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LM1117-Q1

Name: LM1117-Q1
Brand: TI
SKU: LM1117-Q1
Price: 0.761 USD

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LDO-Linearregler (geringer Dropout) mit hohem Stromversorgungsunterdrückungsverhältnis, 1 A, 18 V, f

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Datenblatt

document-pdfAcrobat LM1117-Q1 18V, 1A, Automotive, Fixed-Output Linear Voltage Regulator datasheet (Rev. A) (Englisch) PDF | HTML

LM1117-Q1

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Datenblatt

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Produktdetails

Rating

Automotive

Vin (max) (V)

18

Vin (min) (V)

2.5

Iout (max) (A)

1

Output options

Fixed Output

Vout (max) (V)

12

Vout (min) (V)

1.2

Fixed output options (V)

1.2, 3.3, 5, 12

Noise (µVrms)

60

PSRR at 100 KHz (dB)

53

Iq (typ) (mA)

0.065

Features

Foldback Overcurrent protection

Thermal resistance θJA (°C/W)

67.2, 95

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Accuracy (%)

1

Dropout voltage (Vdo) (typ) (mV)

900

Operating temperature range (°C)

-40 to 125

Rating

Automotive

Vin (max) (V)

18

Vin (min) (V)

2.5

Iout (max) (A)

1

Output options

Fixed Output

Vout (max) (V)

12

Vout (min) (V)

1.2

Fixed output options (V)

1.2, 3.3, 5, 12

Noise (µVrms)

60

PSRR at 100 KHz (dB)

53

Iq (typ) (mA)

0.065

Features

Foldback Overcurrent protection

Thermal resistance θJA (°C/W)

67.2, 95

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Accuracy (%)

1

Dropout voltage (Vdo) (typ) (mV)

900

Operating temperature range (°C)

-40 to 125

SOT-223 (DCY)

4

45.5 mm² 6.5 x 7

TO-252 (KVU)

3

66.726 mm² 6.6 x 10.11

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Junction temperature: –40°C to +150°C, TJ
Input voltage range VIN:
- Absolute maximum: 20V
- Operating range: 2.5V to 18V
Output voltage range VOUT:
- 1.2V, 3.3V, 5V, 12V fixed
- 0.8V to 13.0V (fixed, 100mV steps) available upon request
Output current: Up to 1A
Low quiescent current IQ: 65µA (typical)
±1% output accuracy
High PSRR:
- 60dB at 1kHz
- 40dB at 1MHz
Internal soft-start time: 500µs (typical)
Foldback current limiting and thermal protection
Stable with 1µF ceramic output capacitors
Packages:
- SOT-223 (DCY), RθJA= 95.4°C/W
- TO-252 (KVU), RθJA= 67.2°C/W

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Junction temperature: –40°C to +150°C, TJ
Input voltage range VIN:
- Absolute maximum: 20V
- Operating range: 2.5V to 18V
Output voltage range VOUT:
- 1.2V, 3.3V, 5V, 12V fixed
- 0.8V to 13.0V (fixed, 100mV steps) available upon request
Output current: Up to 1A
Low quiescent current IQ: 65µA (typical)
±1% output accuracy
High PSRR:
- 60dB at 1kHz
- 40dB at 1MHz
Internal soft-start time: 500µs (typical)
Foldback current limiting and thermal protection
Stable with 1µF ceramic output capacitors
Packages:
- SOT-223 (DCY), RθJA= 95.4°C/W
- TO-252 (KVU), RθJA= 67.2°C/W

The LM1117-Q1 is an AEC-Q100 qualified linear voltage regulator for automotive applications. The device provides improved performance compared to traditional x1117 regulators, with tighter output accuracy and low quiescent current (IQ) to minimize standby power consumption.

The LM1117-Q1 input voltage range is from 2.5V to 18V (20V absolute maximum). The device is available in 1.2V, 3.3V, 5V, and 12V fixed output voltages.

The wide bandwidth PSRR performance of the LM1117-Q1 is typically greater than 60dB at 1kHz and 40dB at 1MHz, which attenuates the switching frequency of an upstream DC/DC converter.

Additionally, the LM1117-Q1 has an internal soft-start feature to reduce inrush current during start-up, which helps save space and cost in a design by minimizing the need for input capacitance. The LM1117-Q1 features a foldback current limit that reduces the power dissipation of the device during high-load current faults or shorting events.

The LM1117-Q1 is an AEC-Q100 qualified linear voltage regulator for automotive applications. The device provides improved performance compared to traditional x1117 regulators, with tighter output accuracy and low quiescent current (IQ) to minimize standby power consumption.

The LM1117-Q1 input voltage range is from 2.5V to 18V (20V absolute maximum). The device is available in 1.2V, 3.3V, 5V, and 12V fixed output voltages.

The wide bandwidth PSRR performance of the LM1117-Q1 is typically greater than 60dB at 1kHz and 40dB at 1MHz, which attenuates the switching frequency of an upstream DC/DC converter.

Additionally, the LM1117-Q1 has an internal soft-start feature to reduce inrush current during start-up, which helps save space and cost in a design by minimizing the need for input capacitance. The LM1117-Q1 features a foldback current limit that reduces the power dissipation of the device during high-load current faults or shorting events.

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	Typ	Titel		Datum
*	Data sheet	LM1117-Q1 18V, 1A, Automotive, Fixed-Output Linear Voltage Regulator datasheet (Rev. A)	PDF \| HTML	24 Jun 2025
	Application note	An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A)	PDF \| HTML	23 Sep 2025
	Application note	A Topical Index of TI LDO Application Notes (Rev. F)		27 Jun 2019
	E-book	LDO Basics (Rev. A)		08 Apr 2019
	Technical article	LDO basics: dropout	PDF \| HTML	16 Mär 2017

Design und Entwicklung

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Evaluierungsplatine

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Mit dem Multipaket-Evaluierungsmodul (EVM) für niedrige Dropout-Werte (LDO) MLTLDO2EVM-037 können Entwicklungsingenieure den Betrieb und die Leistung mehrerer gängiger Linearreglerpakete für den möglichen Einsatz in ihrer eigenen Schaltungsanwendung evaluieren. Diese EVM-Konfiguration enthält einen (...)

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Evaluierungsplatine

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The TLV1117LV33EVM-714 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TLV1117LVxx device, which is a 1-A, positive fixed-voltage low-dropout (LDO) linear regulator.

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Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
SOT-223 (DCY)	4	Ultra Librarian
TO-252 (KVU)	3	Ultra Librarian

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LM1117-Q1

LDO-Linearregler (geringer Dropout) mit hohem Stromversorgungsunterdrückungsverhältnis, 1 A, 18 V, f

LM1117-Q1

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