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NJU7601 Series
Step-Up/Flyback Switching Regulator IC with Power Saving PWM/PFM control

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Description

The NJU7601 is a low voltage operation high-speed switching regulator control IC for step-up and fly-back converter, with PWM/PFM switching control. It can improve a switching efficiency on light load with automatically changing between PWM and PFM controls, and incorporates a totem pole output, which can drive an external MOS-FET easily. The NJU7601 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 8-lead DMP and MSOP (TVSP) packages. 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
Output Voltage Range 2.2 V to - V
Output Voltage Accuracy ± 1.5 %
Oscillator Frequency 300kHz to 1MHz
Maximum Duty Cycle 90% typ.
Package DMP8
MSOP8(TVSP8)
Control Automatic PWM/PFM Control
Function Soft-Start Function Internal (16ms typ. or adjustable)
Timer Latch for Short Circuit Protection
Dead Time Control

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 Boost,Fly-Back
VIN
min (V)		 2.2
VIN
max (V)		 8
VOUT
min (V)		 2.2
ISS
(µA)		 800

Technical Documents

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Quality & Packages

Product Name Compatibility Package Marking Reliability
NJU7601M
  • gradeConsumer
 DMP8 - NJU-1-s-fr
NJU7601RB1
  • gradeConsumer
 MSOP8(TVSP8) - 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

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    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
NJU7601 Series