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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 20MA TO263-5L
- Series：-
- Mfr：TAEJIN
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：26V
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：26V
- Voltage Dropout (Max)：0.6V @ 1.5A
- Current - Output：20mA
- Current - Quiescent (Iq)：20 mA
- Current - Supply (Max)：22 mA
- PSRR：-
- Control Features：Enable, Error Flag
- Protection Features：Load Dump, Over Current, Over Temperature, Reverse Polarity, Transient Voltage
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Supplier Device Package：TO-263-5L
- Grade：-
- Qualification：-
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Overview
The LM29152R is a 1.5A adjustable very low dropout voltage regulator manufactured by TAEJIN (HTC Korea). It utilizes a PNP pass element to achieve a maximum dropout voltage of 350mV at full load. The device features an operating input voltage range up to 26V and provides accurate initial tolerance with a reference voltage typically around 1.24V. It includes logic-level enable control, reverse-battery protection, and thermal shutdown capabilities.
Feature Summary
- Adjustable output voltage configuration via external resistors
- Logic level enable pin for zero-current shutdown mode
- PNP pass element architecture for minimal dropout performance
- Integrated overcurrent limiting and thermal shutdown protection
Applications
- Battery powered equipment requiring extended runtime
- High-efficiency linear power supplies
- Post-regulator stages for switching power supplies
- Automotive electronics systems
Procurement Notes
Verify the specific package type corresponds to the 'R' suffix, which indicates TO-263 packaging. Confirm the manufacturer designation matches HTC Korea TAEJIN Technology Co. specifications. Ensure the component status is listed as Active in official ordering information before procurement.
Selection Notes
Select this component when an adjustable output voltage is required alongside high current capability. It is suitable for applications demanding low ground current and fast transient response. Consider the TO-263 package thermal characteristics for heat dissipation requirements under full load conditions.
Part Context
This part belongs to the LM2915x family of regulators, which also includes fixed voltage variants like the LM29150 and enabled versions like the LM29151. The LM29152 specifically denotes the adjustable version within this series, sharing common electrical protections and dropout characteristics with its siblings.
Replacement Considerations
LM29152T (TO-220 Package)
FAQ
How is the output voltage determined for the LM29152R?
The output voltage is programmable between 1.24V and the maximum operating rating using two external resistors connected to the ADJ pin.
What is the function of the Enable pin on the LM29152R?
The Enable pin allows ON/OFF control of the regulator. When pulled low, it activates a zero-current shutdown mode, reducing quiescent current to microamperes.
