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線性與低壓差 (LDO) 穩壓器

TPS755

現行

具電源良好與啟用功能的 5-A、超低壓降電壓穩壓器

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產品規格表

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功能相同，但引腳輸出與所比較的產品不同
TPS7A54 現行 4-A、低 VIN (1.1-V)、低雜訊、高準確度、超低壓差 (LDO) 電壓穩壓器 Cost-optimized product with lower current, lower noise performance and can be paralleled in order to achieve 5 A
TPS7A57 現行 5-A、低輸入電壓、低雜訊、高準確度、低壓差 (LDO) 電壓穩壓器 Alternative product offering much lower noise performance in smaller enhanced QFN package

TPS755

現行
產品規格表 立即訂購

產品詳細資料

Output options Adjustable Output, Fixed Output Iout (max) (A) 5 Vin (max) (V) 5.5 Vin (min) (V) 2.8 Vout (max) (V) 5 Vout (min) (V) 1.22 Fixed output options (V) 1.5, 1.8, 2.5, 3.3 Noise (µVrms) 35 Iq (typ) (mA) 0.12 Thermal resistance θJA (°C/W) 39 Rating Catalog Load capacitance (min) (µF) 47 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 12 Dropout voltage (Vdo) (typ) (mV) 250 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 5 Vin (max) (V) 5.5 Vin (min) (V) 2.8 Vout (max) (V) 5 Vout (min) (V) 1.22 Fixed output options (V) 1.5, 1.8, 2.5, 3.3 Noise (µVrms) 35 Iq (typ) (mA) 0.12 Thermal resistance θJA (°C/W) 39 Rating Catalog Load capacitance (min) (µF) 47 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 12 Dropout voltage (Vdo) (typ) (mV) 250 Operating temperature range (°C) -40 to 125
TO-220 (KC) 5 45.212 mm² 10.16 x 4.45 TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • 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 (Fixed Options Only)
  • Dropout Voltage Typically 250 mV at 5 A (TPS75533)
  • Low 125 uA Typical Quiescent Current
  • Fast Transient Response
  • 3% Tolerance Over Specified Conditions for Fixed-Output Versions
  • Available in 5-Pin TO\x96220 and TO\x96263 Surface-Mount Packages
  • Thermal Shutdown Protection
  • 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 (Fixed Options Only)
  • Dropout Voltage Typically 250 mV at 5 A (TPS75533)
  • Low 125 uA Typical Quiescent Current
  • Fast Transient Response
  • 3% Tolerance Over Specified Conditions for Fixed-Output Versions
  • Available in 5-Pin TO\x96220 and TO\x96263 Surface-Mount Packages
  • Thermal Shutdown Protection

The TPS755xx family of 5-A low dropout (LDO) regulators contains four fixed voltage option regulators with integrated power-good (PG\) and an adjustable voltage option regulator. These devices are capable of supplying 5 A of output current with a dropout of 250 mV (TPS75533). Therefore, the device is capable of performing a 3.3-V to 2.5-V conversion. Quiescent current is 125 uA at full load and drops down to less than 1 uA when the device is disabled. The TPS755xx is designed to have fast transient response for large load current changes.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 250 mV at an output current of 5 A for the TPS75533) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 125 uA over the full range of output current). 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 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 uA at TJ = 25°C. The power-good terminal (PG\) is an active low, open drain output, which can be used to implement a power-on reset or a low-battery indicator.

The TPS755xx is 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 1.22 V to 5 V). Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS755xx family is available in a 5-pin TO\x96220 (KC) and TO\x96263 (KTT) packages.

The TPS755xx family of 5-A low dropout (LDO) regulators contains four fixed voltage option regulators with integrated power-good (PG\) and an adjustable voltage option regulator. These devices are capable of supplying 5 A of output current with a dropout of 250 mV (TPS75533). Therefore, the device is capable of performing a 3.3-V to 2.5-V conversion. Quiescent current is 125 uA at full load and drops down to less than 1 uA when the device is disabled. The TPS755xx is designed to have fast transient response for large load current changes.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 250 mV at an output current of 5 A for the TPS75533) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 125 uA over the full range of output current). 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 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 uA at TJ = 25°C. The power-good terminal (PG\) is an active low, open drain output, which can be used to implement a power-on reset or a low-battery indicator.

The TPS755xx is 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 1.22 V to 5 V). Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS755xx family is available in a 5-pin TO\x96220 (KC) and TO\x96263 (KTT) packages.
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類型 標題 日期
* Data sheet Fast-Transient Response 5-A Low Dropout Voltage Regulators datasheet (Rev. D) 2002年 5月 28日
Application note LDO Noise Demystified (Rev. B) PDF | HTML 2020年 8月 18日
Application note LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017年 8月 9日
EVM User's guide TPS75525EVM Voltage Regulator Evaluation Module 2001年 11月 28日

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TPS75525EVM — TPS75525EVM 電壓穩壓器評估模組

Each EVM contains an SLVP190 test board with one TPS75525KTT 5-A, 2.5-V linear regulator and one TPS75733KTT 3-A, 3.3-V linear regulator, as well as supporting passive components. Although other configurations are possible through jumper selection, this EVM is configured to perform power-up (...)

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