LP2985A

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Spannungsregler, 150 mA, 16 V, Low-Dropout (LDO), mit hoher Genauigkeit

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Datenblatt

document-pdfAcrobat LP2985 150mA, Low-Noise, Low-Dropout Regulator With Shutdown datasheet (Rev. S) (Englisch) PDF | HTML

LP2985A

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Vin (max) (V)

16

Vin (min) (V)

2.2

Iout (max) (A)

0.15

Output options

Fixed Output

Vout (max) (V)

10

Vout (min) (V)

1.8

Fixed output options (V)

1.8, 2.5, 2.8, 2.9, 3, 3.3, 5, 10

Noise (µVrms)

30

PSRR at 100 KHz (dB)

40

Iq (typ) (mA)

0.065

Features

Enable

Thermal resistance θJA (°C/W)

206

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Accuracy (%)

3

Dropout voltage (Vdo) (typ) (mV)

280

Operating temperature range (°C)

-45 to 125

Rating

Catalog

Vin (max) (V)

16

Vin (min) (V)

2.2

Iout (max) (A)

0.15

Output options

Fixed Output

Vout (max) (V)

10

Vout (min) (V)

1.8

Fixed output options (V)

1.8, 2.5, 2.8, 2.9, 3, 3.3, 5, 10

Noise (µVrms)

30

PSRR at 100 KHz (dB)

40

Iq (typ) (mA)

0.065

Features

Enable

Thermal resistance θJA (°C/W)

206

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Accuracy (%)

3

Dropout voltage (Vdo) (typ) (mV)

280

Operating temperature range (°C)

-45 to 125

SOT-23 (DBV)

5

8.12 mm² 2.9 x 2.8

VIN range (new chip): 2.5V to 16V
VOUT range (new chip):
- 1.2V to 5.0V (fixed, 100mV steps)
VOUT accuracy:
- ±1% for A-grade (legacy chip)
- ±1.5% for standard-grade (legacy chip)
- ±0.5% (new chip)
±1% output accuracy over load and temperature (new chip)
Output current: Up to 150mA
Low IQ (new chip): 71µA at ILOAD = 0mA
Low IQ (new chip): 750µA at ILOAD = 150mA
Shutdown current:
- 0.01µA (typ, legacy chip)
- 1.12µA (typ, new chip)
Low noise: 30µVRMS with 10nF bypass capacitor
Output current limiting and thermal protection
Stable with 2.2µF ceramic capacitors (new chip)
High PSRR: 70dB at 1kHz, 40dB at 1MHz (new chip)
Operating junction temperature: –40°C to +125°C
Package: 5-pin SOT-23 (DBV)

VIN range (new chip): 2.5V to 16V
VOUT range (new chip):
- 1.2V to 5.0V (fixed, 100mV steps)
VOUT accuracy:
- ±1% for A-grade (legacy chip)
- ±1.5% for standard-grade (legacy chip)
- ±0.5% (new chip)
±1% output accuracy over load and temperature (new chip)
Output current: Up to 150mA
Low IQ (new chip): 71µA at ILOAD = 0mA
Low IQ (new chip): 750µA at ILOAD = 150mA
Shutdown current:
- 0.01µA (typ, legacy chip)
- 1.12µA (typ, new chip)
Low noise: 30µVRMS with 10nF bypass capacitor
Output current limiting and thermal protection
Stable with 2.2µF ceramic capacitors (new chip)
High PSRR: 70dB at 1kHz, 40dB at 1MHz (new chip)
Operating junction temperature: –40°C to +125°C
Package: 5-pin SOT-23 (DBV)

The LP2985 is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5V to 16V (for new chip) and up to 150mA of load current. The LP2985 supports an output range of 1.2V to 5.0V (for new chip).

Additionally, the LP2985 (new chip) has a ±1% output accuracy across load, and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.

Low output noise of 30µVRMS (with 10nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70dB at 1kHz and 40dB at 1MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The new chip provides internal soft-start mechanism to reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are also included.

The LP2985 is available in a 5-pin 2.9mm × 2.8mm SOT-23 (DBV) package.

The LP2985 is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5V to 16V (for new chip) and up to 150mA of load current. The LP2985 supports an output range of 1.2V to 5.0V (for new chip).

Additionally, the LP2985 (new chip) has a ±1% output accuracy across load, and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors.

Low output noise of 30µVRMS (with 10nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70dB at 1kHz and 40dB at 1MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The new chip provides internal soft-start mechanism to reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are also included.

The LP2985 is available in a 5-pin 2.9mm × 2.8mm SOT-23 (DBV) package.

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	Typ	Titel		Datum
*	Data sheet	LP2985 150mA, Low-Noise, Low-Dropout Regulator With Shutdown datasheet (Rev. S)	PDF \| HTML	23 Mai 2025

Design und Entwicklung

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LP2985-10 PSpice Transient Model

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LP2985A

Spannungsregler, 150 mA, 16 V, Low-Dropout (LDO), mit hoher Genauigkeit

LP2985A

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