2 layers102 × 60 mm
L78L09ABU
STMicroelectronicsExtended
-40℃~+125℃@(Tj) 1 1.7V@(40mA) 100mA 30V 37dB@(120Hz) 6mA 70uV 9V Fixed Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS
- Part id
- st/L78L09ABU
- Category
- Voltage Regulators, Linear, Low Drop Out (LDO) Regulators
- Package
- SOT-89-3
- Pins
- 3
- In stock
- 1,429 at JLCPCB (C52103)
- Used on
- 6 open-source boards
Overview
The L78L09ABU is a voltage Regulators, Linear, Low Drop Out (LDO) Regulator made by STMicroelectronics in a SOT-89-3 package with 3 pins. -40℃~+125℃@(Tj) 1 1.7V@(40mA) 100mA 30V 37dB@(120Hz) 6mA 70uV 9V Fixed Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 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. 1,429 are in stock at JLCPCB (part C52103). 6 open-source boards in 5 repositories on GitHub use it.
Symbol
Footprint
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | OUT | Power out |
| 2 | GND | Power in |
| 3 | IN | Power in |
Open-source boards using it
6- 2 layers118.3 × 68 mm
Field eyes v2.before spreading
louismomo66/field-eyes_pcb
Open fieldeyesv2.kicadpro in KiCad 9. The whole circuit is one flat schematic (fieldeyesv2.kicadsch): all 168 parts are on a single page, in four framed sections.
168 parts - 2 layers214 × 204 mm
- 2 layers50 × 50 mm
- 2 layers151 × 131 mm
- 2 layers96 × 72 mm
Field eyes v2.before max485
louismomo66/field-eyes_pcb
Open fieldeyesv2.kicadpro in KiCad 9. The whole circuit is one flat schematic (fieldeyesv2.kicadsch): all 168 parts are on a single page, in four framed sections.
156 parts
Parts like it
8
LR78L09A
SOT-89-40℃~+150℃@(Tj) 1 1.7V 100mA 24V 44dB@(120Hz) 49uV 5.5mA 9V Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSLeshan Radio (LRC)Voltage Regulators - Linear, Low Drop Out (LDO) Regulators78L09-150
SOT-89-3-20℃~+120℃@(Tj) 1 1.7V 150mA 24V 2mA 44dB@(120Hz) 49uV 9V 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) Regulators78L09
SOT-891 1.7V 100mA 30V 45dB@(120Hz) 6mA 9V Fixed Positive SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSHXY MOSFETVoltage Regulators - Linear, Low Drop Out (LDO) Regulators78L09T
SOT-890℃~+125℃@(Tj) 1 1.7V 100mA 30V 44dB@(120Hz) 6mA 70uV 9V Fixed Over Temperature Protection、Short Circuit Protection Positive SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSFoshan Blue Rocket ElecVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsNJM79L09SU3-TE1
SOT-89-3-40℃~+125℃@(Ta) 1 1.6V@(100mA) 100mA 210uV 3.5mA 30V 68dB@(120Hz) 9V Fixed Negative Over Current Protection、Thermal Shutdown SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSNisshinbo Micro Devices Inc.Voltage Regulators - Linear, Low Drop Out (LDO) RegulatorsSL78L09
SOT-89-3-40℃~+125℃ 1 1.7V 100mA 30V 44dB@(120Hz) 49uV 5.5mA 9V Fixed Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSlkorVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsCJ79L09
SOT-89-3L0℃~+150℃@(Tj) 1 1.7V 100mA 24V 4.1mA 45dB@(120Hz) 58uV 9V Fixed Negative TO-92 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSJiangsu Changjing Electronics Technology (CJ)Voltage Regulators - Linear, Low Drop Out (LDO) Regulators78L09
SOT-89-3-40℃~+85℃@(Ta) 1 1.7V 150mA 44dB@(120Hz) 6.5mA 9V Fixed Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSShikuesVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Questions
Is there a KiCad symbol and footprint for the L78L09ABU?
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 L78L09ABU?
SOT-89-3, with 3 pins. Its footprint is drawn on this page.
Where is the L78L09ABU datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the L78L09ABU?
JLCPCB lists it as part C52103, with 1,429 in stock; the sellers' links on this page open their listings.
What can replace the L78L09ABU?
Parts like it in the library: the LR78L09A by Leshan Radio (LRC), the 78L09-150 by UMW, the 78L09 by HXY MOSFET and the 78L09T by Foshan Blue Rocket Elec. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the L78L09ABU?
6 boards in 5 repositories on GitHub; the most starred are listed on this page, with their KiCad files.