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Product Detailed Parameters
- Description：IC REG LINEAR 10V 500MA DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- 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)：-
- Current - Output：500mA
- Current - Quiescent (Iq)：6 mA
- Current - Supply (Max)：-
- PSRR：56dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：DPAK
- Grade：-
- Qualification：-
Download product information
Overview
The L78M10ACDT-TR is a three-terminal positive linear voltage regulator from the L78MxxA series by STMicroelectronics, housed in a DPAK surface-mount package. It provides a fixed 10 V output with a maximum current of 500 mA. The device operates within an ambient temperature range of 0 to 125 °C and supports a maximum DC input voltage of 35 V for this output level. Key electrical characteristics include a typical quiescent current of 6 mA, a dropout voltage of 2 V at 25 °C, and a line regulation of 30 mV under specified conditions.
Feature Summary
- Integrated thermal overload protection that shuts down the circuit during excessive power conditions.
- Internal short-circuit protection limits maximum output current to prevent damage.
- Output transistor safe-area protection reduces output current as voltage across the pass transistor increases.
Applications
- Local on-card voltage regulation
- Distribution systems requiring point-of-load control
- Adjustable voltage and current circuits using external components
Procurement Notes
Verify the specific suffix 'AC' against official datasheets to confirm the 0 to 125 °C operating range, distinct from the AB grade. Ensure the DPAK package dimensions match the target PCB footprint. Confirm RoHS compliance status via manufacturer documentation before finalizing procurement specifications.
Selection Notes
Select this component when a fixed 10 V supply is required with up to 500 mA load capability in a compact surface-mount form factor. Consider the 2 V dropout voltage requirement relative to the minimum input voltage. Evaluate thermal resistance values for adequate heat dissipation if operating near maximum current limits.
Part Context
This part belongs to the L78MxxA family of precision regulators available in TO-220 and DPAK packages. The AC variant specifically denotes the extended temperature range starting from 0 °C, whereas the AB variant covers -40 °C. These devices are designed for robust performance in general-purpose power management applications.
Replacement Considerations
L78M10ABDT-TR (differing temperature range)
FAQ
What is the guaranteed output voltage tolerance?
The device guarantees a ± 2% output voltage tolerance.
Is an input bypass capacitor required?
While not strictly required for low-current applications, a 0.33 µF or larger capacitor is recommended at the input if long wire lengths connect the regulator to the power supply filter or if the output load capacitance is large.
