Datasheet > TPS7B4255

TPS7B4255

更新时间： 2024-11-24 11:15:47

品牌	Logo	应用领域
德州仪器 - TI		稳压器
页数	文件大小	规格书
26页	1598K
描述
具有 5mV 跟踪容差的 70mA 40V 电压跟踪低压降 (LDO) 稳压器

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TPS7B4255 数据手册

TPS7B4255

SBVS441 – DECEMBER 2022

TPS7B4255 70-mA, 40-V, Voltage-Tracking LDO With Voltage-Buffering Capability

1 Features

3 Description

•

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

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.

•

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-mΩ to 3-Ω ESR

•

Overtemperature protection

Output short-circuit protection to ground and

supply

Junction temperature: –40°C to +150°C, T_J

Available in 5-pin SOT-23 DBV package

Buffers signals up to 1 kHz (see the Signal-

Buffering LDO section)

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.

2 Applications

•

Condition monitoring sensors

Motion detectors (PIR, uWave, and so forth)

Wired controls

Telemetry and RTUs

Robot sensing modules

Package Information⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS7B4255

DBV (SOT-23, 5)

2.90 mm × 1.60 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

DC Supply

OUT

DC/DC converter

or LDO

TPS7B4255

ADJ/EN

OUT

Sensor

MCU

ADC

Control Unit Board

Typical Application

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...26

中文翻译

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与TPS7B4255相关器件

型号	品牌	获取价格	描述	数据表
TPS7B4255DBVR	TI	获取价格	具有 5mV 跟踪容差的 70mA 40V 电压跟踪低压降 (LDO) 稳压器 \| DBV
TPS7B4255-Q1	TI	获取价格	具有 5mV 跟踪容差的汽车级、70mA、40V 电压跟踪低压降 (LDO) 稳压器
TPS7B4256-Q1	TI	获取价格	具有 FB 和 6mV 跟踪容差的汽车类、70mA、40V 电压跟踪低压降稳压器
TPS7B4256QDRQ1	TI	获取价格	具有 FB 和 6mV 跟踪容差的汽车类、70mA、40V 电压跟踪低压降稳压器 \| D
TPS7B6333QPWPRQ1	TI	获取价格	汽车类 300mA、电池供电运行 (40V)、高 PSRR、低 IQ、低压降稳压器 \| P
TPS7B6350QPWPRQ1	TI	获取价格	汽车类 300mA、电池供电运行 (40V)、高 PSRR、低 IQ、低压降稳压器 \| P
TPS7B63-Q1	TI	获取价格	汽车类 300mA、电池供电运行 (40V)、高 PSRR、低 IQ、低压降稳压器
TPS7B6701QKTTRQ1	TI	获取价格	1.5V-18V ADJUSTABLE POSITIVE LDO REGULATOR, 0.45V DROPOUT, PSSO5, DDPAK-5
TPS7B6701QPWPRQ1	TI	获取价格	具有电源正常指示功能的汽车类 450mA、电池供电运行 (40V)、高 PSRR、低 IQ
TPS7B6733QPWPRQ1	TI	获取价格	具有电源正常指示功能的汽车类 450mA、电池供电运行 (40V)、高 PSRR、低 IQ

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