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LD1117S33 on a board, in 3D

LD1117S33

STMicroelectronics

0℃~+125℃@(Tj) 1 1.1V@(800mA) 100uV 15V 3.3V 5mA 75dB@(120Hz) 800mA Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS

Extended
DatasheetJLCPCBLCSCst/LD1117S33
Category
Voltage Regulators Linear, Low Drop Out (LDO) Regulators
Package
SOT-223
Pins
4

Overview

The LD1117S33 is a voltage Regulators Linear, Low Drop Out (LDO) Regulator made by STMicroelectronics in a SOT-223 package with 4 pins. 0℃~+125℃@(Tj) 1 1.1V@(800mA) 100uV 15V 3.3V 5mA 75dB@(120Hz) 800mA Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.

PCBKit's library has its KiCad symbol (Pinmap_Generic:Regulator_Linear_1GND_2OUT_3IN_4OUT, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_SMD:SOT-223, from KiCad's library), ready for a KiCad board. 21,045 are in stock at JLCPCB (part C86781). 27 open-source boards in 17 repositories on GitHub use it.

Symbol

IN3OUT2GND1
Pinmap_Generic:Regulator_Linear_1GND_2OUT_3IN_4OUTFrom PCBKit's generic symbols

Footprint

1234
Package_TO_SOT_SMD:SOT-223From KiCad's library

From the datasheet

12
Supply, most
15 V · Vin, operating input maximum, IO = 100 mA · p. 12
Supply, absolute maximum
15 V · VIN, absolute maximum · p. 7
Supply, absolute maximum
18 V · VIN, absolute maximum when IOUT < 20 mA · p. 7
Junction, hottest
125 °C · Operating junction temperature maximum, standard version · p. 7
Takes working
5 mA · Typical quiescent current, Vin ≤ 15 V · p. 12
Gives
800 mA · Rated output current up to 800 mA · p. 1
Output
3.3 V · Typical fixed output, Vin = 5.3 V, IO = 10 mA, TJ = 25 °C · p. 12
Dropout
1 V · Typical dropout, IO = 100 mA · p. 12
Dropout
1.05 V · Typical dropout, IO = 500 mA · p. 12
Dropout
1.1 V · Typical dropout, IO = 800 mA · p. 12
Junction to case (SOT-223)
15 K/W · Junction-case thermal resistance · p. 7
Junction to air (SOT-223)
110 K/W · Junction-ambient thermal resistance · p. 7

What it is and has

3
Output current
up to 800 mA · p. 1
Protection
Internal current and thermal limit · p. 1
Supply voltage rejection
75 dB typical · p. 1

Specifications

22
ParameterConditionsAs printedPage
DC input voltage VINmax 15 V7
DC input voltage VINIOUT lower than 20 mAmax 18 V7
Power dissipation PTOTmax 12 W7
Storage temperature range TSTGmin -40 · max 150 °C7
Operating junction temperature range TOPfor standard versionmin 0 · max 125 °C7
Thermal resistance junction-case RthJCSOT-223max 15 °C/W7
Thermal resistance junction-ambient RthJASOT-223max 110 °C/W7
Output voltage VOVin = 5.3 V, IO = 10 mA, TJ = 25 °C; CO = 10 uFmin 3.267 · typ 3.3 · max 3.333 V12
Output voltage VOIO = 0 to 800 mA, Vin = 4.75 to 10 V; TJ = 0 to 125 °C, CO = 10 uFmin 3.235 · max 3.365 V12
Line regulation ΔVOVin = 4.75 to 15 V, IO = 0 mA; TJ = 0 to 125 °C, CO = 10 uFtyp 1 · max 6 mV12
Load regulation ΔVOVin = 4.75 V, IO = 0 to 800 mA; TJ = 0 to 125 °C, CO = 10 uFtyp 1 · max 10 mV12
Temperature stability ΔVOTJ = 0 to 125 °C, CO = 10 uFtyp 0.5 %12
Long term stability ΔVO1000 hrs, TJ = 125 °C; CO = 10 uFtyp 0.3 %12
Operating input voltage VinIO = 100 mA; TJ = 0 to 125 °C, CO = 10 uFmax 15 V12
Quiescent current IdVin ≤ 15 V; TJ = 0 to 125 °C, CO = 10 uFtyp 5 · max 10 mA12
Output current IOVin = 8.3 V, TJ = 25 °C; CO = 10 uFmin 800 · typ 950 · max 1300 mA12
Output noise voltage eNB = 10 Hz to 10 kHz, TJ = 25 °C; CO = 10 uFtyp 100 uV12
Supply voltage rejection SVRIO = 40 mA, f = 120 Hz, TJ = 25 °C; Vin = 6.3 V, Vripple = 1 VPP; CO = 10 uFmin 60 · typ 75 dB12
Dropout voltage VdIO = 100 mA; TJ = 0 to 125 °C, CO = 10 uFtyp 1 · max 1.1 V12
Dropout voltage VdIO = 500 mA; TJ = 0 to 125 °C, CO = 10 uFtyp 1.05 · max 1.15 V12
Dropout voltage VdIO = 800 mA; TJ = 0 to 125 °C, CO = 10 uFtyp 1.1 · max 1.2 V12
Thermal regulationTa = 25 °C, 30 ms Pulse; CO = 10 uFtyp 0.01 · max 0.1 %/W12

Ordering codes, by the datasheet

1
LD1117S33TR
SOT-223 · 3.3 V output, standard version · p. 42

Parameters

19
Dropout Voltage
1.2V@(800mA)
Features
Over Current Protection
Junction Temperature(Max)
125℃
Maximum Input Voltage
15V
Noise
100uV
Number of Outputs
1
Operating Temperature
0℃~+125℃@(Tj)
Output Configuration
Positive
Output Current
800mA
Output Polarity
Positive
Output Type
Fixed
Output Voltage
3.3V
Power Supply Rejection Ratio (PSRR)
75dB@(120Hz)
Thermal Resistance(Junction to Ambient)
110℃/W
Thermal Resistance(Junction to Case)
15℃/W
Voltage - Supply
15V
Voltage - Supply(Absolute Max)
15V
Voltage Dropout
1.1V@(800mA)
standby current
5mA

Order codes

1

Pinout

4
The pins of the LD1117S33
PinNameType
1GNDPower in
2OUTPower out
3INPower in
4OUTPassive

Open-source boards using it

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    Radioberry preamp

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Questions

Is there a KiCad symbol and footprint for the LD1117S33?

Yes. The symbol is Pinmap_Generic:Regulator_Linear_1GND_2OUT_3IN_4OUT and the footprint Package_TO_SOT_SMD:SOT-223, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LD1117S33?

SOT-223, with 4 pins. Its footprint is drawn on this page.

Where is the LD1117S33 datasheet?

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

Where can I order the LD1117S33?

JLCPCB lists it as part C86781, with 21,045 in stock; the sellers' links on this page open their listings.

What can replace the LD1117S33?

Parts like it in the library: the NCP1117ST33 by onsemi, the AZ1117H-3.3TRE1 by Diodes Incorporated, the LD1117AG-33-AA3-A-R by UTC and the AZ1117CH-3.3TRG1 by Diodes Incorporated. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the LD1117S33?

27 boards in 17 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8