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.

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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 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. Notes : 1. Required for stability. For value given, capacitor must be solid tantalum. If aluminium electrolitics 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.

Against potential latch-up problems. Figure 3 : Circuit for Increasing Output Voltage. Optional dropping resistor to reduce the power dissipated in the boost transistor. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use.

No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems withoutexpress written approval of STMicroelectronics.

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