description

    The NJM2393 is a step down PWM DC/DC converter IC.An internal 1.5A power transistor, a pulse-by-pulse current limit circuit and a 1% precision reference make the NJM2393 suitable for a wide range of step down applications.The NJM2393 features 100% maximum duty cycle for low voltage drop operation.

  • Spec
    Consumer
    Input Voltage Range 3 V to 40 V (40 V)
    Operating Temperature Range -40°C to 85°C
    Supply Current Typ. 2800 µA
    Output Voltage Range 1.25 V to 38 V
    Output Voltage Accuracy ± 1 %
    Output Current 1500 mA
    Oscillator Frequency 1kHz to 150kHz
    Maximum Duty Cycle 100%
    Package DIP8
    DMP8
    Control PWM switching control
    Note Internal High Power Transistor (1.5A max.)
    Internal Over Current Limit Circuit
    Download Datasheet

    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
    Functional Description
  • Technical
    Documents

    • 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 &
    Packages
    Product Name Compatibility Package Marking Reliability
    NJM2393D
    • gradeConsumer
    		 DIP8 - NJM-t
    NJM2393M
    • gradeConsumer
    		 DMP8 - NJM-1-s-fr
    • 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.
  • Sample / Buy
Similar Products

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
VIN
min (V)		 3
VIN
max (V)		 40
VOUT
min (V)		 1.25
VOUT
max (V)		 38
IOUT
(mA)		 1500
ISS
(µA)		 2800