

78L12G-AB3-R
UTC
-40℃~+85℃ 1 1.7V 100mA 12V 27V 2mA 65dB@(120Hz) 80uV Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS
- Category
- Voltage Regulators Linear, Low Drop Out (LDO) Regulators
- Package
- SOT-89
- Pins
- 3
Overview
The 78L12G-AB3-R is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by UTC in a SOT-89 package with 3 pins. -40℃~+85℃ 1 1.7V 100mA 12V 27V 2mA 65dB@(120Hz) 80uV Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.
PCBKit's library has its KiCad symbol (Pinmap_Generic:Regulator_Linear_1OUT_2GND_3IN, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_SMD:SOT-89-3, from KiCad's library), ready for a KiCad board. 16,011 are in stock at JLCPCB (part C75501). 3 open-source boards in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
15- Dropout Voltage
- 1.7V@(40mA)
- Features
- Thermal shutdown
- Maximum Input Voltage
- 35V
- Noise
- 80uV
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+85℃
- Output Configuration
- Positive
- Output Current
- 100mA
- Output Polarity
- Positive
- Output Type
- Fixed
- Output Voltage
- 12V
- Power Supply Rejection Ratio (PSRR)
- 65dB@(120Hz)
- Voltage - Supply
- 27V
- Voltage Dropout
- 1.7V
- standby current
- 2mA
Order codes
1- 78L12G-AB3-RLCSC C75501
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | OUT | Power out |
| 2 | GND | Power in |
| 3 | IN | Power in |
Open-source boards using it
All 3- 4 layers32 × 58 mm

- 4 layers82 × 56.5 mm

- 2 layers77 × 39 mm

Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/utc/78L12G-AB3-R" title="78L12G-AB3-R in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/utc/78L12G-AB3-R.jpg" alt="78L12G-AB3-R" width="1200" height="900">[](https://pcbkit.io/parts/utc/78L12G-AB3-R)Questions
Is there a KiCad symbol and footprint for the 78L12G-AB3-R?
Yes. The symbol is Pinmap_Generic:Regulator_Linear_1OUT_2GND_3IN and the footprint Package_TO_SOT_SMD:SOT-89-3, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 78L12G-AB3-R?
SOT-89, with 3 pins. Its footprint is drawn on this page.
Where is the 78L12G-AB3-R datasheet?
UTC publishes it: the Datasheet link on this page opens it.
Where can I order the 78L12G-AB3-R?
JLCPCB lists it as part C75501, with 16,011 in stock; the sellers' links on this page open their listings.
What can replace the 78L12G-AB3-R?
Parts like it in the library: the 78L12 by UMW, the L78L12ABU by STMicroelectronics, the CJ79L12 by Jiangsu Changjing Electronics Technology (CJ) and the HT75C0-1 by Holtek Semicon. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the 78L12G-AB3-R?
3 boards in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
878L12
SOT-89-3-20℃~+120℃@(Tj) 1 1.7V 100mA 12V 27V 2mA 36dB@(120Hz) 80uV Fixed Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSUMWVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsL78L12ABU
SOT-89-3-40℃~+125℃@(Tj) 1 1.7V 100mA 12V 35V 42dB@(120Hz) 6.5mA 80uV Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsCJ79L12
SOT-89-30℃~+150℃@(Tj) 1 1.5V@(40mA) 100mA 12V 35V 42dB@(120Hz) 80uV Fixed Negative Over Temperature Protection SOT-89-3L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSJiangsu Changjing Electronics Technology (CJ)Voltage Regulators - Linear, Low Drop Out (LDO) RegulatorsHT75C0-1
SOT-89-3-40℃~+85℃ 1 12V 150mA 30V 55mV@(1mA) Fixed Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSHoltek SemiconVoltage Regulators - Linear, Low Drop Out (LDO) Regulators78L12
SOT-890℃~+125℃@(Tj) 1 1.7V 100mA 12V 35V 42dB@(120Hz) 6.5mA 70uV Fixed Over Current Protection、Over Temperature Protection Positive SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSGOODWORKVoltage Regulators - Linear, Low Drop Out (LDO) Regulators78L12
SOT-89-3L1 1.7V@(40mA) 100mA 12V 35V 42dB@(120Hz) 6.5mA Fixed Positive SOT-89-3L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSHXY MOSFETVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsL78L12ACU
SOT-89-30℃~+125℃ 1 100mA 12V 35V 42dB@(120Hz) 6mA 80uV Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsL79L12ACU
SOT-89-30℃~+125℃@(Tj) 1 1.7V 100mA 12V 35V 42dB@(120Hz) 6.5mA 80uV Fixed Negative Over Current Protection、Over Temperature Protection、Short Circuit Protection SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators