LM317MT 데이터 시트보기 (PDF) - Fairchild Semiconductor

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LM317MT

3-Terminal 0.5A Positive Adjustable Regulator

Fairchild Semiconductor 

Block Diagram

InVpiunt 3

+

-

V olta ge

Re fe re nce

P rote ction

Circ uitry

1

V ad j

Figure 1. Block Diagram

R lim it

2 Vo

Output

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-

ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-

tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The

absolute maximum ratings are stress ratings only. Values are at TA = 25°C unless otherwise noted.

Symbol

Parameter

Value

Unit

VI - VO

TJ

TSTG

Input-Output Voltage Differential

Operating Junction Temperature Range

Storage Temperature Range

40

V

0 to +125

°C

-65 to +125

°C

Thermal Characteristics

Values are at TA = 25°C unless otherwise noted.

Symbol

Parameter

Value

LM317MT

LM317MDTX /

LM317MDTXM(1),(2)

PD

RθJC

RθJA

Notes:

Power Dissipation

Thermal Resistance, Junction to Case

Thermal Resistance, Junction to Ambient

Internally Limited

5

-

81

100

1. Thermal resistance test board - size: 76.2 mm x 114.3 mm x 1.6 mm (1S0P),

JEDEC standard: JESD51-3, JESD51-7

2. Assume no ambient airflow

Unit

W

°C/W

°C/W

© 2003 Fairchild Semiconductor Corporation

LM317M Rev. 1.1.0

2

www.fairchildsemi.com

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