LT3015IQ-12#TRPBF

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

The LT3015IQ-12#TRPBF is a negative linear regulator from Analog Devices, delivering up to 1.5A of output current with a typical dropout voltage of 310mV. It provides a fixed regulated output of -12V and operates within an input voltage range of -1.8V to -30V. The device features low quiescent current of 1.1mA and includes precision current limit with foldback, thermal limit with hysteresis, and reverse output protection. It is housed in a 5-lead DD-Pak package and supports operation over the industrial temperature range of -40°C to +125°C.

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

• Provides stable negative regulation with fast transient response for noise-sensitive applications
• Incorporates precision current limiting with foldback and thermal shutdown with hysteresis
• Operates stably with ceramic, tantalum, or aluminum output capacitors without requiring ESR
• Features controlled quiescent current behavior during dropout conditions

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

• Post-regulator for switching supplies
• Negative logic power supplies
• Low noise instrumentation systems
• Industrial power supply circuits

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

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging when sourcing components. Confirm that the I-grade designation matches the required -40°C to +125°C operating temperature range for your application environment. Ensure compatibility with the 5-lead DD-Pak footprint during PCB layout verification.

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

Select this component when a fixed negative voltage rail is required alongside high current capability. The fixed -12V output eliminates the need for external resistor dividers used in adjustable versions. Consider the thermal performance of the DD-Pak package relative to expected load currents and ambient temperatures.

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

This part belongs to the LT3015 series of low noise, low dropout negative linear regulators. The series offers both fixed and adjustable output options across various packages including DD-Pak, TO-220, MSOP, and DFN. The IQ variant specifically denotes the industrial temperature grade suitable for demanding operational environments.

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

LT3015IQ-12#PBF (Tube Packaging)

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

What is the minimum input voltage required for proper regulation?

The minimum input voltage is -1.8V, which accounts for the necessary dropout voltage to maintain regulation at full load.

Does the device support indefinite short-circuit duration?

Yes, the internal protection circuitry allows for indefinite output short-circuit duration without damage.