78L05
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the 78L05 does
The UTC 78LXX family comprises monolithic fixed voltage regulators available in output voltages of 5V through 18V. These devices support output currents up to 100mA and feature thermal overload shutdown protection along with short circuit current limiting. The parts operate across a wide temperature range from -40°C to +85°C and are supplied in various packages including SOT-89, SOT-25, SOP-8, and TO-92. Engineers typically utilize these regulators for applications requiring stable positive voltage supplies with robust protection mechanisms. The family maintains low quiescent current and offers high ripple rejection to ensure clean power delivery in sensitive electronic circuits.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 2 mA | 6 mA | VIN = 19V, IOUT = 0mA, TJ = 25°C; CP 6707212 (VIN = 10V, IOUT = 10mA, 0°C<TJ<100°C, 0.1μF, 0.1μF, unless otherwise specified) | Unisonic datasheet, p. 5 — ELECTRICAL CHARACTERISTICS (Cont.) |
| output voltage | 11.5 V | 12 V | 12.5 V | TJ = 25°C; CP 6707212 (VIN = 10V, IOUT = 10mA, 0°C<TJ<100°C, 0.1μF, 0.1μF, unless otherwise specified) | Unisonic datasheet, p. 5 — ELECTRICAL CHARACTERISTICS (Cont.) |
| output current (abs max) | — | — | 100 mA | ABSOLUTE MAXIMUM RATINGS | Unisonic datasheet, p. 3 — ABSOLUTE MAXIMUM RATINGS |
| supply voltage range | 7 V | — | 20 V | Unisonic datasheet, p. 3 — ELECTRICAL CHARACTERISTICS | |
| operating temperature (abs max) | -40 °C | — | 85 °C | ABSOLUTE MAXIMUM RATINGS | Unisonic datasheet, p. 3 — ABSOLUTE MAXIMUM RATINGS |
| power dissipation (abs max) | — | — | 350 mW | SOT-89; ABSOLUTE MAXIMUM RATINGS | Unisonic datasheet, p. 3 — ABSOLUTE MAXIMUM RATINGS |
| dropout voltage | — | 1.7 V | — | TJ = 25°C; ELECTRICAL CHARACTERISTICS | Unisonic datasheet, p. 3 — ELECTRICAL CHARACTERISTICS |
| output noise voltage | — | 80 µV | — | 10Hz≤f≤100kHz; CP 6707212 (VIN = 10V, IOUT = 10mA, 0°C<TJ<100°C, 0.1μF, 0.1μF, unless otherwise specified) | Unisonic datasheet, p. 5 — ELECTRICAL CHARACTERISTICS (Cont.) |
| output count | — | 1 | — | Unisonic datasheet, p. 1 — ORDERING INFORMATION |
Closest matches to 78L05
Frequently asked questions
What is the dropout voltage of the 78L05 at TJ = 25°C?
The dropout voltage is 1.7 V.
What is the operating temperature under ABSOLUTE MAXIMUM RATINGS?
The operating temperature is 85 °C.
What is the output count for the 78L05?
The output count is 1.
What is the output current under ABSOLUTE MAXIMUM RATINGS?
The output current is 100 mA.
What is the output noise voltage of the 78L05?
The output noise voltage is 80 µV at 10Hz≤f≤100kHz with CP 6707212 (VIN = 10V, IOUT = 10mA, 0°C<TJ<100°C, 0.1μF, 0.1μF, unless otherwise specified).
What is the output voltage of the 78L05 at TJ = 25°C with CP 6707212 (VIN = 10V, IOUT = 10mA, 0°C<TJ<100°C, 0.1μF, 0.1μF, unless otherwise specified)?
The output voltage is 12 V.
What is the maximum power dissipation for the 78L05 in an SOT-89 package?
The maximum power dissipation is 350 mW under ABSOLUTE MAXIMUM RATINGS conditions.
What is the quiescent current of the 78L05?
The quiescent current is 2 mA at VIN = 19V, IOUT = 0mA, and TJ = 25°C.
What is the supply voltage range for the 78L05?
The supply voltage range is 20 V.