L7905CV PDF

These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation; furthermore, having the same voltage option as the L positive standard series, they are particularly suited for split power supplies. In addition, the If adequate heat sinking is provided, they can deliver over 1. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. Changes in Vo due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used.

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These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation; furthermore, having the same voltage option as the L78XX positive standard series, they are particularly suited for split power supplies. If adequate heat sinking is provided, they can deliver over 1. D2PAK TO-3 Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents.

Table 1. Functional operation under these condition is not implied Thermal data Parameter Thermal resistance junction-case Thermal resistance junction-ambient D2PAK 3 Load and line regulation are specified at constant junction temperature.

Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. Table 6. Table 8. Table Application information Fixed output regulator 1. To specify an output voltage, substitute voltage value for "XX". Required for stability. For value given, capacitor must be solid tantalum. If aluminium electrolytic are used, at least ten times value should be selected. C1 is required if regulator is located an appreciable distance from power supply filter.

To improve transient response. If large capacitors are used, a high current diode from input to output 1N or similar should be introduced to protect the device from momentary input short circuit. Figure 5.

Figure 7. These packages have a lead-free second level interconnect. The maximum ratings related to soldering conditions are also marked on the inner box label. D2PAK footprint recommended data Table Footprint data Values mm. D2PAK mechanical data has been updated, add footprint data and the document reformatted.

Order codes updated. Modified: Figure 3, Figure 4, Figure 6 and Figure 7. Modified: Table 1. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein.

No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein.

Information in this document supersedes and replaces all information previously supplied. All other names are the property of their respective owners.

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