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PTN78000W

更新时间： 2024-09-24 22:26:11

品牌	Logo	应用领域
德州仪器 - TI		稳压器开关输入元件
页数	文件大小	规格书
20页	440K
描述
1.5-A, WIDE-INPUT ADJUSTABLE SWITCHING REGULATOR

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PTN78000W 数据手册

PTN78000W

www.ti.com

SLTS230–NOVEMBER 2004

1.5-A, WIDE-INPUT ADJUSTABLE SWITCHING REGULATOR

FEATURES

APPLICATIONS

•

General-Purpose, Industrial Controls,

HVAC Systems, Test and Measurement,

Medical Instrumentation, AC/DC Adaptors,

Vehicles, Marine and Avionics

•

1.5-A Output Current

•

Wide-Input Voltage

(7 V to 36 V)

•

Wide-Output Voltage Adjust

(2.5 V to 12.6 V)

•

High Efficiency (Up to 95%)

On/Off Inhibit

Output Current Limit

Overtemperature Shutdown

Operating Temp: –40°C to 85°C

Surface Mount Package

DESCRIPTION

The PTN78000W is a series of high-efficiency, step-down Integrated Switching Regulator (ISR), that represent

the third generation in the evolution of the popular 78ST100 series of products. In new designs it may be

considered in place of the 78ST100, PT78ST100, PT5100, and PT6100 series of single in-line pin (SIP)

products. The PTN78000 is smaller and lighter than its predecessors, and has either similar or improved

electrical performance characteristics. The case-less, double-sided package, also exhibits improved thermal

characteristics, and is compatible with TI's roadmap for RoHS and lead-free compliance.

Operating from a wide-input voltage range of 7 V to 36 V, the PTN78000 provides high-efficiency, step-down

voltage conversion for loads of up to 1.5 A. The output voltage is set using a single external resistor, and may be

set to any value within the range, 2.5 V to 12.6 V. The output voltage can be as little as 2 V lower than the input,

allowing operation down to 7 V, with an output voltage of 5 V.

The PTN78000 has an integral on/off inhibit, and is suited to a wide variety of general-purpose applications that

operate off 12-V, 24-V, or 28-V dc power.

STANDARD APPLICATION

PTN78000W

(Top View)

C *

2.2 mF

100 mF

Electrolytic

(Required)

Ceramic

(Required)

SET

0.05 W, 1%

(Required)

Inhibit

GND

*See The Application Information for Capacitor Recommendation.

#R is Required to Adjust the Output Voltage Higher Than 2.5 V.

SET

See The Application Information for Values.

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.

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...20

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