LCT Positive Voltage Regulators. OUTPUT CURRENT TO A OUTPUT VOLTAGES OF 24V THERMAL OVERLOAD PROTECTION SHORT CIRCUIT. Datasheet. DS – Rev 36 – September For further information contact your local STMicroelectronics sales office. LCT STMicroelectronics | ND DigiKey Electronics. LCT Linear Voltage Regulator IC Development Tool Selector. HTML Datasheet, L78 .

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Document Outline Figure 1: Schematic Diagram Table 1: Absolute Maximum Ratings Table 2: Thermal Data Figure 2: Schematic Diagram Figure 3: Connection Diagram top view Table 3: Order Codes Figure 4: Application Circuits Figure 5: DC Parameter Figure 6: Load Regulation Figure 7: Ripple Rejection Table 4: Dropout Voltage vs Junction Temperature Figure 9: Supply Voltage Rejection vs Frequency Figure Output Voltage vs Junction Temperature Figure Output Impedance vs Frequency Figure Quiescent Current vs Junction Temperature Figure Load Transient Response Figure Line Transient Response Figure Quiescent Current vs Input Voltage Figure Fixed Output Regulator Figure Current Regulator Figure Circuit for Increasing Output Voltage Figure Adjustable Output Regulator 7 to 30V Figure High Current Voltage Regulator Figure Tracking Voltage Regulator Figure Negative Output Voltage Circuit Figure Switching Regulator Figure High Input Voltage Circuit Figure High Output Voltage Regulator Figure High Input and Output Voltage Figure Remote Shutdown Figure These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation.


Each type employs internal current limiting, thermal shut-down dafasheet safe area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents.

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.


Operating Junction Temperature Range. Thermal Resistance Junction-case Max.

Thermal Resistance Junction-ambient Max. Connection Diagram top view.

Electrical Characteristics Of L refer to the test circuits, T. Pulse testing with low duty cycle is used.

T Output Voltage Drift. Short Circuit Peak Current. Search field Part name Part description.