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线性和低压降 (LDO) 稳压器

TPS778

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具有电源正常指示和使能功能的 750mA、10V、低压降稳压器

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数据表

TPS778

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产品详情

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.75 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 1.5 Fixed output options (V) 1.5, 1.8, 2.5, 3.3, 5.5 Rating Catalog Noise (µVrms) 54 PSRR at 100 KHz (dB) 29 Iq (typ) (mA) 0.08 Thermal resistance θJA (°C/W) 35, 57, 57.9 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 260 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.75 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 1.5 Fixed output options (V) 1.5, 1.8, 2.5, 3.3, 5.5 Rating Catalog Noise (µVrms) 54 PSRR at 100 KHz (dB) 29 Iq (typ) (mA) 0.08 Thermal resistance θJA (°C/W) 35, 57, 57.9 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 260 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4 SOIC (D) 8 29.4 mm² 4.9 x 6
  • Open Drain Power-On Reset With 200-ms Delay (TPS777xx)
  • Open Drain Power Good (TPS778xx)
  • 750-mA Low-Dropout Voltage Regulator
  • Avilable in 1.5-V, 1.8-V, 2.5-V, 3.3-V Fixed Output and Adjustable Versions
  • Dropout Voltage to 260 mV (Typ) at 750 mA (TPS77x33)
  • Ultralow 85 µA Typical Quiescent Current
  • Fast Transient Response
  • 2% Tolerance Over Specified Conditions for Fixed-Output Versions
  • 8-Pin SOIC and 20-Pin TSSOP PowerPAD™ (PWP) Package
  • Thermal Shutdown Protection

All trademarks are the property of their respective owners.
  • Open Drain Power-On Reset With 200-ms Delay (TPS777xx)
  • Open Drain Power Good (TPS778xx)
  • 750-mA Low-Dropout Voltage Regulator
  • Avilable in 1.5-V, 1.8-V, 2.5-V, 3.3-V Fixed Output and Adjustable Versions
  • Dropout Voltage to 260 mV (Typ) at 750 mA (TPS77x33)
  • Ultralow 85 µA Typical Quiescent Current
  • Fast Transient Response
  • 2% Tolerance Over Specified Conditions for Fixed-Output Versions
  • 8-Pin SOIC and 20-Pin TSSOP PowerPAD™ (PWP) Package
  • Thermal Shutdown Protection

All trademarks are the property of their respective owners.

TPS777xx and TPS778xx are designed to have a fast transient response and be stable with a 10-µF low ESR 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 260 mV at an output current of 750 mA for the TPS77x33) 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 85 µA over the full range of output current, 0 mA to 750 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. 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 1 µA at TJ = 25°C.

The RESET\ output of the TPS777xx initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS777xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage.

Power good (PG) of the TPS778xx is an active high output, which can be used to implement a power-on reset or a low-battery indicator.

The TPS777xx and TPS778xx 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 5.5 V for TPS77701 option and 1.2 V to 5.5 V for TPS77801 option). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS777xx and TPS778xx families are available in 8 pin SOIC and 20 pin PWP packages.

TPS777xx and TPS778xx are designed to have a fast transient response and be stable with a 10-µF low ESR 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 260 mV at an output current of 750 mA for the TPS77x33) 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 85 µA over the full range of output current, 0 mA to 750 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. 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 1 µA at TJ = 25°C.

The RESET\ output of the TPS777xx initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS777xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage.

Power good (PG) of the TPS778xx is an active high output, which can be used to implement a power-on reset or a low-battery indicator.

The TPS777xx and TPS778xx 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 5.5 V for TPS77701 option and 1.2 V to 5.5 V for TPS77801 option). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS777xx and TPS778xx families are available in 8 pin SOIC and 20 pin PWP packages.
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类型 标题 下载最新的英语版本 日期
* 数据表 TPS777/8xx: Fast-Transient-Response 750-mA LDO Voltage Regulators 数据表 (Rev. G) 2004年 1月 5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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FSI 是 C2000 实时控制微控制器 (MCU) 上提供的一种低信号计数串行通信外设，可提供可靠的低成本通信，而且其吞吐量（高达 200Mbps）高于其他串行外设。FSI 能够以低延迟在器件之间传递时间关键型数据，因此可在控制系统中实现新的分散处理、感应和驱动等拓扑和方法。FSI 旨在与隔离器件配合使用，可在系统的“热”（高电压）侧与“冷”（低电压）侧之间提供高速通信。

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最新英语版本 (Rev.T): PDF | HTML
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HTSSOP (PWP) 20 Ultra Librarian
SOIC (D) 8 Ultra Librarian
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  • MSL 等级/回流焊峰值温度
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