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Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 200MA 6-DFN
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：13.2V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.35V @ 200mA
- Current - Output：200mA
- Current - Quiescent (Iq)：90 µA
- Current - Supply (Max)：100 µA
- PSRR：55dB ~ 50dB (120Hz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：6-XFDFN
- Supplier Device Package：6-DFN (1.2x1.3)
- Grade：-
- Qualification：-
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Overview
The LDK220PU33R is a fixed-output linear low-dropout regulator manufactured by STMicroelectronics. It provides a stable 3.3 V output with a maximum load current of 200 mA. The device operates within an input voltage range of 2.5 V to 13.2 V and features a typical quiescent current of 90 µA, with a maximum supply current of 100 µA. It utilizes a 6-DFN (1.2x1.3 mm) surface-mount package. The regulator supports an operating temperature range from -40°C to +125°C and includes built-in overcurrent and thermal overload protection.
Feature Summary
- Ultra-low quiescent current consumption for extended battery life in portable applications
- Integrated overcurrent and thermal shutdown protection mechanisms
- Fixed 3.3 V output configuration ensuring precise voltage regulation
Applications
- Battery-powered consumer electronics requiring efficient power management
- Portable devices utilizing single-cell lithium-ion or alkaline batteries
- Embedded systems needing stable logic supply voltages
Procurement Notes
Verify the specific manufacturer part number STLQ020PU33R against official STMicroelectronics documentation to ensure component accuracy. Confirm that the DFN-6 package dimensions and pinout align with design requirements. Check RoHS compliance status and moisture sensitivity levels prior to procurement to prevent handling issues during assembly.
Selection Notes
Select this component when a fixed 3.3 V rail is required with minimal standby current draw. The wide input voltage range accommodates various battery chemistries. Ensure the PCB layout supports the small 6-DFN footprint and adequate thermal dissipation for the expected load conditions.
Part Context
This regulator belongs to the LDK220 series of ultra-low quiescent current LDOs designed for space-constrained applications. It shares architectural similarities with other fixed-output variants like the LDK220PU40R and LDK220PU50R, differing primarily in the regulated output voltage level while maintaining identical package and protection features.
Replacement Considerations
Compatible substitutes include LDK220PU40R and LDK220PU50R for different voltage requirements. Verify pin compatibility and thermal characteristics before substitution.
