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TPS790

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具有低噪声特性的 50mA、10V、低 IQ、低压降稳压器

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TLV767 正在供货 具有可调节输出和固定输出的 1A、16V 正电压低压降 (LDO) 线性稳压器 Alternative product with higher PSRR and better thermals in a 2x2 WSON and 3x3 MSOP-8 package

TPS790

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产品详情

Rating Catalog Vin (max) (V) 10 Vin (min) (V) 2.7 Iout (max) (A) 0.05 Output options Fixed Output Vout (max) (V) 3 Vout (min) (V) 1.5 Fixed output options (V) 1.5, 1.8, 2.5, 2.8, 3 Noise (µVrms) 56 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 0.017 Features Enable, Soft start Thermal resistance θJA (°C/W) 180 Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 57 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 10 Vin (min) (V) 2.7 Iout (max) (A) 0.05 Output options Fixed Output Vout (max) (V) 3 Vout (min) (V) 1.5 Fixed output options (V) 1.5, 1.8, 2.5, 2.8, 3 Noise (µVrms) 56 PSRR at 100 KHz (dB) 35 Iq (typ) (mA) 0.017 Features Enable, Soft start Thermal resistance θJA (°C/W) 180 Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 57 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • 50-mA Low-Dropout Regulator
  • Available in 1.5-V, 1.8-V, 2.5-V, 2.8-V, 3.0-V
  • Output Noise Typically 56 uVRMS (TPS79030)
  • Only 17 uA Quiescent Current at 50 mA
  • 1 uA Quiescent Current in Standby Mode
  • Dropout Voltage Typically 57 mV at 50 mA (TPS79030)
  • 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 1.5-V, 1.8-V, 2.5-V, 2.8-V, 3.0-V
  • Output Noise Typically 56 uVRMS (TPS79030)
  • Only 17 uA Quiescent Current at 50 mA
  • 1 uA Quiescent Current in Standby Mode
  • Dropout Voltage Typically 57 mV at 50 mA (TPS79030)
  • Over Current Limitation
  • \x9640°C to 125°C Operating Junction Temperature Range
  • 5-Pin SOT-23 (DBV) Package

The TPS790xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, ultralow-power operation, low-output noise, and miniaturized packaging. These regulators feature low-dropout voltages and ultralow quiescent current compared to conventional LDO regulators. An internal resistor, in conjunction with an external bypass capacitor, creates a low-pass filter to reduce the noise. The TPS79030 exhibits only 56 uVRMS of output voltage noise using 0.01 uF bypass and 10 uF output capacitors. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS790xx series devices are ideal for micropower operations, low output noise, and where board space is limited.

The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low, typically 57 mV at 50 mA of load current (TPS79030), and is directly proportional to the load current. The quiescent current is ultralow (17 uA typically) 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 TPS790xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 uA typical at TJ = 25°C. The TPS790xx is offered in 1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V.

The TPS790xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, ultralow-power operation, low-output noise, and miniaturized packaging. These regulators feature low-dropout voltages and ultralow quiescent current compared to conventional LDO regulators. An internal resistor, in conjunction with an external bypass capacitor, creates a low-pass filter to reduce the noise. The TPS79030 exhibits only 56 uVRMS of output voltage noise using 0.01 uF bypass and 10 uF output capacitors. Offered in a 5-terminal small outline integrated-circuit SOT-23 package, the TPS790xx series devices are ideal for micropower operations, low output noise, and where board space is limited.

The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low, typically 57 mV at 50 mA of load current (TPS79030), and is directly proportional to the load current. The quiescent current is ultralow (17 uA typically) 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 TPS790xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 uA typical at TJ = 25°C. The TPS790xx is offered in 1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V.
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* 数据表 Ultralow-Power, Low-Noise 50-mA Low Dropout Linear Regulators 数据表 (Rev. B) 2001-5-4

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