L78L05ABUTR

STMicroelectronicsExtended

-40℃~+125℃@(Tj) 1 1.7V@(40mA) 100mA 30V 40uV 49dB@(120Hz) 5V 6mA Fixed Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS

Datasheet JLCPCB LCSC

Part id: st/L78L05ABUTR
Category: Voltage Regulators, Linear, Low Drop Out (LDO) Regulators
Package: SOT-89-3
Pins: 3
In stock: 171,334 at JLCPCB (C42738)
Used on: 5 open-source boards

Overview

The L78L05ABUTR 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 40uV 49dB@(120Hz) 5V 6mA 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. 171,334 are in stock at JLCPCB (part C42738). 5 open-source boards in 5 repositories on GitHub use it.

Symbol

Pinmap_Generic:Regulator_Linear_1OUT_2GND_3INFrom PCBKit's generic symbols

Footprint

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

From the datasheet

Supply, absolute maximum: 30 V · VI, absolute maximum for VO = 5 V · p. 5
Junction, hottest: 125 °C · maximum operating junction temperature, L78LxxAB · p. 5
Gives: 100 mA · maximum output current with adequate heat sinking · p. 1
Takes working: 6 mA · max quiescent current, TJ = 25 °C, VI = 10 V, IO = 40 mA · p. 16
Output: 5 V · typical output voltage, TJ = 25 °C · p. 16
Dropout: 1.7 V · typical dropout voltage, IO = 40 mA · p. 16
Junction to case (SOT-89): 15 K/W · maximum junction-case thermal resistance · p. 5
Junction to air (SOT-89): 55 K/W · maximum junction-ambient thermal resistance, 6 cm² copper board heat-sink · p. 5

What it is and has

Output current: up to 100 mA · p. 1
Protection: Short-circuit protection · p. 1
External components: No external components are required · p. 1
Protection: Internal current limiting · p. 1
Protection: Thermal shutdown · p. 1

Specifications

Parameter	Conditions	As printed	Page
DC Input voltage VI	VO = 3.3 to 9 V; L78L05AB	max 30 V	5
Output current IO	L78L05AB	max 100 mA	5
Storage temperature range TSTG	L78L05AB	min -65 · max 150 °C	5
Operating junction temperature range TOP	L78LxxAB	min -40 · max 125 °C	5
Thermal resistance junction-case (max) RthJC	SOT-89	max 15 °C/W	5
Thermal resistance junction-ambient (max) RthJA	SOT-89; considering 6 cm² of copper Board heat-sink	max 55 °C/W	5
Output voltage VO	L78L05AB; TJ = 25 °C, VI = 10 V, IO = 40 mA, CI = 0.33 uF, CO = 0.1 uF	min 4.8 · typ 5 · max 5.2 V	16
Output voltage VO	L78L05AB; IO = 1 to 40 mA, VI = 7 to 20 V, TJ = -40 to 125 °C, CI = 0.33 uF, CO = 0.1 uF	min 4.75 · max 5.25 V	16
Output voltage VO	L78L05AB; IO = 1 to 70 mA, VI = 10 V, TJ = -40 to 125 °C, CI = 0.33 uF, CO = 0.1 uF	min 4.75 · max 5.25 V	16
Line regulation DVO	L78L05AB; VI = 7 to 20 V, TJ = 25 °C, IO = 40 mA, CI = 0.33 uF, CO = 0.1 uF	max 150 mV	16
Line regulation DVO	L78L05AB; VI = 8 to 20 V, TJ = 25 °C, IO = 40 mA, CI = 0.33 uF, CO = 0.1 uF	max 100 mV	16
Load regulation DVO	L78L05AB; IO = 1 to 100 mA, TJ = 25 °C, VI = 10 V, CI = 0.33 uF, CO = 0.1 uF	max 60 mV	16
Load regulation DVO	L78L05AB; IO = 1 to 40 mA, TJ = 25 °C, VI = 10 V, CI = 0.33 uF, CO = 0.1 uF	max 30 mV	16
Quiescent current Id	L78L05AB; TJ = 25 °C, VI = 10 V, IO = 40 mA, CI = 0.33 uF, CO = 0.1 uF	max 6 mA	16
Quiescent current Id	L78L05AB; TJ = 125 °C, VI = 10 V, IO = 40 mA, CI = 0.33 uF, CO = 0.1 uF	max 5.5 mA	16
Quiescent current change DId	L78L05AB; IO = 1 to 40 mA, VI = 10 V, TJ = -40 to 125 °C, CI = 0.33 uF, CO = 0.1 uF	max 0.1 mA	16
Quiescent current change DId	L78L05AB; VI = 8 to 20 V, IO = 40 mA, TJ = -40 to 125 °C, CI = 0.33 uF, CO = 0.1 uF	max 1.5 mA	16
Output noise voltage eN	L78L05AB; B = 10 Hz to 100 kHz, TJ = 25 °C, VI = 10 V, IO = 40 mA, CI = 0.33 uF, CO = 0.1 uF	typ 40 uV	16
Supply voltage rejection SVR	L78L05AB; VI = 8 to 18 V, f = 120 Hz, IO = 40 mA, TJ = 25 °C, CI = 0.33 uF, CO = 0.1 uF	min 41 · typ 49 dB	16
Dropout voltage Vd	L78L05AB; TJ = -40 to 125 °C, VI = 10 V, IO = 40 mA, CI = 0.33 uF, CO = 0.1 uF	typ 1.7 V	16

Pins, by the datasheet

1 VOUT: Regulated output. · p. 4
2 GND: Ground. · p. 4
3 VIN: Input supply. · p. 4

Ordering codes, by the datasheet

L78L05ABUTR: SOT-89 · 5 V output · p. 42

Parameters

Dropout Voltage: 1.7V@(40mA)
Features: Over Current Protection
Junction Temperature(Max): 125℃
Maximum Input Voltage: 30V
Noise: 40uV
Number of Outputs: 1
Operating Temperature: -40℃~+125℃@(Tj)
Output Configuration: Positive
Output Current: 100mA
Output Polarity: Positive
Output Type: Fixed
Output Voltage: 5V
Power Supply Rejection Ratio (PSRR): 49dB@(120Hz)
Thermal Resistance(Junction to Ambient): 55℃/W
Thermal Resistance(Junction to Case): 15℃/W
Voltage - Supply: 30V
Voltage - Supply(Absolute Max): 30V
Voltage Dropout: 1.7V
standby current: 6mA

Order codes

L78L05ABUTRLCSC C42738

Pinout

The pins of the L78L05ABUTR
Pin	Name	Type
1	OUT	Power out
2	GND	Power in
3	IN	Power in

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Parts like it

Questions

Is there a KiCad symbol and footprint for the L78L05ABUTR?

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 L78L05ABUTR?

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

Where is the L78L05ABUTR datasheet?

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

Where can I order the L78L05ABUTR?

JLCPCB lists it as part C42738, with 171,334 in stock; the sellers' links on this page open their listings.

What can replace the L78L05ABUTR?

Parts like it in the library: the AS78L05RTR-E1 by Diodes Incorporated, the HT7550-1 by UMW, the 78L05 by UMW and the 78L05G-AB3-R by UTC. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the L78L05ABUTR?

5 boards in 5 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Overview

Symbol

Footprint

From the datasheet

What it is and has

Specifications

Pins, by the datasheet

Ordering codes, by the datasheet

Open-source boards using it

Voltage Sensor Card

PWM+fan stop

AudioInterface

Voltage Sensor Card

BSPD 2027

Parts like it

AS78L05RTR-E1

HT7550-1

78L05

78L05G-AB3-R

HT7550-1

78L05

78L05

HT7150-1

Questions

Is there a KiCad symbol and footprint for the L78L05ABUTR?

What package is the L78L05ABUTR?

Where is the L78L05ABUTR datasheet?

Where can I order the L78L05ABUTR?

What can replace the L78L05ABUTR?

Which open-source boards use the L78L05ABUTR?