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LT1117IST-3.3-PBF

更新时间： 2024-11-24 11:53:43

品牌	Logo	应用领域
凌特 - Linear		稳压器
页数	文件大小	规格书
16页	184K
描述
800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V

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LT1117/LT1117-2.85

LT1117-3.3/LT1117-5

800mA Low Dropout

Positive Regulators Adjustable

and Fixed 2.85V, 3.3V, 5V

FEATURES

DESCRIPTION

The LT^®1117 is a positive low dropout regulator designed

to provide up to 800mA of output current. The device is

availableinanadjustableversionandfixedoutputvoltages

of 2.85V, 3.3V and 5V. The 2.85V version is designed

Space Saving SOT-223 Surface Mount Package

3-Terminal Adjustable or Fixed 2.85V, 3.3V, 5V

Output Current of 800mA

Operates Down to 1V Dropout

Guaranteed Dropout Voltage at Multiple Current Levels

0.2% Line Regulation Max

0.4% Load Regulation Max

specifically to be used in Active Terminators for the SCSI

bus.Allinternalcircuitryisdesignedtooperatedownto1V

input to output differential. Dropout voltage is guaranteed

at a maximum of 1.2V at 800mA, decreasing at lower load

currents. On chip trimming adjusts the reference/output

voltage to within 1%. Current limit is also trimmed in

order to minimize the stress on both the regulator and the

power source circuitry under overload conditions.

APPLICATIONS

Active SCSI Terminators

High Efﬁciency Linear Regulators

Post Regulators for Switching Supplies

Battery Chargers

5V to 3.3V Linear Regulators

ThelowproﬁlesurfacemountSOT-223packageallowsthe

devicetobeusedinapplicationswherespaceislimited.The

LT1117requiresaminimumof10μFofoutputcapacitance

for stability. Output capacitors of this size or larger are

normally included in most regulator designs.

L, LT, LTC, LTM, Linear Technology, OPTI-LOOP and the Linear logo are registered trademarks

of Linear Technology Corporation. UltraFast is a trademark of Linear Technology Corporation. All

other trademarks are the property of their respective owners.

Unlike PNP type regulators where up to 10% of the output

currentiswastedasquiescentcurrent,thequiescentcurrent

of the LT1117 ﬂows into the load, increasing efﬁciency.

TYPICAL APPLICATION

Active Terminator for SCSI-2 Bus

Dropout Voltage (V_IN– V_OUT)

1.4

1.2

1.0

–40°C ≤ T < 0°C

110Ω

0°C ≤ T ≤ 125°C

LT1117-2.85

110Ω

18 TO 27

LINES

= 25°C

OUT

0.8

0.6

0.4

0.2

GND

= 125°C

4.75V TO

5.25V

110Ω

10μF

22μF

1117 TA01

INDICATES GUARANTEED TEST POINT

100 200 300 400 500 600 700 800

OUTPUT CURRENT (mA)

1117 TA02

1117fd

12 3 4 5 6 7...16

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与LT1117IST-3.3-PBF相关器件

型号	品牌	获取价格	描述	数据表
LT1117IST-3.3TR	Linear	获取价格	800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V
LT1117IST-3.3-TR	Linear	获取价格	800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V
LT1117IST-3.3TRPBF	Linear	获取价格	800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V
LT1117IST-3.3-TRPBF	Linear	获取价格	800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V
LT1117IST-5	Linear	获取价格	800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V
LT1117IST-5#TR	Linear	获取价格	LT1117 - 800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V,3.3V, 5V; Packag
LT1117IST-5PBF	Linear	获取价格	800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V
LT1117IST-5-PBF	Linear	获取价格	800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V
LT1117IST-5TR	Linear	获取价格	800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V
LT1117IST-5-TR	Linear	获取价格	800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V

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