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Product Detailed Parameters
- Description：IC REG LINEAR 10V 100MA 8-SOP
- Series：78LXX
- Mfr：UMW
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：10V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.7V @ 40mA
- Current - Output：100mA
- Current - Quiescent (Iq)：5.5 mA
- Current - Supply (Max)：-
- PSRR：44dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-20°C ~ 120°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOP
- Grade：-
- Qualification：-
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Overview
The UMW L78L10A is a three-terminal positive linear voltage regulator belonging to the L78LxxA series. It provides a fixed output voltage of 10 V with a maximum output current capability of 100 mA. The device operates within an input voltage range from 12.5 V to 35 V. It features a line regulation of 220 mV and a load regulation of 94 mV. The typical power supply rejection ratio (PSRR) is 43 dB, and the maximum power dissipation is 750 mW. The component supports through-hole mounting in a TO-92-3 package and functions reliably across a temperature range from 0°C to +125°C.
Feature Summary
- Provides stable fixed positive voltage regulation for electronic circuits
- Integrates internal thermal overload protection and current limiting mechanisms
- Requires minimal external components for standard linear regulation applications
Applications
- General-purpose DC power supply regulation
- Battery-powered equipment requiring stable voltage rails
- Embedded systems logic level shifting
Procurement Notes
Verify the specific manufacturer marking and datasheet revision against official UMW documentation before integration. Confirm that the TO-92-3 package variant matches your board layout requirements. Ensure input voltage constraints are strictly observed to prevent exceeding the 750 mW power dissipation limit under worst-case thermal conditions.
Selection Notes
Select this component when a fixed 10 V output at low current is required without adjustable resistor networks. Consider the thermal performance carefully as the small package limits heat dissipation capacity. Verify compatibility with existing PCB footprints designed for standard three-terminal regulators.
Part Context
This part belongs to the widely adopted L78Lxx family of linear regulators, known for their simplicity and reliability in low-power applications. The L78L10A specifically targets designs needing a precise 10 V rail. It serves as a direct functional replacement for similar legacy parts from other manufacturers within the same electrical specification class.
Replacement Considerations
- KA78L10AZTA
- NJM78L10UA-TE1
- L78L10ACUTR
FAQ
What is the maximum input voltage allowed for the L78L10A?
The maximum input voltage is 35 V. Exceeding this limit may damage the device.
Does the L78L10A include short-circuit protection?
Yes, the device includes internal circuitry for thermal overload protection and current limiting.
