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

TPS712

AKTIV

Zweikanaliger Low-Dropout-Spannungsregler mit 250 mA und Aktivierung

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TLV751 AKTIV 500 mA, niedriger IQ, hoher PSRR-Wert, Zweikanal-Low-Dropout (LDO)-Spannungsregler Alternative dual LDO with high accuracy in a 2x2 WSON package

TPS712

AKTIV
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Produktdetails

Output options Adjustable Output, Dual output, Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 5.4 Vout (min) (V) 1.2 Fixed output options (V) 1.8, 2.8, 2.85 Noise (µVrms) 32 Iq (typ) (mA) 0.3 Thermal resistance θJA (°C/W) 50 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 2 Features Enable Accuracy (%) 3 PSRR at 100 KHz (dB) 37 Dropout voltage (Vdo) (typ) (mV) 125 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Dual output, Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 5.4 Vout (min) (V) 1.2 Fixed output options (V) 1.8, 2.8, 2.85 Noise (µVrms) 32 Iq (typ) (mA) 0.3 Thermal resistance θJA (°C/W) 50 Rating Catalog Load capacitance (min) (µF) 2.2 Regulated outputs (#) 2 Features Enable Accuracy (%) 3 PSRR at 100 KHz (dB) 37 Dropout voltage (Vdo) (typ) (mV) 125 Operating temperature range (°C) -40 to 125
VSON (DRC) 10 9 mm² 3 x 3
  • Dual 250 mA High-Performance RF LDOs
  • Available in Fixed and Adjustable
    Voltage Options (1.2 V to 5.5 V)
  • High PSRR: 65 dB at 10 kHz
  • UltraLow Noise: 32 µVrms
  • Fast Start-Up Time: 60 µs
  • Stable with 2.2 µF Ceramic Capacitor
  • Excellent Load/Line Transient Response
  • Very Low Dropout Voltage: 125 mV at 250 mA
  • Independent Enable Pins
  • Thermal Shutdown and Independent Current Limit
  • Available in Thermally-Enhanced SON Package: 3mm × 3mm × 1mm
  • APPLICATIONS
    • Cellular and Cordless Phones
    • Wireless PDA/Handheld Products
    • PCMCIA/Wireless LAN Applications
    • Digital Camera/Camcorder/Internet Audio
    • DSP/FPGA/ASIC/Controllers and Processors
  • Dual 250 mA High-Performance RF LDOs
  • Available in Fixed and Adjustable
    Voltage Options (1.2 V to 5.5 V)
  • High PSRR: 65 dB at 10 kHz
  • UltraLow Noise: 32 µVrms
  • Fast Start-Up Time: 60 µs
  • Stable with 2.2 µF Ceramic Capacitor
  • Excellent Load/Line Transient Response
  • Very Low Dropout Voltage: 125 mV at 250 mA
  • Independent Enable Pins
  • Thermal Shutdown and Independent Current Limit
  • Available in Thermally-Enhanced SON Package: 3mm × 3mm × 1mm
  • APPLICATIONS
    • Cellular and Cordless Phones
    • Wireless PDA/Handheld Products
    • PCMCIA/Wireless LAN Applications
    • Digital Camera/Camcorder/Internet Audio
    • DSP/FPGA/ASIC/Controllers and Processors

The TPS712xx family of low-dropout (LDO) voltage regulators is tailored to noise-sensitive and RF applications. These products feature dual 250 mA LDOs with ultralow noise, high power-supply rejection ratio (PSRR), and fast transient and start-up response. Each regulator output is stable with low-cost 2.2 µF ceramic output capacitors and features very low dropout voltages (125 mV typical at 250 mA). Each regulator achieves fast start-up times (approximately 60 µs with a 0.001 µF bypass capacitor) while consuming very low quiescent current (300 µA typical with both outputs enabled). When the device is placed in standby mode, the supply current is reduced to less than 0.3 µA typical. Each regulator exhibits approximately 32 µrms of output voltage noise with VOUT = 2.8 V and a 0.01 µF noise reduction (NR) capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, will benefit from high PSRR, low noise, and fast line and load transient features. The TPS712 family is offered in a thin 3mm × 3mm SON package and is fully specified from –40°C to +125°C (TJ).

The TPS712xx family of low-dropout (LDO) voltage regulators is tailored to noise-sensitive and RF applications. These products feature dual 250 mA LDOs with ultralow noise, high power-supply rejection ratio (PSRR), and fast transient and start-up response. Each regulator output is stable with low-cost 2.2 µF ceramic output capacitors and features very low dropout voltages (125 mV typical at 250 mA). Each regulator achieves fast start-up times (approximately 60 µs with a 0.001 µF bypass capacitor) while consuming very low quiescent current (300 µA typical with both outputs enabled). When the device is placed in standby mode, the supply current is reduced to less than 0.3 µA typical. Each regulator exhibits approximately 32 µrms of output voltage noise with VOUT = 2.8 V and a 0.01 µF noise reduction (NR) capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, will benefit from high PSRR, low noise, and fast line and load transient features. The TPS712 family is offered in a thin 3mm × 3mm SON package and is fully specified from –40°C to +125°C (TJ).
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Technische Dokumentation

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Typ Titel Datum
* Data sheet Dual 250-mA Output, UltraLow Noise, High PSRR, Low-Dropout Linear Regulator datasheet (Rev. D) 17 Aug 2010
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 Aug 2020
Application note Using Thermal Calculation Tools for Analog Components (Rev. A) 30 Aug 2019
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 Aug 2017
Application note Power for TMS320C5504/05 (Rev. A) 23 Apr 2010
Application note Powering OMAP™3 With TPS6235x: Design-In Guide 03 Dez 2008
EVM User's guide TPS712xxEVM User's Guide 07 Feb 2005

Design und Entwicklung

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Schaltplan

Schematic for PR785: Discrete Power Solution for OMAP3503 & OMAP3515

SLUA480.PDF (129 KB)
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Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
VSON (DRC) 10 Ultra Librarian
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