Product Summary
The NCP1583DR2G is a low cost PWM controller designed to operate from a 5 V or 12 V supply. The NCP1583DR2G is capable of producing an output voltage as low as 0.8 V. This 8-pin device provides an optimal level of integration to reduce size and cost of the power supply. Features include a 0.7 A gate driver and an internally set 350 kHz (NCP1582, NCP1582A) and a 300 kHz (NCP1583) oscillator. The NCP1583DR2G also incorporates an externally compensated transconductance error amplifier and a programmable soft-start function. Protection features include short circuit protection (SCP) and under voltage lockout (UVLO). The NCP1583DR2G comes in an 8-pin SOIC package. Applications are (1)Graphics Cards; (2)Desktop Computers; (3)Servers/Networking; (4)DSP and FPGA Power Supply; (5)DC-DC Regulator Modules.
Parametrics
NCP1583DR2G absolute maximum ratings: (1)Main Supply Voltage Input: -0.3 V to 15 V; (2)Bootstrap Supply Voltage Input: -0.3 V to 30 V wrt/GND; -0.3 V to 15 V wrt/PHASE; (3)Switching Node (Bootstrap Supply Return): -0.7 V -5 V for < 50 ns to 24 V; (4)High-Side Driver Output (Top Gate): -0.3 V wrt/PHASE to 30 V wrt/GND;-0.3 V wrt/PHASE to 15 V wrt/PHASE; (5)Low-Side Driver Output (Bottom Gate): -0.3 V -2 V for < 200 ns to 15 V; (6)Feedback: -0.3 V to 5.5 V; (7)COMP/DISABLE: -0.3 V to 5.5 V.
Features
NCP1583DR2G features: (1)Input Voltage Range from 4.5 V to 13.2 V; (2)350 kHz (NCP1582, NCP1582A), 300 kHz (NCP1583)Internal Oscillator; (3)Boost Pin Operates to 30 V; (4)Voltage Mode PWM Control; (5)0.8 V 1.5% Internal Reference Voltage; (6)Adjustable Output Voltage; (7)Programmable Soft-Start; (8)Internal 0.7 A Gate Drivers; (9)80% Max Duty Cycle; (10)Input UVLO; (11)RDS(on)Current Sensing for Short Circuit Protection; (12)These are Pb-Free Devices.
Diagrams

| Image | Part No | Mfg | Description | ![]() |
Pricing (USD) |
Quantity | ||||
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![]() NCP1583DR2G |
![]() ON Semiconductor |
![]() Voltage Mode PWM Controllers BUCK CONTROLLER |
![]() Data Sheet |
![]() Negotiable |
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![]() |
![]() NCP1583DR2GEVB |
![]() ON Semiconductor |
![]() Power Management IC Development Tools ANA SWITCH REG EVAL BOARD |
![]() Data Sheet |
![]() Negotiable |
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(China (Mainland))










