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NCP1583

ON Semiconductor
Part Number NCP1583
Manufacturer ON Semiconductor
Description Low Voltage Synchronous Buck Controller
Published Jan 16, 2007
Detailed Description NCP1582, NCP1582A, NCP1583 Low Voltage Synchronous Buck Controllers The NCP158x is a low cost PWM controller designed ...
Datasheet PDF File NCP1583 PDF File

NCP1583
NCP1583

Overview
NCP1582, NCP1582A, NCP1583 Low Voltage Synchronous Buck Controllers The NCP158x is a low cost PWM controller designed to operate from a 5 V or 12 V supply.
This device 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 NCP158x 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 NCP158x comes in an 8−pin SOIC package.
Features • Input Voltage Range from 4.
5 V to 13.
2 V • 350 kHz (NCP1582, NCP1582A), 300 kHz (NCP1583) Internal Oscillator • Boost Pin Operates to 30 V • Voltage Mode PWM Control • 0.
8 V $1.
5% Internal Reference Voltage • Adjustable Output Voltage • Programmable Soft−Start • Internal 0.
7 A Gate Drivers • 80% Max Duty Cycle • Input UVLO • RDS(on) Current Sensing for Short Circuit Protection • These are Pb−Free Devices Applications • Graphics Cards • Desktop Computers • Servers/Networking • DSP and FPGA Power Supply • DC−DC Regulator Modules FB VCC BST VIN COMP/DIS TG PHASE VOUT GND BG 8 1 http://onsemi.
com MARKING DIAGRAM 8 SOIC−8 D SUFFIX CASE 751 158x ALYW G 1 x = 2, 2A or 3 A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Device PIN CONNECTIONS BST 1 TG 2 GND 3 BG 4 8 PHASE 7 COMP/DIS 6 FB 5 VCC (Top View) NCP158x Series NCP1582 NCP1582A NCP1583 Oscillator Frequency 350 kHz 350 kHz 300 kHz SCP Trip Voltage −350 mV −450 mV −350 mV ORDERING INFORMATION Device Package Shipping† NCP1582DR2G SOIC−8 2500/Tape & Reel (Pb−Free) NCP1582ADR2G SOIC−8 2500/Tape & Reel (Pb−Free) NCP1583DR2G SOIC−8 2500/Tape & Reel (Pb−Free) †For information on tape and reel specifications, including part orientation and tape sizes, please ...


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