SEMTECH Manuals

The SC1205 is a cost effective Dual MOSFET Driver designed for switching High and Low side Power MOSFETs. Each driver is capable of driving a 3000pF load in 20ns rise/fall time and has a 20ns max propagation delay from input transition to the gate of the power FET’s. An internal Overlap Protection Circuit prevents shoot-through from Vin to GND in the main switching and synchronous MOSFET’s. The Overlap Protection circuit ensures the Bottom FET does not turn on until the Top FET source has reached a voltage low enough to prevent cross-conduction. The high current drive capability (2A peak) allows fast switching, thus reducing switching losses at high (1MHz) PWM frequencies. The high voltage CMOS process allows operation from 5-25 Volts at top MOSFET drain, thus making SC1205 suitable for battery powered applications. Connecting Enable pin (EN) to logic low shuts down both drives and reduces operating current to less than 10uA. An Under-Voltage-Lock-Out circuit is included to guarantee that both driver outputs are low when the 5V logic level is less than or equal to 4.4V (typ) at supply ramp up (4.35V at supply ramp down). An Internal temperature sensor shuts down all drives in the event of overtemperature. SC1205 is fabricated utilizing CMOS technology for low quiescen

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SC1189 is a power management product produced by Semtech Corp. This product has multiple features, including low-dropout regulator, output voltage stability, overcurrent protection, power-up sequencing, etc.

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The SC1186 combines a programmable synchronous DC/DC converter with dual low dropout regulator controllers. It provides most of the circuitry necessary to implement three DC/DC converters for powering advanced microprocessors such as Pentium II and III. The SC1186 features an integrated D/A converter, latched drive output, pulse by pulse current limiting, and logic compatible shutdown. It operates at a fixed frequency of 140kHz, striking an optimum compromise between size, efficiency, and cost in the intended application areas. The integrated D/A converter allows programmability of output voltage from 2.0V to 3.5V in 100mV increments without the need for external components. The SC1186 linear sections are low dropout regulators with short circuit protection, supplying 1.5V for GTL bus and 2.5V for non-GTL I/O. The reference voltage is available for external linear regulators.

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The SC1185 is a 3.3V switching power supply chip from SEMTECH. It has a built-in 5-bit D/A converter that can be used to adjust the output voltage from 2.0V to 3.5V in 100mV increments. It also has overcurrent protection and soft-start functionality. The chip also includes two low-dropout linear regulators that can provide 1.5V and 2.5V for GTL buses and non-GTL I/O, respectively.

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This document is SC1182/3 English datasheet, SC1182/3 is an integrated circuit, a programmable synchronous DC/DC converter, with dual low dropout linear regulator controller, provides most of the circuitry necessary to implement three DC/DC converters for powering advanced microprocessors, such as Pentium® II(Klamath) or Deschutes.

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This document introduces a low-power microcontroller module based on STM32F407ZG microcontroller. The module adopts ARM Cortex-M4 architecture, with a main frequency of 168MHz and rich peripheral resources. The module adopts low power design, with standby current less than 1mA, working voltage range of 3.3V to 5.5V, and working temperature range of -40℃ to 85℃.

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The SC1172/3 is a programmable synchronous DC/DC converter with a low-dropout linear regulator controller. It provides most of the circuitry necessary to implement two DC/DC converters for powering advanced microprocessors such as Pentium® II (Klamath) or Deschutes.

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This document is a wireless network access device manual that provides detailed interface introduction and usage methods for wireless network access devices. The device supports connecting to WiFi networks and can connect to the Internet via WiFi networks. The device also has an integrated 4G module that can connect to the Internet via 4G networks. In addition, the device can be connected to a computer via USB and can transfer data via USB.

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This document is the datasheet of SC1164/5, which introduces the features and characteristics of the product.

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SC1162/3 is a programmable synchronous DC/DC converter from Semtech. It integrates a low-dropout linear regulator controller and provides most of the circuitry necessary to implement two DC/DC converters for powering advanced microprocessors such as Pentium ® II.

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The SC1159 is a programmable synchronous DC/DC hysteretic controller designed for use in single ended power supply applications where efficiency is the primary concern. It is ideal for implementing DC/DC converters needed to power advanced microprocessors such as Pentium III and Athlon, in both single and multiple processor configurations. The controller features an integrated 5-bit D/A converter, temperature compensated voltage reference, current limit comparator, over-current protection, and an adaptive deadtime circuit to prevent shoot-through of the power MOSFET during switching transitions. It also provides power good signaling, logic compatible shutdown, and over-voltage protection.

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The SC1158 is a low-cost, full featured, synchronous voltage-mode controller designed for use in single-ended power supply applications where efficiency is of primary concern. Synchronous operation allows for the elimination of heat sinks in many applications. The SC1158 is ideal for implementing DC/DC converters needed to power advanced microprocessors such as Pentium II and K6-2. It features an integrated 4-bit VID DAC, temperature-compensated voltage reference, triangle wave oscillator, current limit comparator, frequency shift over-current protection, and an internally compensated error amplifier. The SC1158 operates at a fixed 140KHz, providing an optimum compromise between efficiency, external component size, and cost.

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The SC1157 is a programmable synchronous DC/DC controller designed for single-ended power supply applications. It is low-cost and efficient, making it ideal for powering advanced microprocessors such as Pentium II.

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The SC1155 is a programmable synchronous DC/DC hysteretic controller designed for use in single ended power supply applications where efficiency is the primary concern. The controller is a hysteretic type, with a user selectable hysteresis. The SC1155 is ideal for implementing DC/DC converters needed to power advanced microprocessors such as Pentium® III and Athlon®, in both single and multiple processor configurations. Inhibit, under-voltage lockout and soft-start functions are included for controlled power-up.

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SC1154 is a programmable synchronous DC/DC switch-mode controller from Semtech. It features high efficiency and low external components. It is ideal for single-ended power supply applications.

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The SC1153 is a programmable synchronous DC/DC controller designed for use in single ended power supply applications where efficiency is of primary concern. It features low cost, full functionality, synchronous operation, and a 5-bit VID programmable output. It is ideal for implementing DC/DC converters needed to power advanced microprocessors.

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The SC1152 is a low-cost, full featured, synchronous voltage-mode controller designed for use in single ended power supply applications where efficiency is of primary concern. Synchronous operation allows for the elimination of heat sinks in many applications. The SC1152 is ideal for implementing DC/DC converters needed to power advanced microprocessors such as Pentium ® ll (Klamath), in both single and multiple pro- cessor configurations. Internal level-shift, high-side drive circuitry, and preset shoot-thru control, allows for use of inexpensive n-channel power switches. SC1152 features include an integrated 5-bit VID DAC, temperature compensated voltage reference, triangle wave oscillator, current limit comparator, frequency shift over-current protection, and an accessible, inter- nally compensated error amplifier.

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This document is the data sheet of SC1151, which introduces the features and characteristics of the product, including the maximum working voltage, working temperature range, and package type.

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