
Overview
The LM140LAH-12 is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by Texas Instruments in a TO-39-3 package with 3 pins. -55℃~+125℃ 1 100mA 12V 2V@(1A) 35V 3mA 72dB@(120Hz) Fixed Positive TO-39-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.
PCBKit's library has its KiCad symbol (Pinmap_Generic:Regulator_Linear_1IN_2OUT_3GND, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_THT:TO-39-3, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2868004).
Symbol
Footprint
Parameters
10- Dropout Voltage
- 2V@(1A)
- Maximum Input Voltage
- 35V
- Number of Outputs
- 1
- Operating Temperature
- -55℃~+125℃
- Output Current
- 100mA
- Output Polarity
- Positive electrode
- Output Type
- Fixed
- Output Voltage
- 12V
- Power Supply Rejection Ratio (PSRR)
- 72dB@(120Hz)
- standby current
- 3mA
Order codes
1- LM140LAH-12LCSC C2868004
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | IN | Power in |
| 2 | OUT | Power out |
| 3 | GND | Power in |
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Is there a KiCad symbol and footprint for the LM140LAH-12?
Yes. The symbol is Pinmap_Generic:Regulator_Linear_1IN_2OUT_3GND and the footprint Package_TO_SOT_THT:TO-39-3, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LM140LAH-12?
TO-39-3, with 3 pins. Its footprint is drawn on this page.
Where is the LM140LAH-12 datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the LM140LAH-12?
JLCPCB lists it as part C2868004, with 0 in stock; the sellers' links on this page open their listings.
What can replace the LM140LAH-12?
Parts like it in the library: the 78L12 by UMW, the L78L12ABU by STMicroelectronics, the 78L12G-AB3-R by UTC and the CJ7812 by Jiangsu Changjing Electronics Technology (CJ). Check their datasheets: a part that fits the footprint may still differ in its ratings.
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