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TPS7B4255

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具有 5mV 跟蹤容差的 70mA 40V 電壓跟蹤低壓降 (LDO) 穩(wěn)壓器

產(chǎn)品詳情

Rating Catalog Vin (max) (V) 40 Vin (min) (V) 3 Iout (max) (A) 0.07 Output options Tracking Output Vout (max) (V) 30 Vout (min) (V) 2 Noise (μVrms) 150 PSRR at 100 KHz (dB) 70 Iq (typ) (mA) 0.031 Features Reverse Current Protection, Reverse voltage protection, Short-to-battery protection Thermal resistance θJA (°C/W) 127 Load capacitance (min) (μF) 1 Regulated outputs (#) 1 Dropout voltage (Vdo) (typ) (mV) 500 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 40 Vin (min) (V) 3 Iout (max) (A) 0.07 Output options Tracking Output Vout (max) (V) 30 Vout (min) (V) 2 Noise (μVrms) 150 PSRR at 100 KHz (dB) 70 Iq (typ) (mA) 0.031 Features Reverse Current Protection, Reverse voltage protection, Short-to-battery protection Thermal resistance θJA (°C/W) 127 Load capacitance (min) (μF) 1 Regulated outputs (#) 1 Dropout voltage (Vdo) (typ) (mV) 500 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm2 2.9 x 2.8
  • Wide input operating voltage range (3 V to 40 V):
    • Absolute maximum input range: –40 V to +45 V
  • Wide output voltage range: 2 V to 30 V
  • Very-tight, output-tracking tolerance: 5 mV (max)
  • Low dropout voltage: 500 mV (max) at 70 mA
  • Reverse polarity protection
  • Reverse current protection
  • Combined reference and enable input
  • Low quiescent current at light loads (100-μA load):
    • 50 μA (max)
  • Wide ESR range:
    • Stable with 1-μF to 200-μF ceramic output capacitor, 1-m? to 3-? ESR
  • Overtemperature protection
  • Output short-circuit protection to ground and supply
  • Junction temperature: –40°C to +150°C, TJ
  • Available in 5-pin SOT-23 DBV package
  • Buffers signals up to 1 kHz (see the Signal-Buffering LDO section)
  • Wide input operating voltage range (3 V to 40 V):
    • Absolute maximum input range: –40 V to +45 V
  • Wide output voltage range: 2 V to 30 V
  • Very-tight, output-tracking tolerance: 5 mV (max)
  • Low dropout voltage: 500 mV (max) at 70 mA
  • Reverse polarity protection
  • Reverse current protection
  • Combined reference and enable input
  • Low quiescent current at light loads (100-μA load):
    • 50 μA (max)
  • Wide ESR range:
    • Stable with 1-μF to 200-μF ceramic output capacitor, 1-m? to 3-? ESR
  • Overtemperature protection
  • Output short-circuit protection to ground and supply
  • Junction temperature: –40°C to +150°C, TJ
  • Available in 5-pin SOT-23 DBV package
  • Buffers signals up to 1 kHz (see the Signal-Buffering LDO section)

The TPS7B4255 is a low-dropout (LDO) voltage-tracking regulator, with high tracking accuracy and excellent load and line transient response. The device is available in a 5-pin, SOT-23 (DBV) package. The TPS7B4255 is designed to supply off-board sensors in industrial applications such as condition monitoring sensor systems. The device provides integrated protection features such as reverse polarity, output short to supply and ground, current limit, and thermal shutdown to protect against the high risk of cable failures in an off-board power system. The device is designed to survive a 45-V (absolute maximum) input voltage during extreme transient events.

A reference voltage applied at the ADJ/EN pin is effectively tracked with high accuracy for loads up to 70 mA. The high tracking accuracy provides accurate power supply to off-board modules and enables better accuracy when making measurements using ratiometric sensors.

By setting the ADJ/EN input pin low, the TPS7B4255 switches to standby mode and reduces the quiescent current to the minimum value.

The TPS7B4255 is a low-dropout (LDO) voltage-tracking regulator, with high tracking accuracy and excellent load and line transient response. The device is available in a 5-pin, SOT-23 (DBV) package. The TPS7B4255 is designed to supply off-board sensors in industrial applications such as condition monitoring sensor systems. The device provides integrated protection features such as reverse polarity, output short to supply and ground, current limit, and thermal shutdown to protect against the high risk of cable failures in an off-board power system. The device is designed to survive a 45-V (absolute maximum) input voltage during extreme transient events.

A reference voltage applied at the ADJ/EN pin is effectively tracked with high accuracy for loads up to 70 mA. The high tracking accuracy provides accurate power supply to off-board modules and enables better accuracy when making measurements using ratiometric sensors.

By setting the ADJ/EN input pin low, the TPS7B4255 switches to standby mode and reduces the quiescent current to the minimum value.
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* 數(shù)據(jù)表 TPS7B4255 70-mA, 40-V, Voltage-Tracking LDO With Voltage-Buffering Capability 數(shù)據(jù)表 PDF | HTML 2022年 12月 14日

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評估板

TPS7B4255EVM-062 — TPS7B4255 70mA、40V 電壓跟蹤低壓降 (LDO) 穩(wěn)壓器評估模塊

TPS7B4255EVM-062 評估模塊 (EVM) 用于評估 TPS7B4255-Q1 線性穩(wěn)壓器在電路應(yīng)用中使用時的運行情況和性能。

此特定 EVM 配置包含一個適用于汽車應(yīng)用的 70mA、高電壓、低壓降 (LDO) 電壓跟蹤穩(wěn)壓器，以及一個針對超低寄生測量進行優(yōu)化的板載負載瞬態(tài)電路。該穩(wěn)壓器能夠以 3mV 的跟蹤容差提供高達 70mA 的電流、并且具有高達 40V 的寬輸入電壓 (VIN) 范圍和高達 45V 的瞬態(tài)電壓。為了確保 TPS7B4255-Q1 的穩(wěn)定性，請使用等效串聯(lián)電阻 (ESR) 小于 3Ω 的 1μF（或更大）的輸出電容器。

用戶指南: PDF | HTML
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仿真模型

TPS7B4255-Q1 PSpice Transient Model (Rev. A)

SBVM991A.ZIP (18 KB) - PSpice Model
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SOT-23 (DBV) 5 Ultra Librarian

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包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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