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NR131S

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Package : SOIC8

RoHS : YES

Data Sheet(871KB)
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NR131S is a switching regulator IC with built-in power MOSFET.
Supports ultra low ESR capacitor including ceramic capacitors, using current mode control.
Realizes high efficiency with pulse skip operation at light load.
The product reducies component count with built-in phase compensation.
Includes OCP, UVLO, TSD protection functions.
Soft start time can be adjusted by selecting the value of external capacitor. EN function allows ON/OFF with an external signal.
SOIC8 package.

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Features

    ・Current mode type PWM (normal load)
    ・Pulse skip operation (light load)
    　Switch mode for pulse skip load current
    ・Up to 95% Efficiency
    ・Up to 85% Efficiency at light load
    　(Vin=12V, Vo=5V, Io=10mA)
    ・Low ESR capacitor can be used for output
    ・Built-in phase compensation circuit
    ・Time adjustable soft start function
    ・External ON/OFF function
    ・Built-in protection functions
    　-Overcurrent protection (OCP):
    　　Drooping-type, auto restart
    　-Thermal shutdown (TSD): Auto restart
    　-Undervoltage lock out circuit (UVLO)
    ・DIP8 package suitable for single sided PCB

Application

・VIN=12V type for power supply bus unit
・Power supply for standby applications
　(TV, Audio, Motor Driver), USB-Power

Specifications

Built-in Power Power IC
Output Method Variable
Output Voltage 14.0 V
Output Current 3.0 A
Input Voltage Range 4.5 to 17 V
Operating Frequency 350 kHz
Synchronous / Asynchronous Asynchronous
Current Mode Control YES
Maximum Input Voltage 19.00 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.) 0.075 g
Automotive Qualified NO

Typical Application

Typical Application

Block Diagram

Block Diagram

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