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)

TPS770

ACTIVO

Regulador de tensión de caída baja de 50 mA, 10 V e IQ baja

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TPS769 ACTIVO Regulador de tensión de caída baja de 100 mA, 10 V e IQ baja, con activación Higher Iout
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TLV767 ACTIVO Regulador lineal de caída baja (LDO), salida fija y ajustable, 1 A, 16 V, tensión positiva Alternative product offering better accuracy, better PSRR, lower Iq and wider input voltage
TPS7A24 ACTIVO Regulador de tensión de 200 mA, 18 V, IQ ultrabaja, caída baja (LDO) con activación SOT-23-5 package option offering wider VIN (18 V) and ultra-low-IQ (2 µA)

TPS770

ACTIVO
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Detalles del producto

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Fixed output options (V) 1.2, 1.5, 1.8, 2.5, 2.7, 2.8, 3, 3.3, 5 Noise (µVrms) 190 Iq (typ) (mA) 0.017 Thermal resistance θJA (°C/W) 180 Rating Catalog Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR at 100 KHz (dB) 27 Dropout voltage (Vdo) (typ) (mV) 48 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Fixed output options (V) 1.2, 1.5, 1.8, 2.5, 2.7, 2.8, 3, 3.3, 5 Noise (µVrms) 190 Iq (typ) (mA) 0.017 Thermal resistance θJA (°C/W) 180 Rating Catalog Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR at 100 KHz (dB) 27 Dropout voltage (Vdo) (typ) (mV) 48 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 50-mA Low-Dropout Regulator
  • Available in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V Fixed-Output and Adjustable Versions
  • Only 17 uA Quiescent Current at 50 mA
  • 1 uA Quiescent Current in Standby Mode
  • Dropout Voltage Typically 35 mV at 50 mA
  • Over Current Limitation
  • \x9640°C to 125°C Operating Junction Temperature Range
  • 5-Pin SOT-23 (DBV) Package
  • 50-mA Low-Dropout Regulator
  • Available in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V Fixed-Output and Adjustable Versions
  • Only 17 uA Quiescent Current at 50 mA
  • 1 uA Quiescent Current in Standby Mode
  • Dropout Voltage Typically 35 mV at 50 mA
  • Over Current Limitation
  • \x9640°C to 125°C Operating Junction Temperature Range
  • 5-Pin SOT-23 (DBV) Package

The TPS770xx family of low-dropout (LDO) voltage regulators offers the benefits of low dropout voltage, ultralow-power operation, and miniaturized packaging. These regulators feature low dropout voltages and ultralow quiescent current compared to conventional LDO regulators. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS770xx series devices are ideal for micropower operations and where board space is at a premium.

A combination of new circuit design and process innovation has enabled the usual PNP pass transistor to be replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low \x97 typically 35 mV at 50 mA of load current (TPS77050) \x97 and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 uA maximum) and is stable over the entire range of output load current (0 mA to 50 mA). Intended for use in portable systems such as laptops and cellular phones, the ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life.

The TPS770xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 uA typical at TJ = 25°C. The TPS770xx is offered in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V fixed-voltage versions and in a variable version (programmable over the range of 1.2 V to 5.5 V).

The TPS770xx family of low-dropout (LDO) voltage regulators offers the benefits of low dropout voltage, ultralow-power operation, and miniaturized packaging. These regulators feature low dropout voltages and ultralow quiescent current compared to conventional LDO regulators. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS770xx series devices are ideal for micropower operations and where board space is at a premium.

A combination of new circuit design and process innovation has enabled the usual PNP pass transistor to be replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low \x97 typically 35 mV at 50 mA of load current (TPS77050) \x97 and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 uA maximum) and is stable over the entire range of output load current (0 mA to 50 mA). Intended for use in portable systems such as laptops and cellular phones, the ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life.

The TPS770xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 uA typical at TJ = 25°C. The TPS770xx is offered in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V, and 5-V fixed-voltage versions and in a variable version (programmable over the range of 1.2 V to 5.5 V).
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Documentación técnica

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Tipo Título Fecha
* Data sheet Ultra Low-Power 50-mA Low-Dropout Linear Regulators datasheet (Rev. D) 04 may 2001
Application note LDO Noise Demystified (Rev. B) PDF | HTML 18 ago 2020
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 09 ago 2017
User guide DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) 02 jun 2005

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

DEM-SOT23LDO — DEM-SOT23LDO compatible con la mayoría de reguladores LDO de salida positiva en encapsulados SOT23 (

Guía del usuario: PDF
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Placa de evaluación

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Modelo de simulación

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Modelo de simulación

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Modelo de simulación

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Design guide: PDF
Esquema: PDF
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