截图的快捷键
February 2008Rev 71/21
LM217M LM317M
Medium current 1.2 to 37 V adjustable voltage regulator
Features
■Output voltage range: 1.2 to 37 V ■Output current in excess of 500 mA ■Line regulation typ. 0.01 %■Load regulation typ. 0.1 %■Thermal overload protection ■Short circuit protection
■Output transition safe area compensation ■
Floating operation for high voltage applications
Description
The LM217M/LM317M are monolithic integrated circuits in TO-220 and DPAK packages intended for u as positive adjustable voltage regulators. They are designed to supply until 500 mA of load current with an output voltage adjustable over a 1.2 to 37 V range.
The nominal output voltage is lected by means of only a resistive divider, making the device
exceptionally easy to u and eliminating the stocking of many fixed regulators.崎岖
Table 1.
Device summary
Order codes
TO-220吃什么补肾虚
DPAK (tape and reel)
LM217MDT -TR
LM317MT
LM317MDT -TR
Contents LM217M - LM317M
Contents
1Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.1External capacitors (Figure8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.2Protection diodes (Figure8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
虎皮鹦鹉怎么分辨公母6.3Start-up block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7Application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 9Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2/21
LM217M - LM317M Diagram 1 Diagram
3/21
百香果柠檬蜂蜜
Pin configuration LM217M - LM317M 2 Pin configuration
守字开头的成语
4/21
LM217M - LM317M Maximum ratings
5/21
3 Maximum ratings
Table 2.
Absolute maximum ratings
Symbol Parameter
建党节活动Value Unit V I -V O Input-output differential voltage 40
V P D Power dissipation
Internally limited mW T OP Operating junction temperature range (1)1.Re-Boot is not guaranteed for T J ≥ 85°C.
for LM217M -40 to 125°C for LM317M
0 to 125T STG
Storage temperature range
-55 to 150
°C
Table 3.
Thermal data
Symbol Parameter
TO-220DPAK Unit R thJC Thermal resistance junction-ca 38°C/W R thJA
卢俊义人物简介
Thermal resistance junction-ambient
50
100
°C/W
