Inicio Gestión de la energía Reguladores lineales y de baja salida (LDO)
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Gestión de la energía
Reguladores lineales y de baja salida (LDO)

TPS712

ACTIVO

Regulador de tensión de caída baja, canal doble de 250 mA, con activación

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TLV751 ACTIVO Regulador de tensión de caída baja (LDO), canal doble, alta PSRR, baja IQ, 500 mA Alternative dual LDO with high accuracy in a 2x2 WSON package

TPS712

ACTIVO
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Detalles del producto

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 Rating Catalog Noise (µVrms) 32 PSRR at 100 KHz (dB) 37 Iq (typ) (mA) 0.3 Thermal resistance θJA (°C/W) 50 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 2 Features Enable Accuracy (%) 3 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 Rating Catalog Noise (µVrms) 32 PSRR at 100 KHz (dB) 37 Iq (typ) (mA) 0.3 Thermal resistance θJA (°C/W) 50 Load capacitance (min) (µF) 2.2 Regulated outputs (#) 2 Features Enable Accuracy (%) 3 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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Documentación técnica

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

Diseño y desarrollo

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Esquema

Schematic for PR785: Discrete Power Solution for OMAP3503 & OMAP3515

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