LP2985A

ACTIVE

150-mA 16-V low-dropout (LDO) voltage regulator with high-accuracy

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Data sheet

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

LP2985A

ACTIVE

Data sheet

Order now

Product details

Output options

Fixed Output

Iout (max) (A)

0.15

Vin (max) (V)

16

Vin (min) (V)

2.2

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

Rating

Catalog

Noise (µVrms)

30

PSRR at 100 KHz (dB)

40

Iq (typ) (mA)

0.065

Thermal resistance θJA (°C/W)

206

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Features

Enable

Accuracy (%)

3

Dropout voltage (Vdo) (typ) (mV)

280

Operating temperature range (°C)

-45 to 125

Output options

Fixed Output

Iout (max) (A)

0.15

Vin (max) (V)

16

Vin (min) (V)

2.2

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

Rating

Catalog

Noise (µVrms)

30

PSRR at 100 KHz (dB)

40

Iq (typ) (mA)

0.065

Thermal resistance θJA (°C/W)

206

Load capacitance (min) (µF)

2.2

Regulated outputs (#)

1

Features

Enable

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

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

V IN range (new chip): 2.5 V to 16 V
V OUT range (new chip):
- 1.2 V to 5.0 V (fixed, 100-mV steps)
V OUT accuracy:
- ±1% for A-grade legacy chip
- ±1.5% for standard-grade legacy chip
- ±0.5% for new chip only
±1% output accuracy over load, and temperature for new chip
Output current: Up to 150 mA
Low I Q (new chip): 71 µA at I LOAD = 0 mA
Low I Q (new chip): 750 µA at I LOAD = 150 mA
Shutdown current:
- 0.01 µA (typ) for legacy chip
- 1.12 µA (typ) for new chip
Low noise: 30 µV RMS with 10-nF bypass capacitor
Output current limiting and thermal protection
Stable with 2.2-µF ceramic capacitors
High PSRR: 70 dB at 1 kHz, 40 dB at 1 MHz
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 2.5 V to 16 V and up to 150 mA of load current. The LP2985 supports an output range of 1.2 V to 5.0 V (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 30 µV RMS (with 10-nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70 dB at 1 kHz and 40 dB at 1 MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The internal soft-start time and current limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.

The LP2985 is available in a 5-pin 2.9-mm × 1.6-mm SOT-23 (DBV) package.

The LP2985 is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V and up to 150 mA of load current. The LP2985 supports an output range of 1.2 V to 5.0 V (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 30 µV RMS (with 10-nF bypass capacitors) and wide bandwidth PSRR performance of greater than 70 dB at 1 kHz and 40 dB at 1 MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering.

The internal soft-start time and current limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features, such as overcurrent and overtemperature protection, are included.

The LP2985 is available in a 5-pin 2.9-mm × 1.6-mm SOT-23 (DBV) package.

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