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

TPS732

AKTIV

Hochpräziser Ultra-Low-Drop-Out-Spannungsregler, 250 mA, mit Gegenstromschutz und Aktivierung

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Produktdetails

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 5.5 Vin (min) (V) 1.7 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Fixed output options (V) 1.3, 1.5, 1.6, 1.8, 1.9, 2.5, 3, 3.3, 5 Rating Catalog Noise (µVrms) 30 PSRR at 100 KHz (dB) 32 Iq (typ) (mA) 0.4 Thermal resistance θJA (°C/W) 53 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Reverse Current Protection Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 40 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 5.5 Vin (min) (V) 1.7 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Fixed output options (V) 1.3, 1.5, 1.6, 1.8, 1.9, 2.5, 3, 3.3, 5 Rating Catalog Noise (µVrms) 30 PSRR at 100 KHz (dB) 32 Iq (typ) (mA) 0.4 Thermal resistance θJA (°C/W) 53 Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Reverse Current Protection Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 40 Operating temperature range (°C) -40 to 125
SOT-223 (DCQ) 6 45.89 mm² 6.5 x 7.06 SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 VSON (DRB) 8 9 mm² 3 x 3
  • Stable with no output capacitor or any value or type of capacitor
  • Input voltage range: 1.7V to 5.5V
  • Ultra-low dropout voltage: 40mV typical at 250mA
  • Excellent load transient response—with or without optional output capacitor
  • NMOS topology provides low reverse leakage current
  • Low noise: 30µVRMS typical (10kHz to 100kHz)
  • 0.5% initial accuracy
  • 1% overall accuracy (line, load, and temperature)
  • Less than 1µA maximum IQ in shutdown mode
  • Thermal shutdown and specified min and max current limit protection
  • Available in multiple output voltage versions:
    • Fixed outputs of 1.2V to 5V
    • Adjustable outputs from 1.2V to 5.5V
    • Custom outputs available
  • Stable with no output capacitor or any value or type of capacitor
  • Input voltage range: 1.7V to 5.5V
  • Ultra-low dropout voltage: 40mV typical at 250mA
  • Excellent load transient response—with or without optional output capacitor
  • NMOS topology provides low reverse leakage current
  • Low noise: 30µVRMS typical (10kHz to 100kHz)
  • 0.5% initial accuracy
  • 1% overall accuracy (line, load, and temperature)
  • Less than 1µA maximum IQ in shutdown mode
  • Thermal shutdown and specified min and max current limit protection
  • Available in multiple output voltage versions:
    • Fixed outputs of 1.2V to 5V
    • Adjustable outputs from 1.2V to 5.5V
    • Custom outputs available

The TPS732 low-dropout (LDO) voltage regulator uses an NMOS pass transistor in a voltage-follower configuration. This topology is stable using output capacitors with low equivalent series resistance (ESR), and even allows operation without a capacitor. The device also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS732 uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Current consumption, when not enabled, is less than 1µA and designed for portable applications. The extremely low output noise (30µVRMS with 0.1µF CNR) is designed for powering VCOs. This device is protected by thermal shutdown and foldback current limit.

The TPS732 low-dropout (LDO) voltage regulator uses an NMOS pass transistor in a voltage-follower configuration. This topology is stable using output capacitors with low equivalent series resistance (ESR), and even allows operation without a capacitor. The device also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS732 uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Current consumption, when not enabled, is less than 1µA and designed for portable applications. The extremely low output noise (30µVRMS with 0.1µF CNR) is designed for powering VCOs. This device is protected by thermal shutdown and foldback current limit.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet TPS732 Capacitor-Free, NMOS, 250mA, Low-Dropout Regulator With Reverse Current Protection datasheet (Rev. Q) PDF | HTML 10 Sep 2024
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Technical article LDO Basics: Thermals – How hot is your application? PDF | HTML 20 Sep 2017
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
User guide TPS73x01DRBEVM-518 User's Guide 13 Aug 2009
User guide DEM-SOT223LDO Demonstration Fixture 15 Okt 2003
More literature DMOS Delivers Dramatic Performance Gains to LDO Regulators (EDN mag) 14 Feb 2001

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