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Product Detailed Parameters
- Description：IC REG LIN 1.5V 150MA SOT-323-5
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：1.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：150mA
- Current - Quiescent (Iq)：60 µA
- Current - Supply (Max)：110 µA
- PSRR：76dB ~ 54dB (1kHz ~ 100kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SOT-323-5
- Grade：-
- Qualification：-
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Overview
The LD59015C15R is a fixed-output linear voltage regulator from STMicroelectronics, providing a stable 1.5V output with a maximum current capacity of 150mA. It operates within an input voltage range of 2.4V to 5.5V and features a typical dropout voltage of 150mV. The device incorporates logic-controlled electronic shutdown, reducing quiescent current to below 1μA in off mode. It includes internal short-circuit constant current limiting and thermal protection. The component is housed in a SOT-323-5 surface-mount package and supports operation across a temperature range of -40°C to 125°C.
Feature Summary
- Logic-controlled electronic shutdown for ultra-low power consumption
- High power supply rejection ratio suitable for noise-sensitive applications
- Internal overcurrent and thermal protection mechanisms
- Stable operation with ceramic capacitors
Applications
- Mobile phones
- Personal digital assistants (PDAs)
- Cordless phones
- Battery-powered systems
Procurement Notes
Verify the specific suffix 'C15' confirms the 1.5V fixed output voltage. Confirm the 'R' suffix indicates tape-and-reel packaging if required by assembly equipment. Check the official datasheet for the latest RoHS compliance status and ensure the component meets REACH regulations for the intended market. Validate that the SOT-323-5 footprint matches the design layout.
Selection Notes
Select this component when a low-noise, high-PSRR LDO is needed for battery-operated devices requiring a precise 1.5V rail. It is suitable for applications where minimizing static current is critical during standby modes. Ensure the input voltage remains within the 2.4V to 5.5V range and that the load current does not exceed 150mA. Consider the thermal dissipation capabilities of the SOT-323-5 package under maximum load conditions.
Part Context
This part belongs to the LD59015 family of 150mA low-noise linear regulators designed for portable electronics. The series offers various fixed output voltages and shares common features such as high PSRR and low quiescent current. The LD59015C15R specifically targets applications requiring a 1.5V supply with enhanced noise immunity and efficient power management in compact form factors.
Replacement Considerations
LP5951MG-1.5/NOPB
FAQ
What is the typical quiescent current at no-load?
The typical quiescent current at no-load is 31 μA.
Is the device compatible with ceramic output capacitors?
Yes, the LD59015 is stable with ceramic capacitors.
What is the power supply rejection ratio at 10 kHz?
The PSRR is 76 dB at 10 kHz.
