ON Manuals

The CS5151H is a 4-bit nonsynchronous N-Channel buck controller. It is designed to provide unprecedented transient response for today’s demanding high-density, high-speed logic. The regulator operates using a proprietary control method, which allows a 100 ns response time to load transients. The CS5151H is designed to operate over a 4.25-20 V range (VCC) using 12 V to power the IC and 5.0 V or 12 V as the main supply for conversion. The CS5151H is specifically designed to power Pentium processors with MMX Technology and other high performance core logic. It includes features such as on board, 4-bit DAC, short circuit protection, 1.0% output tolerance, VCC monitor, and programmable Soft Start capability.

The NBC12430 and NBC12430A are 3.3V/5V programmable PLL synthesized clock generators with a frequency range of 50 MHz to 800 MHz.

The NBC12429 is a general purpose, PLL based synthesized clock source from Semiconductor Components Industries, LLC. It features a frequency range of 200 MHz to 400 MHz and can be programmed using the parallel or serial interfaces to the configuration logic.

The CS5141X products are 1.5 A buck regulator ICs. These devices are fixed–frequency operating at 260 kHz and 520 kHz. The regulators use the V2 control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation for today’s high–speed logic

The CS51227 is a fixed frequency, single output PWM controller using feed forward voltage mode control. Feed forward control provides superior line regulation and line transient response. This PWM controller has been optimized for high frequency primary side control operation. It has undervoltage lockout with 4.7 V start up voltage and 75 µA start up current. One external capacitor can program the switching frequency up to 1.0 MHz. The protection features include pulse–by–pulse current limit with leading edge blanking and thermal shutdown. The CS51227 is available in 8 lead SO narrow surface mount package.

The CS51220 is a single output PWM controller with switching frequency up to 500 kHz. The feed forward voltage mode control provides excellent line regulation for wide input range. This PWM controller has a synchronization output allowing programmable phase delay. For overcurrent protection, the “soft hiccup” technique effectively limits the output current with maximum flexibility. In addition, this device includes such features as: soft start, pulse–by–pulse current limit, programmable foldback current limit, volt–second clamping, maximum duty cycle, overvoltage and undervoltage protection, and synchronization input. The CS51220 is available in 16 SO narrow surface mount package.

CS51033 is a switching controller for use in dc-dc converters. It can be used in the buck topology with a minimum number of external components. The CS51033 consists of a 1.0 A power driver for controlling the gate of a discrete P-channel transistor, fixed frequency oscillator, short circuit protection timer, programmable Soft Start, precision reference, fast output voltage monitoring comparator, and output stage driver logic with latch. The high frequency oscillator allows the use of small inductors and output capacitors, minimizing PC board area and systems cost. The programmable Soft Start reduces current surges at start up. The short circuit protection timer significantly reduces the PFET duty cycle to approximately 1/30 of its normal cycle during short circuit conditions. The CS51033 is available in an 8-Lead SO package. Features • 1.0 A Totem Pole Output Driver • High Speed Oscillator (700 kHz max) • No Stability Compensation Required • Lossless Short Circuit Protection • 2.0% Precision Reference • Programmable Soft Start • Wide Ambient Temperature Range: ♦ Industrial Grade: -40°C to 85°C ♦ Commercial Grade: 0°C to 70°C 95 Units/Rail http://onsemi.com

The CS51031 is a switching controller for use in DC–DC converters. It can be used in the buck topology with a minimum number of external components. The CS51031 consists of a VCC monitor for controlling the state of the device, 1.0 A power driver for controlling the gate of a discrete P–channel transistor, fixed frequency oscillator, short circuit protection timer, programmable soft start, precision reference, fast output voltage monitoring comparator, and output stage driver logic with latch. The high frequency oscillator allows the use of small inductors and output capacitors, minimizing PC board area and systems cost. The programmable soft start reduces current surges at start up. The short circuit protection timer significantly reduces the duty cycle to approximately 1/30 of its cycle during short circuit conditions. The CS51031 is available in an 8 Lead SO plastic package.

This datasheet is about CS51021A/2A/3A/4A fixed frequency PWM current mode controller, which provides all necessary features required for AC-DC or DC-DC primary side control. The family includes several features to eliminate the additional components needed to implement them externally. In addition to low start-up current (75µA) and high frequency operation capability, the CS51021A/2A/3A/4A family includes overvoltage and undervoltage monitoring, externally programmable dual threshold overcurrent protection, current sense leading edge blanking, current slope compensation, accurate duty cycle control and an externally available 5.0 V reference. The CS51021A and CS51023A feature bidirectional synchronization capability, while the CS51022A and CS51024A offer a sleep mode with 100µA maximum IC current consumption. The CS51021A/2A/3A/4A family is available in a 16 lead narrow body SO package.

The CS5253B-1 is a 3.0 A LDO 5-Pin Adjustable Linear Regulator with Remote Sense Applications. It is a new very low dropout linear regulator that reduces total power dissipation in the application.

This document describes the maximum ratings and electrical characteristics of the 2N7000 N-Channel MOSFET.

NCV8501 is a family of precision micropower voltage regulators. Their output current capability is 150 mA. The family has output voltage options for adjustable, 2.5 V, 3.3 V, 5.0 V, 8.0 V, and 10 V. The output voltage is accurate within ± 2.0% with a maximum dropout voltage of 0.6 V at 150 mA. Low quiescent current is a feature drawing only 90 µA with a 100 µA load. This part is ideal for any and all battery operated microprocessor equipment. Microprocessor control logic includes an active RESET (with DELAY), and a flag monitor which can be used to provide an early warning signal to the microprocessor of a potential impending RESET signal. The use of the flag monitor allows the microprocessor to finish any signal processing before the RESET shuts the microprocessor down. The active RESET circuit operates correctly at an output voltage as low as 1.0 V. The RESET function is activated during the power up sequence or during normal operation if the output voltage drops outside the regulation limits. The regulator is protected against reverse battery, short circuit, and thermal overload conditions. The device can withstand load dump transients making it suitable for use in automotive environments. The device has also been optimized for EMC conditions.

NCV8501 is a family of precision micropower voltage regulators. Their output current capability is 150 mA. The family has output voltage options for adjustable, 2.5 V, 3.3 V, 5.0 V, 8.0 V, and 10 V. The output voltage is accurate within ±2.0% with a maximum dropout voltage of 0.6 V at 150 mA. Low quiescent current is a feature drawing only 90 �A with a 100 �A load. This part is ideal for any and all battery operated microprocessor equipment. Microprocessor control logic includes an active RESET (with DELAY), and a FLAG monitor which can be used to provide an early warning signal to the microprocessor of a potential impending RESET signal. The use of the FLAG monitor allows the microprocessor to finish any signal processing before the RESET shuts the microprocessor down. The active RESET circuit operates correctly at an output voltage as low as 1.0 V. The RESET function is activated during the power up sequence or during normal operation if the output voltage drops outside the regulation limits. The regulator is protected against reverse battery, short circuit, and thermal overload conditions. The device can withstand load dump transients making it suitable for use in automotive environments. The device has also been optimized for EMC conditions. Features • Output

This document introduces the characteristics of NCV8184 micropower 70mA low dropout tracking regulator/line driver, which can be used in automotive applications with remote sensors, or any situation where it is necessary to isolate the output of your regulator.