78M
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the 78M family does
The UMW78Mxx family comprises three-terminal positive voltage regulators offering fixed output voltages of 5, 6, 8, 9, 12, 15, 18, and 24 V. These devices support output currents up to 1 A and feature thermal overload, short circuit, and safe operating area protection. Available in TO-252 and SOT-223 packages, they handle power dissipation of 1 W or 2 W depending on the package. Typical applications include power supply regulation in commercial and industrial equipment. Key electrical characteristics include a dropout voltage of 2 V at 500 mA, quiescent current of 6 mA, and ripple rejection of 80 dB at 120 Hz.
78M05 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | — | 6 mA | TJ = 25°C; 7.1 Electrical Characteristics (78M05) | UTD datasheet, p. 3 — 7.1 Electrical Characteristics (78M05) |
| output voltage | 4.8 V | 5 V | 5.2 V | 25°C; 7.1 Electrical Characteristics (78M05) | UTD datasheet, p. 3 — 7.1 Electrical Characteristics (78M05) |
| output current (abs max) | — | — | 1 A | iout; 5. Absolute Maximum Rating | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
| supply voltage range (abs max) | — | — | 35 V | UTD datasheet, p. 2 — 5. Absolute Maximum Rating | |
| operating temperature (abs max) | -20 °C | — | 125 °C | UTD datasheet, p. 2 — 5. Absolute Maximum Rating | |
| power dissipation (abs max) | — | — | 1 W | SOT-223; pd; 5. Absolute Maximum Rating | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
| dropout voltage | — | 2 V | — | TJ = 25°C, IO = 500mA; 7.1 Electrical Characteristics (78M05) | UTD datasheet, p. 3 — 7.1 Electrical Characteristics (78M05) |
| output noise voltage | — | 40 µV | — | f = 10Hz~100KHz; 7.1 Electrical Characteristics (78M05) | UTD datasheet, p. 3 — 7.1 Electrical Characteristics (78M05) |
| output count (abs max) | — | — | 1 | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
78M05 frequently asked questions
What is the dropout voltage of the 78M05 at TJ = 25°C and IO = 500mA?
The dropout voltage is 2 V.
What is the maximum operating temperature for the 78M05?
The operating temperature is 125 °C.
What is the output count of the 78M05?
The output count is 1.
What is the absolute maximum output current (iout; 5) for the 78M05?
The absolute maximum output current (iout; 5) is 1 A.
What is the output noise voltage for the 78M05?
The output noise voltage is 40 µV at f = 10Hz~100KHz.
What is the output voltage of the 78M05 at 25°C?
The output voltage is 5 V.
What is the absolute maximum power dissipation for the 78M05 in the SOT-223 package?
The absolute maximum power dissipation is 1 W.
What is the quiescent current of the 78M05 at TJ = 25°C?
The quiescent current is 6 mA at TJ = 25°C.
What is the supply voltage range for the 78M05?
The supply voltage range is 35 V.
78M06 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | — | 8 mA | TJ = 25°C; 7.2 Electrical Characteristics (78M06) | UTD datasheet, p. 4 — 7.2 Electrical Characteristics (78M06) |
| output voltage | 5.76 V | 6 V | 6.24 V | 25°C; 7.2 Electrical Characteristics (78M06) | UTD datasheet, p. 4 — 7.2 Electrical Characteristics (78M06) |
| output current (abs max) | — | — | 1 A | iout; 5. Absolute Maximum Rating | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
| supply voltage range (abs max) | — | — | 35 V | UTD datasheet, p. 2 — 5. Absolute Maximum Rating | |
| operating temperature (abs max) | -20 °C | — | 125 °C | UTD datasheet, p. 2 — 5. Absolute Maximum Rating | |
| power dissipation (abs max) | — | — | 1 W | SOT-223; pd; 5. Absolute Maximum Rating | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
| dropout voltage | — | 2 V | — | TJ = 25°C, IO = 500mA; 7.2 Electrical Characteristics (78M06) | UTD datasheet, p. 4 — 7.2 Electrical Characteristics (78M06) |
| output noise voltage | — | 45 µV | — | f = 10Hz~100KHz; 7.2 Electrical Characteristics (78M06) | UTD datasheet, p. 4 — 7.2 Electrical Characteristics (78M06) |
| output count (abs max) | — | — | 1 | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
78M06 frequently asked questions
What is the dropout voltage of the 78M06 at TJ = 25°C and IO = 500mA?
The dropout voltage is 2 V.
What is the maximum operating temperature for the 78M06?
The operating temperature is 125 °C.
What is the output count for the 78M06?
The output count is 1.
What is the absolute maximum output current (iout; 5) for the 78M06?
The absolute maximum output current (iout; 5) is 1 A.
What is the output noise voltage of the 78M06?
The output noise voltage is 45 µV at f = 10Hz~100KHz.
What is the output voltage of the 78M06 at 25°C according to section 7.2 Electrical Characteristics?
The output voltage is 6 V.
What is the power dissipation for the 78M06 in an SOT-223 package?
The power dissipation is 1 W.
What is the quiescent current of the 78M06 at TJ = 25°C?
The quiescent current is 8 mA.
What is the supply voltage range for the 78M06?
The supply voltage range is 35 V.
78M08 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | — | 6 mA | TJ = 25°C; 7.3 Electrical Characteristics (78M08) | UTD datasheet, p. 5 — 7.3 Electrical Characteristics (78M08) |
| output voltage | 7.68 V | 8 V | 8.32 V | 25°C; 7.3 Electrical Characteristics (78M08) | UTD datasheet, p. 5 — 7.3 Electrical Characteristics (78M08) |
| output current (abs max) | — | — | 1 A | iout; 5. Absolute Maximum Rating | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
| supply voltage range (abs max) | — | — | 35 V | UTD datasheet, p. 2 — 5. Absolute Maximum Rating | |
| operating temperature (abs max) | -20 °C | — | 125 °C | UTD datasheet, p. 2 — 5. Absolute Maximum Rating | |
| power dissipation (abs max) | — | — | 1 W | SOT-223; pd; 5. Absolute Maximum Rating | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
| dropout voltage | — | 2 V | — | TJ = 25°C, IO = 500mA; 7.3 Electrical Characteristics (78M08) | UTD datasheet, p. 5 — 7.3 Electrical Characteristics (78M08) |
| output noise voltage | — | 52 µV | — | f = 10Hz~100KHz; 7.3 Electrical Characteristics (78M08) | UTD datasheet, p. 5 — 7.3 Electrical Characteristics (78M08) |
| output count (abs max) | — | — | 1 | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
78M08 frequently asked questions
What is the dropout voltage of the 78M08 at TJ = 25°C and IO = 500mA?
The dropout voltage is 2 V.
What is the operating temperature of the 78M08?
The operating temperature is 125 °C.
What is the output count of the 78M08?
The output count is 1.
What is the absolute maximum output current (iout; 5) for the 78M08?
The absolute maximum output current (iout; 5) is 1 A.
What is the output noise voltage of the 78M08 when f = 10Hz~100KHz?
The output noise voltage is 52 µV.
What is the output voltage of the 78M08 at 25°C according to section 7.3 Electrical Characteristics?
The output voltage is 8 V.
What is the absolute maximum power dissipation for the 78M08 in the SOT-223 package?
The absolute maximum power dissipation (pd) is 1 W in the SOT-223 package.
What is the quiescent current of the 78M08 at TJ = 25°C?
The quiescent current is 6 mA at TJ = 25°C.
What is the supply voltage range for the 78M08?
The supply voltage range is 35 V.
78M09 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | — | 6 mA | TJ = 25°C; 7.4 Electrical Characteristics (78M09) | UTD datasheet, p. 6 — 7.4 Electrical Characteristics (78M09) |
| output voltage | 8.64 V | 9 V | 9.36 V | 25°C; 7.4 Electrical Characteristics (78M09) | UTD datasheet, p. 6 — 7.4 Electrical Characteristics (78M09) |
| output current (abs max) | — | — | 1 A | iout; 5. Absolute Maximum Rating | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
| supply voltage range (abs max) | — | — | 35 V | UTD datasheet, p. 2 — 5. Absolute Maximum Rating | |
| operating temperature (abs max) | -20 °C | — | 125 °C | UTD datasheet, p. 2 — 5. Absolute Maximum Rating | |
| power dissipation (abs max) | — | — | 1 W | SOT-223; pd; 5. Absolute Maximum Rating | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
| dropout voltage | — | 2 V | — | TJ = 25°C, IO = 500mA; 7.4 Electrical Characteristics (78M09) | UTD datasheet, p. 6 — 7.4 Electrical Characteristics (78M09) |
| output noise voltage | — | 52 µV | — | f = 10Hz~100KHz; 7.4 Electrical Characteristics (78M09) | UTD datasheet, p. 6 — 7.4 Electrical Characteristics (78M09) |
| output count (abs max) | — | — | 1 | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
78M09 frequently asked questions
What is the dropout voltage of the 78M09 at TJ = 25°C, IO = 500mA?
The dropout voltage is 2 V.
What is the maximum operating temperature for the 78M09?
The operating temperature is 125 °C.
What is the output count for the 78M09?
The output count is 1.
What is the absolute maximum output current (iout; 5) for the 78M09?
The absolute maximum output current (iout; 5) for the 78M09 is 1 A.
What is the output noise voltage of the 78M09 when f = 10Hz~100KHz?
The output noise voltage is 52 µV.
What is the output voltage of the 78M09 at 25°C according to section 7.4 Electrical Characteristics?
The output voltage is 9 V.
What is the absolute maximum power dissipation for the 78M09 in the SOT-223 package?
The absolute maximum power dissipation is 1 W.
What is the quiescent current of the 78M09 at TJ = 25°C?
The quiescent current is 6 mA.
What is the supply voltage range for the 78M09?
The supply voltage range is 35 V.
78M12 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | — | 6 mA | TJ = 25°C; 7.5 Electrical Characteristics (78M12) | UTD datasheet, p. 7 — 7.5 Electrical Characteristics (78M12) |
| output voltage | 11.5 V | 12 V | 12.5 V | 25°C; 7.5 Electrical Characteristics (78M12) | UTD datasheet, p. 7 — 7.5 Electrical Characteristics (78M12) |
| output current (abs max) | — | — | 1 A | iout; 5. Absolute Maximum Rating | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
| supply voltage range (abs max) | — | — | 35 V | UTD datasheet, p. 2 — 5. Absolute Maximum Rating | |
| operating temperature (abs max) | -20 °C | — | 125 °C | UTD datasheet, p. 2 — 5. Absolute Maximum Rating | |
| power dissipation (abs max) | — | — | 1 W | SOT-223; pd; 5. Absolute Maximum Rating | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
| dropout voltage | — | 2 V | — | TJ = 25°C, IO = 500mA; 7.5 Electrical Characteristics (78M12) | UTD datasheet, p. 7 — 7.5 Electrical Characteristics (78M12) |
| output noise voltage | — | 75 µV | — | f = 10Hz~100KHz; 7.5 Electrical Characteristics (78M12) | UTD datasheet, p. 7 — 7.5 Electrical Characteristics (78M12) |
| output count (abs max) | — | — | 1 | UTD datasheet, p. 2 — 5. Absolute Maximum Rating |
78M12 frequently asked questions
What is the dropout voltage of the 78M12 at TJ = 25°C and IO = 500mA?
The dropout voltage is 2 V.
What is the operating temperature of the 78M12?
The operating temperature is 125 °C.
What is the output count?
The output count is 1.
What is the absolute maximum output current (iout; 5) for the 78M12?
The absolute maximum output current (iout; 5) is 1 A.
What is the output noise voltage of the 78M12 when f = 10Hz~100KHz?
The output noise voltage is 75 µV.
What is the output voltage of the 78M12 at 25°C?
The output voltage is 12 V at 25°C.
What is the absolute maximum power dissipation for the 78M12 in a SOT-223 package?
The absolute maximum power dissipation is 1 W.
What is the quiescent current of the 78M12 at TJ = 25°C?
The quiescent current is 6 mA at TJ = 25°C.
What is the supply voltage range?
The supply voltage range is 35 V.