全部型号

TPS7B4255QDYBRQ1

制造商型号：
TPS7B4255QDYBRQ1
制造商：
Texas Instruments
产品类型：
Voltage-Tracking LDO
系列：
TPS7B4255-Q1
封装：
SOT-23-5
描述：
Voltage-Tracking LDO

产品属性

属性数值
Input Voltage3 to 40V; output regulation requires adequate headroom
Output VoltageTracksADJ/EN reference; 2 to 40V output range subject toVIN headroom
Output Current70 mA maximum, subject tothermal limits
Dropout Voltage500 mV maximum at 70 mA, VADJ>=5V, VIN=VADJ
Output Noise150uVrms typical at VOUT=3.3V, IOUT=1 mA, BW10Hz to 100 kHz, using 5uVrms reference
Quiescent Current35 uA typical/40 uA maximum at 25°C, IOUT=100 uA, VIN5.6 to 40V; 50 uA maximum over temperature
ProtectionReverse current, reverse polarity, output short-to-ground/supply and thermal shutdown
Operating Temperature-40 to +125°C ambient; -40 to +150°C junction
Tracking Accuracy+/-5 mV maximum with VIN>=VOUT+600 mV andIOUT=100 uA to 70 mA
Output Capacitor1 to 200 uF nominal; 0.001 to 3 ohm ESR; minimum 500nF effective required forstability
Package DetailsThermally enhanced SOT-23,DYB,5 pins;2.926 x1.5 mm nominal body;0.95 mm pitch;1.1 mm maximum height

产品描述

TPS7B4255QDYBRQ1 is a 70 mA voltage-tracking regulator operating from a 3 to 40 V input and following an external ADJ/EN reference. By reproducing the reference on an off-board sensor supply, tight tracking helps keep a ratiometric sensor supply aligned with the measurement reference.

The DYB package has an enhanced thermal path and must be distinguished from the standard DBV option. Cable-fault protection supports remote sensors, while the usable 70 mA output still depends on input-to-output drop and board cooling.

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