ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 100MA TO92-3
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：30V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：5.5 mA
- Current - Supply (Max)：6 mA
- PSRR：49dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
Download product information
Overview
The L78L33ACZTR is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, housed in a TO-92-3 package. It provides a fixed output voltage of 3.3 V with a maximum output current of 100 mA. The device accepts an input voltage range from 5.3 V to 30 V and operates within a junction temperature range of 0 °C to 125 °C. Electrical characteristics include a typical quiescent current of 6 mA, line regulation of 150 mV, load regulation of 60 mV, and supply voltage rejection of 49 dB at 120 Hz.
Feature Summary
- Integrates internal current limiting and thermal shutdown protection mechanisms for robust operation.
- Functions as a fixed voltage regulator suitable for local or on-card regulation applications.
- Designed to replace Zener diode and resistor combinations while offering lower noise and quiescent current.
Applications
- Local or on-card voltage regulation
- Elimination of noise associated with single-point regulation
- Replacement for Zener diode/resistor combinations
Procurement Notes
Verify the specific suffix 'ZTR' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the AC designation aligns with the required ±4% output voltage tolerance specification. Ensure the TO-92-3 through-hole package matches the target printed circuit board footprint and mechanical constraints.
Selection Notes
Select this component when a fixed 3.3 V output is required with up to 100 mA load capability. The AC variant ensures tighter voltage accuracy compared to standard C versions. Consider the thermal resistance characteristics of the TO-92 package and the necessity of adequate copper area for heat dissipation under high load conditions.
Part Context
This part belongs to the L78L series of three-terminal positive regulators manufactured by STMicroelectronics. The series includes various fixed output voltages and is designed for general-purpose power management tasks requiring simple implementation without external components.
Replacement Considerations
L78L33ACZ
FAQ
What is the output voltage tolerance for the L78L33ACZTR?
The 'AC' suffix indicates a ±4% output voltage tolerance.
Does the L78L33ACZTR require external capacitors for stability?
No external components are required for basic operation, though capacitors are recommended for optimal performance as per application guidelines.
