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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 1.5A TO252-5L
- Series：-
- Mfr：TAEJIN
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：6V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：5V
- Voltage Dropout (Max)：0.4V @ 1.5A
- Current - Output：1.5A
- Current - Quiescent (Iq)：2.5 mA
- Current - Supply (Max)：-
- PSRR：65dB ~ 55dB (120Hz ~ 1kHz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-252-6, DPAK (5 Leads + Tab)
- Supplier Device Package：TO-252-5L
- Grade：-
- Qualification：-
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Overview
The LD39150GRS-ADJ is a 1.5A ultra-low dropout linear regulator in a TO-252-5L package, manufactured by HTC. It operates from an input supply of 2.5V to 5.5V and features an adjustable output voltage range of 1.0V to 5.0V. The device provides a typical dropout voltage of 45mV at 200mA load and 280mV at 1.5A load. Quiescent current is typically 0.20mA at 200mA load and 0.30mA at 1.5A load. It includes an enable pin, auto discharge function, and protection against over-current and thermal shutdown.
Feature Summary
- Adjustable output voltage capability using external resistors
- Ultra-low dropout voltage performance for high efficiency
- Integrated enable control with low standby current consumption
- Auto discharge function for rapid output capacitor release
Applications
- Microprocessor power supplies
- LCD TVs and SETTOP Boxes
- Battery powered equipment
- Motherboards and graphic cards
Procurement Notes
Verify the specific manufacturer HTC as the source for this part number. Confirm the TO-252-5L package type matches the design requirements. Ensure the adjustable output configuration aligns with the external resistor network design. Check for RoHS compliance status if required by the project specifications.
Selection Notes
Select this component when a high current capacity of 1.5A is required with minimal voltage drop. The adjustable feature allows flexibility for various voltage rails. Consider the thermal resistance characteristics for heat dissipation planning. Ensure the input voltage remains within the 2.5V to 5.5V operating range.
Part Context
This regulator belongs to the LD39150 series designed for low voltage applications. It utilizes CMOS process technology to maintain low ground current independent of load. The series supports fast dynamic response to line and load changes. It is suitable for space-constrained designs due to its compact package.
Replacement Considerations
Consult official documentation for direct substitutes. Verify pin compatibility and electrical parameters before substitution.
FAQ
How is the output voltage adjusted?
The output voltage is set between 1.0V and 5.0V using two external resistors connected to the ADJ pin.
What happens when the enable pin is low?
Pulling the EN pin below 0.4V turns off the regulator and activates the auto discharge function to drain the output capacitor.
