2951 ACMC PDF

Source ACMC direct from stocking distributors and other suppliers. Find ACMC parts and datasheets using netCOMPONENTS, the world’s largest. SNVSN –JANUARY –REVISED MAY LPN/LPN Series of Adjustable Micropower Voltage Regulators. Check for Samples: LPN. » Datasheets» Поиск ACMC. getting query ACMC searching datasheet pdf is found, procesing please wait.

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LM2951-ACMC (IC Supply Chain)

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Control system wikipedialookup. Negative feedback wikipedialookup. Thank you for your participation! They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the device increases only slightly in dropout, prolonging battery life.

This includes a tight initial tolerance 0. One such feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input. It may be used for a power-on reset. A second feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. Also, the part may be pin-strapped for a 5-V, 3-V, or 3. Pin Configuration and Functions Page numbers for previous revisions may differ from page numbers in the current version.

These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

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May exceed input supply voltage. When used in dual-supply systems where the output terminal sees loads returned to a negative supply, the output voltage should be diode-clamped to ground. The junction-to-ambient thermal resistances are as follows: All LP devices have the nominal output voltage coded as the last two digits of the part number.

In the LP products, the 3-V and 3. These limits are not used to calculate outgoing AQL levels. Output or reference voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.

ACMC,National Semiconductor | IC Chips |

Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. See Typical Characteristics for line regulation versus temperature and load current. At very low values of programmed output voltage, the minimum input supply voltage of 2 V 2.

Quiescent Current Figure 2. Dropout Characteristics Figure 3. Input Current Figure 4. Input Current Figure 5. Temperature of 3 Representative Units Figure 6. Quiescent Current Figure 8. Quiescent Current Figure 9.

Stock/Availability for: 2951ACMC

9251 Quiescent Current Figure Short Circuit Current Figure Dropout Voltage Figure Output Impedance Figure Ripple Rejection Figure Shutdown Threshold Amcc Figure Line Regulation Figure Thermal Response Figure Please consult factory for custom voltages. In order to meet different application requirements, LPN can 251 be used as a programmable voltage regulator, with an external resistors network; please refer to Application and Implementation for more details.

VDO indirectly wcmc a minimum input voltage above the nominal programmed output voltage at which the output voltage is expected 9251 remain within its accuracy boundary. This function is designed for the application which needs a shutdown mode to effectively enhance battery life cycle. Please refer to Xcmc and Implementation for more details. The LDO is not designed to operate in a steady-state current limit.

During a current-limit event, the LDO sources constant current. Therefore, the output voltage falls when load impedance decreases. Note also that if a admc limit occurs and the resulting output voltage is low, excessive power may be dissipated across the LDO, resulting in a thermal shutdown of the output. A fold back feature limits the short-circuit current to protect the regulator from damage under all load conditions. If OUT is forced below 0 V before EN goes high and the load current required exceeds the fold back current limit, the device may not start up correctly.

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The thermal time-constant of the semiconductor die is fairly short, and thus the output cycles on and off at a high rate when thermal shutdown is reached until the power dissipation is reduced.

The internal protection circuitry of the device is designed to protect against thermal overload conditions. The circuitry is not intended to replace proper heat sinking. Continuously running the device into thermal shutdown degrades its reliability. For output capacitor requirement, please refer to Application and Implementation. At input voltages below the minimum VIN requirement, the devices do not operate correctly and output voltage may not reach target value. Decreasing shutdown below 0.

Customers should validate and test their design implementation to confirm system functionality. Efficiency is defined by the ratio of output voltage to input voltage because the LPN and LPN is a linear voltage regulator. Successfully implementing an LDO in an application depends on the application requirements.

If the requirements are simply input voltage and output voltage, compliance specifications such as internal power dissipation or stability must be verified to ensure a solid design.

If timing, axmc, noise, PSRR, or any other transient specification is required, the design becomes more challenging. To achieve the smallest form factor, the TO package is selected.

Input and output capacitors are selected in accordance with the Capacitor Recommendation section. With an ac,c of At lower output voltages, more capacitance is required 2.