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NR117K
Package : HSOP8
RoHS : YES
The NR117K is buck converter IC that integrates the power MOSFET. With the current mode control, ultra low ESR capacitors such as ceramic capacitors can be used.
The IC has protection functions such as the overcurrent protection, undervoltage lockout, and thermal shutdown).
An adjustable Soft-Start by an external capacitor prevents the excessive inrush current in startup.
The feature increasing efficiency at light loads allows the device to be used in the energy-saving applications.
The IC integrates phase compensation circuit which reduces the number of external components and simplifies the design of customer application.
The IC has the EN pin that turns the regulator on or off, and achieves low power consumption requirements.
The package is the HSOP8 with an exposed thermal pad on the back side.
Data Download
Design Support
- Technical Documents
Technical Documents
Features
- Up to 87% Efficiency
(VIN = 12 V, Vo = 5 V, Io = 0.3 A) - Up to 68% Efficiency at Maximum at Light Load
(VIN = 12 V, Vo = 5 V, Io = 10 mA) - Current mode PWM control
- Stable with Low ESR Ceramic Output Capacitors
- No External Components Required by Incorporating Phase Compensation
- Soft-start Function
Adjustable Soft-start time with an External Capacitor - External ON/OFF Function
- Frequency: 30 kHz (EMI considered)
- Protection Functions:
Overcurrent Protection (OCP): Drooping, auto-restart
Thermal Shutdown (TSD): Auto-restart
Undervoltage Lockout (UVLO)
Application
- Audio Visual Equipment
- Auxiliary Power Supply
Specifications
Built-in Power | Power IC |
---|---|
Output Method | Variable |
Output Voltage | 24.0 V |
Output Current | 1.5 A |
Input Voltage Range | 8.0 to 31 V |
Operating Frequency | 30 kHz |
Synchronous / Asynchronous | Asynchronous |
Current Mode Control | YES |
Maximum Input Voltage | 31.00 V |
Output On / Off | YES |
Low ESR Capacitor Support | YES |
Overcurrent Protection | Drooping Type |
Phase Compensation | Built-in |
Thermal Protection | YES |
UVLO | YES |
Package Weight (Typ.) | 0.081 g |
Automotive Qualified | NO |
Typical Application
Block Diagram
Questions or Comments?
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