Skip to the content
PCBKitNew board
L79L15ACU, in 3D

L79L15ACU

STMicroelectronics

0℃~+125℃@(Tj) 1 1.7V 100mA 15V 35V 39dB@(120Hz) 6.5mA 90uV Fixed Negative Over Current Protection、Over Temperature Protection、Short Circuit Protection SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS

Extended
Category
Voltage Regulators Linear, Low Drop Out (LDO) Regulators
Package
SOT-89-3
Pins
3

Overview

The L79L15ACU is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by STMicroelectronics in a SOT-89-3 package with 3 pins. 0℃~+125℃@(Tj) 1 1.7V 100mA 15V 35V 39dB@(120Hz) 6.5mA 90uV Fixed Negative Over Current Protection、Over Temperature Protection、Short Circuit Protection SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.

PCBKit's library has its KiCad symbol (Pinmap_Generic:Regulator_Linear_1GND_2IN_3OUT, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_SMD:SOT-89-3, from KiCad's library), ready for a KiCad board. 2,121 are in stock at JLCPCB (part C495224). 2 open-source boards in 2 repositories on GitHub use it.

Symbol

IN2OUT3GND1
Pinmap_Generic:Regulator_Linear_1GND_2IN_3OUTFrom PCBKit's generic symbols

Footprint

123
Package_TO_SOT_SMD:SOT-89-3From KiCad's library

Parameters

12
Features
Thermal shutdown
Noise
90uV
Number of Outputs
1
Operating Temperature
0℃~+125℃@(Tj)
Output Configuration
Negative
Output Current
100mA
Output Type
Fixed
Output Voltage
15V
Power Supply Rejection Ratio (PSRR)
39dB@(120Hz)
Voltage - Supply
35V
Voltage Dropout
1.7V
standby current
6.5mA

Order codes

1

Pinout

3
The pins of the L79L15ACU
PinNameType
1GNDPower in
2INPower in
3OUTPower out

Open-source boards using it

All 2
  • 4 layers80 × 100 mmAD5791-Linearity Calibrator, the printed circuit board in 3D

    AD5791-Linearity Calibrator

    NNNILabs/AD5791-Linearity-Calibrator

    Power is supplied through the 3.5mm terminal block with the labels 'IN+' and 'IN-'. +/-18V is an ideal nominal supply. The DAC board is connected to a computer through the Raspberry Pi Pico controller's micro USB port.

    67 parts16MIT
  • 4 layers146 × 95 mmEEZ DIB MIO168, the printed circuit board in 3D

    EEZ DIB MIO168

    eez-open/dib-mio168

    EEZ DIB Mixed I/O module

    279 parts8

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/st/L79L15ACU" title="L79L15ACU in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/st/L79L15ACU.jpg" alt="L79L15ACU" width="1200" height="900">
A picture that opens the part, for a README
[![L79L15ACU](https://pcbkit.io/embed/parts/st/L79L15ACU.jpg?size=s)](https://pcbkit.io/parts/st/L79L15ACU)

Questions

Is there a KiCad symbol and footprint for the L79L15ACU?

Yes. The symbol is Pinmap_Generic:Regulator_Linear_1GND_2IN_3OUT 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 L79L15ACU?

SOT-89-3, with 3 pins. Its footprint is drawn on this page.

Where is the L79L15ACU datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the L79L15ACU?

JLCPCB lists it as part C495224, with 2,121 in stock; the sellers' links on this page open their listings.

What can replace the L79L15ACU?

Parts like it in the library: the UA78L15ACPK by Texas Instruments, the 78L15 by UMW, the 78L15 by GOODWORK and the L78L15ABU by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the L79L15ACU?

2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8