KA7812ERTM

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

The KA7812ERTM is a three-terminal positive linear voltage regulator from the KA78XXE series, manufactured by onsemi. It provides a fixed 12 V output with a maximum current of 1 A. The device operates within an input voltage range of 14.5 V to 27 V and supports junction temperatures from -40°C to +125°C. Key electrical characteristics include a line regulation of up to 240 mV, load regulation of up to 240 mV, and ripple rejection of 71 dB at 120 Hz. It utilizes a D-PAK (TO-252AB) surface-mount package.

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

• Integrated thermal overload protection prevents damage during excessive heat conditions.
• Short-circuit protection limits current flow to safeguard internal circuitry.
• Output transistor safe operating area protection ensures stability under varying loads.

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

• General-purpose DC power supply regulation
• Split power supply configurations requiring stable positive rails
• Ripple rejection circuits for noise-sensitive analog sections

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

Verify the specific suffix 'ERTM' corresponds to the D-PAK tape and reel packaging format as defined in the ordering information table. Confirm that the component meets the required temperature grade (-40°C to +125°C) for your application environment. Cross-reference the manufacturer part number against the official onsemi database to ensure compatibility with system integration requirements following Fairchild Semiconductor product transitions.

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

Select this component when a fixed 12 V output is required with up to 1 A load capability in a surface-mount form factor. Ensure the input voltage remains between 14.5 V and 27 V to maintain proper regulation. Consider the thermal resistance characteristics of the D-PAK package and implement adequate heat sinking if continuous operation near the 1 A limit is expected.

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

This regulator belongs to the KA78XXE family of three-terminal positive voltage regulators. The series offers multiple fixed output voltages including 5, 6, 8, 9, 10, 12, 15, 18, and 24 V. These devices are designed for wide-ranging applications due to their robust internal protection features and availability in both through-hole and surface-mount packages.

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

KA7812ETU

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

What is the maximum input voltage for the KA7812ERTM?

The maximum input voltage is 27 V.

Does the KA7812ERTM include short-circuit protection?

Yes, the device includes internal short-circuit protection to limit current during fault conditions.