LM136 DATASHEET PDF

Oct 04 2020
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The LM/LM and LM integrated cir- cuits are precision V shunt regulator diodes. These monolithic IC voltage references operate as a. LMN, LMN, LMNV Reference Diode products and disclaimers thereto appears at the end of this data sheet. The LM/LM/LM integrated circuits are precision V shunt regulator diodes. These monolithic IC voltage references operate as a low .

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With options for Burst Mode operation for the highest conversion efficiency at light load and pulse-skipping operation for lower output voltage ripple, gives users the option to personalize a circuit’s performance. The combination of its thermally enhanced MSOP package and a constant switching frequency up to 3MHz enables the designer to balance printed circuit board solution size with required efficiency.

Multiphase operation reduces input and output ripple as well as the number of input and datxsheet capacitors. Other IC features include low external parts count with ceramic capacitor stability, soft-start circuitry to prevent excessive current flow during startup, plus short circuit and thermal protection. Its constant switching frequency of 2. A frequency adjust pin permits the user to program the frequency between kHz and 1MHz, optimizing efficiency while minimizing external component size xatasheet cost offering a very compact HB LED driver or charger solution.

A user-programmable output current limit can set output current from 10mA to mA thereby minimizing the need to oversize external components and protecting high impedance sources.

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The electrical specifications are identical to the existing E- and I-grade versions of this device. Its peak current mode architecture offers excellent line and load transient response. Quiescent current of only 1. The LTC can be programmed with fixed output voltages of 1.

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The two channels run degrees out of phase, minimizing the size of input capacitance. For applications that require the lowest possible noise, the LTC can be configured to run in pulse-skipping mode, reducing noise and potential RF interference. Its fixed frequency, current mode architecture offers stable operation over a wide range of supply and output voltages.

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The LTM features protection functions for overcurrent and overvoltage conditions and the internal temperature of the device can be monitored via an internal temperature sensing diode. For less demanding dimming requirements, the CTRL pin can be used to offer a Show Tabs Hide Tabs.

The LTC is a synchronous buck-boost converter that delivers up to mA of continuous output current from a wide variety of input sources including single or multiple-cell batteries as well as solar panels and supercaps. Internal protection circuitry includes reverse-battery protection, no reverse current, current limiting with foldback, and thermal limiting.

Four devices in parallel can deliver 80A of load current. The LTC is a high efficiency, 17V input capable synchronous buck regulator that delivers up to 1A of continuous output current to outputs as low datawheet 0.

This H-grade version is ideal for automotive, industrial and military applications that are subject to high ambient temperatures. These tiny external capacitors can be used without any necessary series resistance as is common datashet many other regulators.

Other features include a power good indicator, current-mode control, internal compensation thermal shutdown and output disconnect. Robust open and short-circuit protection maximize overall system reliability. To protect the load, the LTM features output overvoltage and overcurrent protection. The combination of its 2mm x dataxheet DFN or MSOP-8 package high switching frequency and dstasheet, low cost capacitors and inductors ensures a highly compact solution footprint.

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For applications requiring large input-to-output differentials, the LT offers a very compact and thermally effective solution.

National Semiconductor

It operates from an lk136 voltage range of 4. The constant 1MHz switching frequency ensures low noise and high efficiency, while minimizing the size of the external components. Low operating current 18? Applications include point-of-load conversion from 12V or 5V inputs in telecom, industrial, avionics and test equipment.

The output voltage can be set with one resistor from 0. Additional features include power good voltage monitors, internal compensation, independent soft-start capability for each channel and short-circuit protection. The LTM converts input supplies ranging from 4. Internal circuitry automatically selects the conversion ratio 2: This enables automatic correction of voltage errors caused by droop across PCB traces, which is valuable for powering loads such as FPGAs requiring high currents at low voltages.

The LTC utilises internal synchronous rectification and a programmable peak current-mode design to optimize efficiency over a broad range of output currents. Applications include industrial and medical equipment, and networking and telecom systems. The LTC’s unique constant frequency architecture with reduced switching edge rates provides lower conducted and radiated noise compared to conventional switching regulators.