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线性和低压降 (LDO) 稳压器

SN105125

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具有电源正常指示功能的 150mA 可调节低压降稳压器

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SN105125

正在供货
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产品详情

Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 5.2 Vin (min) (V) 3 Vout (max) (V) 1.2 Vout (min) (V) 1.2 Fixed output options (V) 1.2 Iq (typ) (mA) 0.15 Thermal resistance θJA (°C/W) 235 Rating Catalog Regulated outputs (#) 1 Features Power good Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 1000 Operating temperature range (°C) 0 to 70
Output options Fixed Output Iout (max) (A) 0.15 Vin (max) (V) 5.2 Vin (min) (V) 3 Vout (max) (V) 1.2 Vout (min) (V) 1.2 Fixed output options (V) 1.2 Iq (typ) (mA) 0.15 Thermal resistance θJA (°C/W) 235 Rating Catalog Regulated outputs (#) 1 Features Power good Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 1000 Operating temperature range (°C) 0 to 70
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Low Dropout Voltage Regulator, 1.2-V
  • 150-mA Load Current Capability
  • Power Okay (POK) Function
  • Load Independent, Low Ground Current,150-uA
  • Current Limiting
  • Thermal Shutdown
  • Low Sleep State Current (Off Mode)
  • Fast Transient Response
  • Low Variation Due to Load and Line Regulation
  • Output Stable With Low ESR Capacitors
  • TTL Logic Controlled Enable Input
  • applications
    • Processor Powerup Sequencing
    • Palmtop Computers, Laptops, and Notebooks
  • Low Dropout Voltage Regulator, 1.2-V
  • 150-mA Load Current Capability
  • Power Okay (POK) Function
  • Load Independent, Low Ground Current,150-uA
  • Current Limiting
  • Thermal Shutdown
  • Low Sleep State Current (Off Mode)
  • Fast Transient Response
  • Low Variation Due to Load and Line Regulation
  • Output Stable With Low ESR Capacitors
  • TTL Logic Controlled Enable Input
  • applications
    • Processor Powerup Sequencing
    • Palmtop Computers, Laptops, and Notebooks

The SN105125 is a low dropout voltage regulator with an output tolerance of ±2% over the operating range. The device is optimized for low noise applications and has a low quiescent current (enable <0.8 V). The device has a low dropout voltage at full load (150 mA). The power okay function monitors the output voltage and indicates when an error occurs in the system (active low). In the event of an output fault such as overcurrent, thermal shutdown, or dropout, the power okay output is pulled low (open drain).

The SN105125 has a fast transient response recovery capability in the event of load transition from heavy load to light load. The device also minimizes overshoot during this condition. During power down, the output capacitor and load are de-energized through the internal active shutdown clamp, which is turned on when the device is disabled.

The SN105125 requires a small output capacitor for stability with low ESR. An input capacitor is not required unless the bulk ac capacitor is placed away from the device or the power supply is a battery. In this situation, a 1-uF capacitor is recommended for the application. Low ESR ceramic capacitors may be used with the device to reduce board space in power applications, a key concern in hand-held wireless devices.

The SN105125 is a low dropout voltage regulator with an output tolerance of ±2% over the operating range. The device is optimized for low noise applications and has a low quiescent current (enable <0.8 V). The device has a low dropout voltage at full load (150 mA). The power okay function monitors the output voltage and indicates when an error occurs in the system (active low). In the event of an output fault such as overcurrent, thermal shutdown, or dropout, the power okay output is pulled low (open drain).

The SN105125 has a fast transient response recovery capability in the event of load transition from heavy load to light load. The device also minimizes overshoot during this condition. During power down, the output capacitor and load are de-energized through the internal active shutdown clamp, which is turned on when the device is disabled.

The SN105125 requires a small output capacitor for stability with low ESR. An input capacitor is not required unless the bulk ac capacitor is placed away from the device or the power supply is a battery. In this situation, a 1-uF capacitor is recommended for the application. Low ESR ceramic capacitors may be used with the device to reduce board space in power applications, a key concern in hand-held wireless devices.
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类型 标题 下载最新的英语版本 日期
* 数据表 150-mA Low Dropout Regulator with POK 数据表 2002年 2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 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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SOT-23 (DBV) 5 查看选项
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  • 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
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