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NJU7690 Series
High Efficiency Synchronous Step-Down switching regulator IC

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ECAD Model: Learn more
  • Standard
  • RoHS
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Description

The NJU7690 is a high efficiency synchronous step-down switching regulator control IC. It offers high efficiency power supply circuits in applications by synchronous rectification. The NJU7690 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. It is available in a small and thin 10-lead MSOP(TVSP) package. It is suitable for battery powered applications.

Spec

Standard
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%
Control PWM switching control
Function Soft-Start Function (Internal : 16ms typ. or adjustable)
Timer Latch for Short Circuit Protection
Dead Time Control
Note Synchronous Rectification

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

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

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)		 2.2
VIN
max (V)		 8
VOUT
min (V)		 1
VOUT
max (V)		 7.5
ISS
(µA)		 800

Technical Documents

  • Related Links

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Quality & Packages

Product Name Compatibility Package Marking Reliability
NJU7690RB2
  • gradeConsumer
 MSOP10(TVSP10) - NJU-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.

FAQ

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Buy / Contact

  • Purchase, Request for samples and documents
    Sales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
  • Available from 1 piece!
    Our electronic device products are available through our authorized online distributors.
  • Technical Support
NJU7690 Series