MC7808CD2TR4G

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The MC7808CD2TR4G is a monolithic integrated circuit positive linear voltage regulator from the MC7800 series, manufactured by onsemi. It provides a fixed 8 V output with a maximum current capability exceeding 1.0 A. The device utilizes a D2PAK-3 (TO-263-3) surface-mount package and operates within an input voltage range of 10.6 V to 35 V. Key electrical characteristics include a typical quiescent current of 3.3 mA, line regulation of 1.7 mV, load regulation of 1.4 mV, and ripple rejection of 62 dB at 120 Hz.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Internal thermal overload protection shuts down the circuit during excessive power conditions.
• Internal short circuit current limiting protects against output faults.
• Output transistor safe-area compensation reduces short-circuit current as voltage across the pass transistor increases.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Local on-card voltage regulation
• Positive fixed-voltage power supplies
• Offline switching regulators

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix CD2TR4G corresponds to the D2PAK-3 surface mount package and tape-and-reel packaging format. Confirm RoHS compliance status and ensure the ordering information matches the required automotive or industrial grade specifications if applicable. Cross-reference the manufacturer part number with official distributor catalogs to validate availability and authenticity before purchase.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component for applications requiring a standard 8 V fixed output in a surface-mount configuration. Ensure the input voltage remains sufficiently above the dropout voltage to maintain regulation under maximum load conditions. Consider thermal management requirements given the power dissipation capabilities and junction-to-ambient thermal resistance characteristics inherent to the TO-263 package style.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This device belongs to the MC7800 series of three-terminal positive linear regulators. The series includes various output voltages and tolerance grades, such as the MC7808C and MC7808AC variants. The MC7800 family is designed for general-purpose voltage regulation tasks, offering robust internal protection features and compatibility with standard heat sinking methods for high-current operation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Compatible substitutes include other MC7808 variants with different packages or tolerances, such as MC7808CTG (TO-220) or MC7808ABD2TR4G (D2PAK-3). Verify pinout compatibility and thermal performance when substituting between package types or tolerance grades.