Datasheet > TLV117115DCYR

TLV117115DCYR

更新时间： 2024-09-14 00:53:39

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德州仪器 - TI		/
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描述
1-A, Positive Fixed-Voltage, Low-Dropout Regulator

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TLV117115DCYR 数据手册

TLV1171

www.ti.com

SBVS177 –APRIL 2012

1-A, Positive Fixed-Voltage, Low-Dropout Regulator

FEATURES

DESCRIPTION

The TLV1171 low-dropout (LDO) linear regulator is a

low input voltage version of the popular 1117 voltage

regulator.

•

Accuracy: 1.5% (typ)

Low I_Q: 100 μA (max)

–

500x Lower Than Standard 1117 Devices

V_IN: 2.0 V to 5.5 V

Absolute Maximum V_IN: 6.0 V

The TLV1171 is an extremely low-power device that

consumes 500x lower quiescent current than the

traditional 1117 voltage regulator, making the

TLV1171 suitable for applications that mandate very

low standby current. The TLV1171 LDO is also stable

with 0 mA of load current; there is no minimum load

requirement, making the device an ideal choice for

applications where the regulator is required to power

very small loads during standby in addition to large

currents on the order of 1 A during normal operation.

The TLV1171 offers excellent line and load transient

performance, resulting in very small magnitude output

voltage undershoots and overshoots when the load

current requirement changes from less than 1 mA to

more than 500 mA.

•

–

•

Stable with 0-mA Output Current

Low Dropout: 455 mV at 1 A for V_OUT= 3.3 V

High PSRR: 65 dB at 1 kHz

Minimum Ensured Current Limit: 1.1 A

Stable with Cost-Effective Ceramic Capacitors:

–

With 0-Ω ESR

•

Temperature Range: –40°C to +125°C

Thermal Shutdown and Overcurrent Protection

Available Package: SOT223

–

See the Package Option Addendum at the

end of this document for a complete list of

available voltage options.

A precision band gap and error amplifier provides

1.5% accuracy. A very high power-supply rejection

ratio enables the device to be used for post-

regulation after a switching regulator. Other valuable

features include low output noise and low-dropout

voltage.

APPLICATIONS

•

Set Top Boxes

The device is internally compensated to be stable

with 0-Ω equivalent series resistance (ESR)

capacitors. These key advantages enable the use of

cost-effective, small-size ceramic capacitors. Cost-

effective capacitors that have higher bias voltages

and temperature derating can also be used if desired.

TVs and Monitors

PC Peripherals, Notebooks, and Motherboards

Modems and Other Communication Products

Switching Power-Supply Post-Regulation

The TLV1171 is available in a SOT223 package. For

alternate pin outs of the device, refer to the

TLV1117LV.

TLV1171xxDCY

VOUT

GND

VIN

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...18

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TLV117115DCYR 替代型号

型号	品牌	替代类型	描述	数据表
TLV117115DCYT	TI	类似代替	1-A, Positive Fixed-Voltage, Low-Dropout Regulator

与TLV117115DCYR相关器件

型号	品牌	获取价格	描述	数据表
TLV117115DCYT	TI	获取价格	1-A, Positive Fixed-Voltage, Low-Dropout Regulator
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TLV117118DCYT	TI	获取价格	1-A, Positive Fixed-Voltage, Low-Dropout Regulator
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TLV1391_03	TI	获取价格	SINGLE DIFFERENTIAL COMPARATORS
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