TPS753

現行

具有低 IQ 和延遲重設功能的 1.5-A、超低壓差電壓穩壓器

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同,但引腳輸出與所比較的裝置不同
TPS7A52 現行 2-A、低 VIN (1.1-V)、低雜訊、高準確度、超低壓差 (LDO) 電壓穩壓器 Lower noise performance in smaller enhanced QFN package

產品詳細資料

Output options Adjustable Output, Fixed Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 5 Vout (min) (V) 1.5 Fixed output options (V) 1.5, 1.8, 2.5, 3.3 Rating Catalog Noise (µVrms) 60 PSRR at 100 KHz (dB) 17 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 43 Load capacitance (min) (µF) 47 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 160 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 2.7 Vout (max) (V) 5 Vout (min) (V) 1.5 Fixed output options (V) 1.5, 1.8, 2.5, 3.3 Rating Catalog Noise (µVrms) 60 PSRR at 100 KHz (dB) 17 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 43 Load capacitance (min) (µF) 47 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 160 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • 1.5-A Low-Dropout Voltage Regulator
  • Available in 1.5 V, 1.8 V, 2.5 V, and 3.3 V Fixed Output and Adjustable Versions
  • Open Drain Power-Good (PG) Status Output (TPS751xxQ)
  • Open Drain Power-On Reset With 100ms Delay (TPS753xxQ)
  • Dropout Voltage Typically 160 mV at 1.5 A (TPS75133Q)
  • Ultralow 75-µA Typical Quiescent Current
  • Fast Transient Response
  • 2% Tolerance Over Specified Conditions for Fixed-Output Versions
  • 20-Pin TSSOP PowerPAD™ (PWP) Package
  • Thermal Shutdown Protection
  • APPLICATIONS
    • Telecom
    • Servers
    • DSP, FPGA Supplies

PowerPAD is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

  • 1.5-A Low-Dropout Voltage Regulator
  • Available in 1.5 V, 1.8 V, 2.5 V, and 3.3 V Fixed Output and Adjustable Versions
  • Open Drain Power-Good (PG) Status Output (TPS751xxQ)
  • Open Drain Power-On Reset With 100ms Delay (TPS753xxQ)
  • Dropout Voltage Typically 160 mV at 1.5 A (TPS75133Q)
  • Ultralow 75-µA Typical Quiescent Current
  • Fast Transient Response
  • 2% Tolerance Over Specified Conditions for Fixed-Output Versions
  • 20-Pin TSSOP PowerPAD™ (PWP) Package
  • Thermal Shutdown Protection
  • APPLICATIONS
    • Telecom
    • Servers
    • DSP, FPGA Supplies

PowerPAD is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

The TPS753xxQ and TPS751xxQ devices are low-dropout regulators with integrated power-on reset and power-good (PG) functions respectively. These devices are capable of supplying 1.5 A of output current with a dropout of 160 mV (TPS75133Q, TPS75333Q). Quiescent current is 75 µA at full load and drops down to 1 µA when the device is disabled. These devices are designed to have fast transient response for larger load current changes.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 160 mV at an output current of 1.5 A for the TPS75x33Q) and is directly proportional to the output current. Additionally, because the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 75 µA over the full range of output current, 1 mA to 1.5 A). These two key specifications yield a significant improvement in operating life for battery-powered systems.

The device is enabled when EN is connected to a low-level input voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = +25°C.

For the TPS751xxQ, the power-good terminal (PG) is an active high, open drain output for use with a power-on reset or a low-battery indicator.

The RESET (SVS, POR, or power on reset) output of the TPS753xxQ initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS753xxQ monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage. When the output reaches 95% of its regulated voltage, RESET goes to a high-impedance state after a 100-ms delay. RESET goes to a logic-low state when the regulated output voltage is pulled below 95% (that is, during an overload condition) of its regulated voltage.

The TPS751xxQ and TPS753xxQ are offered in 1.5 V, 1.8 V, 2.5 V and 3.3 V fixed-voltage versions and in an adjustable version (programmable over the range of 1.5 V to 5 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS751xxQ and TPS753xxQ families are available in a 20-pin TSSOP (PWP) package.

The TPS753xxQ and TPS751xxQ devices are low-dropout regulators with integrated power-on reset and power-good (PG) functions respectively. These devices are capable of supplying 1.5 A of output current with a dropout of 160 mV (TPS75133Q, TPS75333Q). Quiescent current is 75 µA at full load and drops down to 1 µA when the device is disabled. These devices are designed to have fast transient response for larger load current changes.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 160 mV at an output current of 1.5 A for the TPS75x33Q) and is directly proportional to the output current. Additionally, because the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 75 µA over the full range of output current, 1 mA to 1.5 A). These two key specifications yield a significant improvement in operating life for battery-powered systems.

The device is enabled when EN is connected to a low-level input voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = +25°C.

For the TPS751xxQ, the power-good terminal (PG) is an active high, open drain output for use with a power-on reset or a low-battery indicator.

The RESET (SVS, POR, or power on reset) output of the TPS753xxQ initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS753xxQ monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage. When the output reaches 95% of its regulated voltage, RESET goes to a high-impedance state after a 100-ms delay. RESET goes to a logic-low state when the regulated output voltage is pulled below 95% (that is, during an overload condition) of its regulated voltage.

The TPS751xxQ and TPS753xxQ are offered in 1.5 V, 1.8 V, 2.5 V and 3.3 V fixed-voltage versions and in an adjustable version (programmable over the range of 1.5 V to 5 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS751xxQ and TPS753xxQ families are available in a 20-pin TSSOP (PWP) package.

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* Data sheet Fast-Transient-Response 1.5-A Low-Dropout Voltage Regulators datasheet (Rev. C) 2007年 10月 19日

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