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

LP3988

AKTIV

Low-Dropout-Spannungsregler, 150 mA, mit Power-Good- und Aktivierungsfunktion

Produktdetails

Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 6 Vin (min) (V) 2.5 Vout (max) (V) 3.3 Vout (min) (V) 1.8 Fixed output options (V) 1.85, 2.5, 2.6, 2.85, 3, 3.3 Rating Catalog Noise (µVrms) 220 PSRR at 100 KHz (dB) 19 Iq (typ) (mA) 0.085 Thermal resistance θJA (°C/W) 171 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 80 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 6 Vin (min) (V) 2.5 Vout (max) (V) 3.3 Vout (min) (V) 1.8 Fixed output options (V) 1.85, 2.5, 2.6, 2.85, 3, 3.3 Rating Catalog Noise (µVrms) 220 PSRR at 100 KHz (dB) 19 Iq (typ) (mA) 0.085 Thermal resistance θJA (°C/W) 171 Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 80 Operating temperature range (°C) -40 to 125
DSBGA (YZR) 5 2.02 mm² 1.616 x 1.25 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Input Voltage Range: 2.5 V to 6 V
  • Output Current: 150 mA
  • PSRR at 10 kHz: 40 dB
  • Quiescent Current When Shut Down: ≤ 1µA
  • Fast Turnon Time: 100 µs (Typical)
  • Dropout With 150-mA load: 80 mV (Typical)
  • Junction Temperature Range for Operation: −40°C to +125°C
  • Power-Good Flag Output
  • Logic Controlled Enable
  • Thermal Shutdown and Short-Circuit Current Limit
  • Stable with Ceramic and High-Quality Tantalum Capacitors
  • Input Voltage Range: 2.5 V to 6 V
  • Output Current: 150 mA
  • PSRR at 10 kHz: 40 dB
  • Quiescent Current When Shut Down: ≤ 1µA
  • Fast Turnon Time: 100 µs (Typical)
  • Dropout With 150-mA load: 80 mV (Typical)
  • Junction Temperature Range for Operation: −40°C to +125°C
  • Power-Good Flag Output
  • Logic Controlled Enable
  • Thermal Shutdown and Short-Circuit Current Limit
  • Stable with Ceramic and High-Quality Tantalum Capacitors

The LP3988 is a 150-mA low dropout regulator designed specially to meet requirements of portable battery applications. The LP3988 is designed to work with space-saving, small 1-µF ceramic capacitors. The LP3988 features a Power Good (PG) output that indicates a faulty output condition. The device is ideal for mobile phone and similar battery-powered wireless applications. It provides up to 150 mA output current from a 2.5-V to 6-V input, consuming less than 1 µA in disable mode and has fast turnon time less than 200 µs.

The LP3988 device's performance is optimized for battery-powered systems to deliver low noise, extremely low dropout voltage, and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.

Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. High power-supply rejection is maintained down to lower input-voltage levels common to battery-operated circuits.

The LP3988 is available in a 5-pin SOT-23 package and a 5-pin thin DSBGA package. Performance is specified for −40°C to +125°C temperature range. For all available output voltage and package options, see the Package Option Addendum (POA) at the end of the data sheet.

For all available packages, see the orderable addendum at the end of the data sheet. Body size dimension is maximum.

The LP3988 is a 150-mA low dropout regulator designed specially to meet requirements of portable battery applications. The LP3988 is designed to work with space-saving, small 1-µF ceramic capacitors. The LP3988 features a Power Good (PG) output that indicates a faulty output condition. The device is ideal for mobile phone and similar battery-powered wireless applications. It provides up to 150 mA output current from a 2.5-V to 6-V input, consuming less than 1 µA in disable mode and has fast turnon time less than 200 µs.

The LP3988 device's performance is optimized for battery-powered systems to deliver low noise, extremely low dropout voltage, and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life.

Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. High power-supply rejection is maintained down to lower input-voltage levels common to battery-operated circuits.

The LP3988 is available in a 5-pin SOT-23 package and a 5-pin thin DSBGA package. Performance is specified for −40°C to +125°C temperature range. For all available output voltage and package options, see the Package Option Addendum (POA) at the end of the data sheet.

For all available packages, see the orderable addendum at the end of the data sheet. Body size dimension is maximum.

Herunterladen Video mit Transkript ansehen Video

Technische Dokumentation

star =Von TI ausgewählte Top-Empfehlungen für dieses Produkt
Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.
Alle anzeigen 1
Typ Titel Datum
* Data sheet LP3988 Micropower, 150-mA Ultra-Low-Dropout CMOS Voltage Regulator With Power Good datasheet (Rev. E) PDF | HTML 27 Okt 2015

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
DSBGA (YZR) 5 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian

Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

Empfohlene Produkte können Parameter, Evaluierungsmodule oder Referenzdesigns zu diesem TI-Produkt beinhalten.

Support und Schulungen

TI E2E™-Foren mit technischem Support von TI-Ingenieuren

Inhalte werden ohne Gewähr von TI und der Community bereitgestellt. Sie stellen keine Spezifikationen von TI dar. Siehe Nutzungsbedingungen.

Bei Fragen zu den Themen Qualität, Gehäuse oder Bestellung von TI-Produkten siehe TI-Support. ​​​​​​​​​​​​​​

Videos