Skip to the content
PCBKitNew board
LR7544-T on a board, in 3D

LR7544-T

LR

-40℃~+85℃@(Ta) 1 1.8uA 100mA 24V 290mV@(100mA) 4.4V Fixed Over Current Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS

Extended
DatasheetJLCPCBLCSClr/LR7544-T
Category
Voltage Regulators Linear, Low Drop Out (LDO) Regulators
Package
SOT-23
Pins
3

Overview

The LR7544-T is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by LR in a SOT-23 package with 3 pins. -40℃~+85℃@(Ta) 1 1.8uA 100mA 24V 290mV@(100mA) 4.4V Fixed Over Current Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.

PCBKit's library has its KiCad symbol (Pinmap_Generic:Regulator_Linear_1GND_2OUT_3IN, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 3,004 are in stock at JLCPCB (part C486072).

Symbol

IN3OUT2GND1
Pinmap_Generic:Regulator_Linear_1GND_2OUT_3INFrom PCBKit's generic symbols

Footprint

123
Package_TO_SOT_SMD:SOT-23From KiCad's library

Parameters

11
Features
Over Current Protection
Number of Outputs
1
Operating Temperature
-40℃~+85℃@(Ta)
Output Configuration
Positive
Output Current
100mA
Output Type
Fixed
Output Voltage
4.4V
Power Supply Rejection Ratio (PSRR)
75dB@(100Hz)
Voltage - Supply
24V
Voltage Dropout
290mV@(100mA)
standby current
1.8uA

Order codes

1

Pinout

3
The pins of the LR7544-T
PinNameType
1GNDPower in
2OUTPower out
3INPower in

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/lr/LR7544-T" title="LR7544-T 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/lr/LR7544-T.jpg" alt="LR7544-T" width="1200" height="900">
A picture that opens the part, for a README
[![LR7544-T](https://pcbkit.io/embed/parts/lr/LR7544-T.jpg?size=s)](https://pcbkit.io/parts/lr/LR7544-T)

Questions

Is there a KiCad symbol and footprint for the LR7544-T?

Yes. The symbol is Pinmap_Generic:Regulator_Linear_1GND_2OUT_3IN and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LR7544-T?

SOT-23, with 3 pins. Its footprint is drawn on this page.

Where is the LR7544-T datasheet?

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

Where can I order the LR7544-T?

JLCPCB lists it as part C486072, with 3,004 in stock; the sellers' links on this page open their listings.

What can replace the LR7544-T?

Parts like it in the library: the ME6208A44M3G by MICRONE, the HT7544-1 by MSKSEMI, the HT7144S by UMW and the ME6203A44M3G by MICRONE. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8