Startseite Energiemanagement Linear- und Low-Dropout-Regler (LDO)
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Linear- und Low-Dropout-Regler (LDO)

LP2982

AKTIV

Low-Drop-Out-Spannungsregler, 50 mA, 16 V, mit geringem Rauschen & Aktivierung

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TPS7A24 AKTIV Low-Dropout-Spannungsregler (LDO), 200 mA, 18 V, extrem niedriger Ruhestrom, mit Aktivierung Pin-to-pin option with ultra-low-IQ (2 µA)

LP2982

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Output options Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 16 Vin (min) (V) 3.12 Vout (max) (V) 5 Vout (min) (V) 3 Fixed output options (V) 3, 3.3, 5 Noise (µVrms) 30 Iq (typ) (mA) 0.065 Thermal resistance θJA (°C/W) 176 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 2.3 PSRR at 100 KHz (dB) 38 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 16 Vin (min) (V) 3.12 Vout (max) (V) 5 Vout (min) (V) 3 Fixed output options (V) 3, 3.3, 5 Noise (µVrms) 30 Iq (typ) (mA) 0.065 Thermal resistance θJA (°C/W) 176 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable Accuracy (%) 2.3 PSRR at 100 KHz (dB) 38 Dropout voltage (Vdo) (typ) (mV) 120 Operating temperature range (°C) -40 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
  • 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 50 mA
  • Low I Q (new chip): 69 µA at I LOAD = 0 mA
  • Low I Q (new chip): 380 µA at I LOAD = 50 mA
  • Shutdown current:
    • 1 µA for legacy chip
    • 2.25 µA 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 (new chip)
  • 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
  • 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 50 mA
  • Low I Q (new chip): 69 µA at I LOAD = 0 mA
  • Low I Q (new chip): 380 µA at I LOAD = 50 mA
  • Shutdown current:
    • 1 µA for legacy chip
    • 2.25 µA 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 (new chip)
  • 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 LP2982 is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V (for new chip) and up to 50 mA of load current. The LP2982 supports an output range of 1.2 V to 5.0 V (for new chip).

Additionally, the LP2982 (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 LP2982 is available in a 5-pin 2.9-mm × 2.8-mm SOT-23 (DBV) package.

The LP2982 is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V (for new chip) and up to 50 mA of load current. The LP2982 supports an output range of 1.2 V to 5.0 V (for new chip).

Additionally, the LP2982 (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 LP2982 is available in a 5-pin 2.9-mm × 2.8-mm SOT-23 (DBV) package.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet LP2982 50-mA, Low-Noise, Low-Dropout Regulator in SOT-23 Package datasheet (Rev. L) PDF | HTML 06 Dez 2023
Application note AN-1172 LP2980, LP2981, LP2982, LP2985 Micro SMD Demo Boards (Rev. B) 25 Apr 2013
Application note AN-1061 Power Conversion in Line-Powered Equipment (Rev. B) 23 Apr 2013
White paper Engineers note: Capacitors are key to voltage regulator design 01 Jul 2002

Design und Entwicklung

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