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Product Detailed Parameters
- Description：IC REG LIN 1.2V 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)：1.2V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：200mA
- Current - Quiescent (Iq)：40 µA
- Current - Supply (Max)：100 µA
- PSRR：80dB ~ 55dB (1kHz ~ 100kHz)
- Control Features：Enable
- Protection Features：-
- 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-12R is a fixed-output linear regulator from the STMicroelectronics LDBL20 family, providing a nominal output voltage of 1.2 V with a maximum load current of 200 mA. It operates within an input voltage range of 1.5 V to 5.5 V and features a typical dropout voltage of 200 mV at full load. The device incorporates ultra-low quiescent current (20 µA typical) and high power supply rejection ratio (80 dB at 1 kHz). It includes internal soft-start, constant current limiting, thermal shutdown, and logic-controlled electronic shutdown capabilities.
Feature Summary
- Ultra-low quiescent current for extended battery life in portable devices
- Logic-controlled enable pin for efficient system power management
- Integrated soft-start circuit to limit inrush current during startup
- Internal protection against overcurrent and excessive junction temperature
Applications
- Mobile phones
- Tablet computers
- Digital still cameras
- Wearable devices
- Portable media players
Procurement Notes
Verify the specific order code LDBL20D-12R against the manufacturer's official documentation to confirm the fixed 1.2 V output setting and package type. Ensure compatibility with the required ceramic output capacitance for stability. Confirm environmental compliance status and availability through authorized distribution channels prior to procurement.
Selection Notes
Select this component when a compact footprint and low standby current are critical for battery-operated systems. The 1.2 V output is suitable for powering digital logic or memory components requiring this specific rail. Verify that the application input voltage remains within the 1.5 V to 5.5 V operational range to ensure proper regulation and performance.
Part Context
This part belongs to the LDBL20 series of high-accuracy voltage regulators designed for space-constrained applications. The series utilizes the proprietary STSTAMP™ package, which measures only 0.47 x 0.47 mm², offering significant board area savings compared to standard QFN packages while maintaining robust electrical performance and thermal characteristics.
Replacement Considerations
Compatible substitutes within the same family include LDBL20D-11, LDBL20D-18R, LDBL20D-25R, and LDBL20D-33R, provided the specific output voltage requirement matches the application design.
