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Product Detailed Parameters
- Description：IC REG LIN 2.5V 200MA 4-STSTAMP
- 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)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：200mA
- Current - Quiescent (Iq)：40 µA
- Current - Supply (Max)：-
- PSRR：80dB ~ 55dB (1kHz ~ 100kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature, Soft Start
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：4-XFQFN
- Supplier Device Package：4-STSTAMP™ (0.47x0.47)
- Grade：-
- Qualification：-
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Overview
The LDBL20D-25R is a fixed-output linear low-dropout regulator from STMicroelectronics, providing a stable 2.5V output with a maximum current of 200mA. It operates within an input voltage range of 1.5V to 5.5V and features a typical dropout voltage of 200mV at full load. The device incorporates ultra-low quiescent current of 20µA and high power supply rejection ratios of 80dB at 1kHz. Integrated protections include overcurrent limiting, thermal shutdown, and internal soft-start functionality.
Feature Summary
- Ultra-low quiescent current consumption for extended battery life in portable devices
- Logic-controlled electronic shutdown mode with minimal standby current draw
- High power supply rejection ratio ensuring clean output under varying line conditions
- Integrated thermal and constant current protection mechanisms
Applications
- Low-power battery-operated handheld electronics
- Portable consumer devices requiring space-efficient power regulation
- Systems utilizing ceramic capacitors for output stabilization
Procurement Notes
Verify the specific suffix 'D' and '25R' against official datasheets to confirm the fixed 2.5V output voltage and tape-and-reel packaging configuration. Ensure compatibility with the required 4-STSTAMP package footprint during procurement planning. Confirm RoHS3 compliance status if environmental regulations apply to your manufacturing process.
Selection Notes
Select this component when a compact form factor is critical due to its small STSTAMP package dimensions. It is suitable for applications demanding high accuracy with tight output voltage tolerance. Consider the input voltage range limits and ensure the load current does not exceed the guaranteed 200mA rating for reliable operation across the specified temperature range.
Part Context
This part belongs to the LDBL20 family of ultra-low dropout regulators designed for space-constrained applications. The series offers various fixed and adjustable output voltages while maintaining consistent performance characteristics such as low noise and high PSRR. The LDBL20D-25R specifically targets markets requiring efficient power management in miniature surface-mount designs.
Replacement Considerations
Other variants within the LDBL20 family may serve as substitutes if different output voltages are acceptable. Verify pinout compatibility and package dimensions before replacing. Cross-reference with other STMicroelectronics LDOs offering similar current ratings and package styles if availability is constrained.
