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线性和低压降 (LDO) 稳压器

TPS71H01

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具有电源正常指示和使能功能的 500mA、10V、可调节低压降稳压器

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TPS71H01

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产品详情

Output options Adjustable Output Iout (max) (A) 0.5 Vin (max) (V) 10 Vin (min) (V) 2.5 Vout (max) (V) 9.75 Vout (min) (V) 1.2 Noise (µVrms) 74 Iq (typ) (mA) 0.28 Thermal resistance θJA (°C/W) 179 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 59 Dropout voltage (Vdo) (typ) (mV) 235 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 0.5 Vin (max) (V) 10 Vin (min) (V) 2.5 Vout (max) (V) 9.75 Vout (min) (V) 1.2 Noise (µVrms) 74 Iq (typ) (mA) 0.28 Thermal resistance θJA (°C/W) 179 Rating Catalog Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 3 PSRR at 100 KHz (dB) 59 Dropout voltage (Vdo) (typ) (mV) 235 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Available in 5-V, 4.85-V, and 3.3-V Fixed-Output and Adjustable Versions
  • Very Low-Dropout Voltage ...Maximum of 32 mV at IO = 100 mA (TPS71H50)
  • Very Low Quiescent Current – Independent of Load . . . 285 uA Typ
  • Extremely Low Sleep-State Current
       0.5 uA Max
  • 2% Tolerance Over Specified Conditions For Fixed-Output Versions
  • Output Current Range of 0 mA to 500 mA
  • TSSOP Package Option Offers Reduced Component Height for Space-Critical Applications
  • Thermally Enhanced Surface-Mount Package
  • Power-Good (PG) Status Output
  • Available in 5-V, 4.85-V, and 3.3-V Fixed-Output and Adjustable Versions
  • Very Low-Dropout Voltage ...Maximum of 32 mV at IO = 100 mA (TPS71H50)
  • Very Low Quiescent Current – Independent of Load . . . 285 uA Typ
  • Extremely Low Sleep-State Current
       0.5 uA Max
  • 2% Tolerance Over Specified Conditions For Fixed-Output Versions
  • Output Current Range of 0 mA to 500 mA
  • TSSOP Package Option Offers Reduced Component Height for Space-Critical Applications
  • Thermally Enhanced Surface-Mount Package
  • Power-Good (PG) Status Output

The TPS71Hxx integrated circuits are a family of micropower low-dropout (LDO) voltage regulators. An order of magnitude reduction in dropout voltage and quiescent current over conventional LDO performance is achieved by replacing the typical pnp pass transistor with a PMOS device.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 32 mV at an output current of 100 mA for the TPS71H50) and is directly proportional to the output current (see Figure 1). Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and remains independent of output loading (typically 285 uA over the full range of output current, 0 mA to 500 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. The LDO family also features a sleep mode; applying a TTL high signal to EN\ (enable)\ shuts down the regulator, reducing the quiescent current to 0.5 uA maximum at TJ = 25°C.

Power good (PG) reports low output voltage and can be used to implement a power-on reset or a low-battery indicator.

The TPS71Hxx is offered in 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges (3% for adjustable version). The TPS71Hxx family is available in a TSSOP (20-pin) thermally enhanced surface-mount power package. The package has an innovative thermal pad that, when soldered to the printed-wiring board (PWB), enables the device to dissipate several watts of power (see Thermal Information section). Maximum height of the package is 1.2 mm.

The TPS71Hxx integrated circuits are a family of micropower low-dropout (LDO) voltage regulators. An order of magnitude reduction in dropout voltage and quiescent current over conventional LDO performance is achieved by replacing the typical pnp pass transistor with a PMOS device.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (maximum of 32 mV at an output current of 100 mA for the TPS71H50) and is directly proportional to the output current (see Figure 1). Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and remains independent of output loading (typically 285 uA over the full range of output current, 0 mA to 500 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. The LDO family also features a sleep mode; applying a TTL high signal to EN\ (enable)\ shuts down the regulator, reducing the quiescent current to 0.5 uA maximum at TJ = 25°C.

Power good (PG) reports low output voltage and can be used to implement a power-on reset or a low-battery indicator.

The TPS71Hxx is offered in 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges (3% for adjustable version). The TPS71Hxx family is available in a TSSOP (20-pin) thermally enhanced surface-mount power package. The package has an innovative thermal pad that, when soldered to the printed-wiring board (PWB), enables the device to dissipate several watts of power (see Thermal Information section). Maximum height of the package is 1.2 mm.
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类型 标题 下载最新的英语版本 日期
* 数据表 Low-Dropout Voltage Regulators 数据表 (Rev. B) 2002年 7月 30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 Fundamental Theory of PMOS LDO Voltage Regulators (Rev. A) 2018年 8月 17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
应用手册 Technical Review of Low Dropout Voltage Regulator Operation And Performance 1999年 8月 30日

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包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
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