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TPS768-Q1

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具有电源正常指示和使能功能的汽车类 1A、10V、低压降稳压器

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TPS768-Q1

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Output options Adjustable Output, Fixed Output Iout (max) (A) 1 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Fixed output options (V) 1.8, 2.5, 3.3, 5 Noise (µVrms) 55 Iq (typ) (mA) 0.085 Thermal resistance θJA (°C/W) 40 Rating Automotive Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 30 Dropout voltage (Vdo) (typ) (mV) 230 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 1 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 1.2 Fixed output options (V) 1.8, 2.5, 3.3, 5 Noise (µVrms) 55 Iq (typ) (mA) 0.085 Thermal resistance θJA (°C/W) 40 Rating Automotive Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 30 Dropout voltage (Vdo) (typ) (mV) 230 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • 1-A Low-Dropout (LDO) Voltage Regulator
  • Available in 1.8-V, 2.5-V, 3.3-V, and 5-V Fixed-Output and an Adjustable Version
  • Dropout Voltage Down to 230 mV at 1 A (TPS76850-Q1)
  • Ultralow 85-µA Typical Quiescent Current
  • Fast Transient Response
  • 2% Tolerance Over Specified Conditions for Fixed-Output Versions
  • Open-Drain Power Good (See TPS767xx-Q1 for Power-On Reset With 200-ms Delay Option)
  • 20-Pin TSSOP (PWP) Package
  • Thermal Shutdown Protection
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • 1-A Low-Dropout (LDO) Voltage Regulator
  • Available in 1.8-V, 2.5-V, 3.3-V, and 5-V Fixed-Output and an Adjustable Version
  • Dropout Voltage Down to 230 mV at 1 A (TPS76850-Q1)
  • Ultralow 85-µA Typical Quiescent Current
  • Fast Transient Response
  • 2% Tolerance Over Specified Conditions for Fixed-Output Versions
  • Open-Drain Power Good (See TPS767xx-Q1 for Power-On Reset With 200-ms Delay Option)
  • 20-Pin TSSOP (PWP) Package
  • Thermal Shutdown Protection

This device is designed to have a fast transient response and be stable with 10 µF capacitors. This combination provides high performance at a reasonable cost.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV at an output current of 1 A for the TPS76850-Q1) 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 85 µA over the full range of output current, 0 mA to 1 A). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a shutdown mode; applying a TTL high signal to the enable (EN) input shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C.

Power good (PG) is an active-high output, which can be used to implement a power-on reset or a low-battery indicator.

The TPS768xx-Q1 is offered in 1.8-V, 2.5-V, 3.3-V, and 5-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.2 V to 5.5 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS768xx-Q1 family is available in a 20-pin PWP package.

This device is designed to have a fast transient response and be stable with 10 µF capacitors. This combination provides high performance at a reasonable cost.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV at an output current of 1 A for the TPS76850-Q1) 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 85 µA over the full range of output current, 0 mA to 1 A). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a shutdown mode; applying a TTL high signal to the enable (EN) input shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C.

Power good (PG) is an active-high output, which can be used to implement a power-on reset or a low-battery indicator.

The TPS768xx-Q1 is offered in 1.8-V, 2.5-V, 3.3-V, and 5-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.2 V to 5.5 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS768xx-Q1 family is available in a 20-pin PWP package.
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类型 标题 下载最新的英语版本 日期
* 数据表 TPS768xx-Q1 Fast-Transient-Response 1-A Low-Dropout Voltage Regulators 数据表 (Rev. B) PDF | HTML 2016年 11月 1日
应用手册 LDO 噪声揭秘 (Rev. B) PDF | HTML 英语版 (Rev.B) PDF | HTML 2020年 9月 16日
应用手册 PowerPAD™ Thermally Enhanced Package (Rev. H) 2018年 7月 6日
应用手册 LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017年 8月 9日
应用手册 简化的 LDO PSRR 测量 最新英语版本 (Rev.A) PDF | HTML 2010年 7月 28日

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