Skip to the content
PCBKitNew board
78L33, in 3D

78L33

TECH PUBLIC

0℃~+125℃@(Tj) 100mA 20V 3.3V 40uV 49dB@(120Hz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS

Extended
DatasheetJLCPCBLCSCtech-public/78L33
Category
Voltage Regulators Linear, Low Drop Out (LDO) Regulators
Package
SOT-89
Pins
3

Overview

The 78L33 is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by TECH PUBLIC in a SOT-89 package with 3 pins. 0℃~+125℃@(Tj) 100mA 20V 3.3V 40uV 49dB@(120Hz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.

PCBKit's library has its footprint (Package_TO_SOT_SMD:SOT-89-3, from KiCad's library), ready for a KiCad board. 2,961 are in stock at JLCPCB (part C22358675).

Symbol

The library has no symbol for this part yet.

Footprint

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

Parameters

10
Features
Thermal shutdown
Noise
40uV
Number of Outputs
1
Operating Temperature
0℃~+125℃@(Tj)
Output Configuration
Positive
Output Current
100mA
Output Type
Fixed
Output Voltage
3.3V
Power Supply Rejection Ratio (PSRR)
49dB@(120Hz)
Voltage - Supply
20V

Order codes

1

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/tech-public/78L33" title="78L33 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/tech-public/78L33.jpg" alt="78L33" width="1200" height="900">
A picture that opens the part, for a README
[![78L33](https://pcbkit.io/embed/parts/tech-public/78L33.jpg?size=s)](https://pcbkit.io/parts/tech-public/78L33)

Questions

Is there a KiCad symbol and footprint for the 78L33?

Yes. 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 78L33?

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

Where is the 78L33 datasheet?

TECH PUBLIC publishes it: the Datasheet link on this page opens it.

Where can I order the 78L33?

JLCPCB lists it as part C22358675, with 2,961 in stock; the sellers' links on this page open their listings.

What can replace the 78L33?

Parts like it in the library: the AMS1117-3.3S by UMW, the L78L33ACU by STMicroelectronics, the HT7533-1 by UMW and the AMS1117-3.3 by GOODWORK. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8