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L4931CPT33 is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists STMicroelectronics. Its product description is IC REG LINEAR 3.3V 250MA PPAK. Review the specifications below when checking this part for your BOM.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for L4931CPT33
- Description：IC REG LINEAR 3.3V 250MA PPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：20V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.8V @ 250mA
- Current - Output：250mA
- Current - Quiescent (Iq)：1 mA
- Current - Supply (Max)：6 mA
- PSRR：73dB ~ 55dB (120Hz ~ 10kHz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Supplier Device Package：PPAK
- Grade：-
- Qualification：-
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for L4931CPT33
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview
The L4931CPT33 is a fixed positive low-dropout linear regulator providing a 3.3 V output, manufactured by STMicroelectronics in the TO-92 package. It features a typical dropout voltage of 0.4 V and supports an output current up to 250 mA. The device operates within a supply voltage range of 4.8 V to 20 V and maintains a temperature range from -40 °C to +125 °C. Quiescent current is typically 600 µA in ON mode and 50 µA in OFF mode. It includes internal current and thermal limiting protection.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary
- Very low dropout voltage for efficient power management
- Logic-controlled electronic shutdown capability
- Internal current and thermal limit protections
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications
- Battery-powered systems
- Low noise applications
- Local regulators with standby modes
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes
Verify the specific suffix 'CPT' against official datasheets to confirm package type (TO-92) and output tolerance (+/- 2%). Ensure compatibility with required input voltage ranges and thermal dissipation needs for the intended application environment.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes
Select this component when a fixed 3.3 V output is required with minimal quiescent current consumption. The TO-92 package suits through-hole designs. Verify that the 250 mA load current does not exceed thermal limits under maximum ambient temperatures.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context
Part of the L4931 family of very low drop voltage regulators designed for low power and battery-operated applications. The series offers various output voltages and packages, including SO-8 and DPAK, with optional inhibit functions.
Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ
Does the L4931CPT33 support logic-controlled shutdown?
No, the TO-92 package version lacks the TTL compatible shutdown logic control function available in PPAK and SO-8 packages.
What is the minimum capacitor requirement for stability?
The device requires only a 2.2 µF capacitor for stability.
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