LM2576/LM2576HV
1
LM2576/LM2576HV ㋏߫
3A ᓔ݇ൟ䰡〇఼
ὖ䗄
LM2576㋏߫ⱘ〇఼ᰃ⠛䲚៤⬉䏃 㛑ᦤկ䰡ᓔ݇〇఼ buck ⱘ⾡ࡳ㛑 㛑偅ࡼ3Aⱘ䋳䕑 ᳝Ӭᓖⱘ㒓
ᗻ䋳䕑䇗ᭈ㛑
䖭ѯ఼ӊⱘᅮ䕧ߎ⬉᳝3.3V
5V 12V 15V
䖬᳝ৃ䇗ᭈ䕧ߎⱘൟো
䖭ѯ〇఼ݙ䚼᳝乥⥛㸹఼ٓϔϾᅮ乥⥛ᤃ㤵఼ ᇚ䚼ܗӊⱘ᭄Ⳃޣࠄ᳔ᇥ Փ⫼ㅔ֓
LM2576ⱘᬜ⥛↨⌕㸠ⱘϝ↉㒓ᗻ〇఼㽕催ⱘ ᰃ⧚ᛇⱘ᳓ҷ ϔ㠀ᚙމϟϡ䳔㽕া㽕ᕜᇣሎᇌⱘࡴᬷ⛁⠛
Ꮖ㒣Ӭ࣪ৃLM2576ϔ䍋Փ⫼ⱘޚ㋏߫⬉ᛳ⬅དϾϡৠⱘ⬉ᛳ⫳៤ଚᦤկ ℸ⡍ᕕㅔ࣪њᓔ݇⬉⑤ⱘ䆒䅵
݊ᅗ⡍ᕕࣙᣀ ᣛᅮ䕧ܹ⬉䕧ߎ䋳䕑ᴵӊϟֱ䆕䕧ߎ⬉ⱘ±4%䇃Ꮒ ҹঞᤃ㤵఼乥⥛ⱘ±10%䇃Ꮒ 䖬ࣙᣀ
䚼ⱘ݇ᮁ⬉䏃
⡍ᕕ᳝50µA ൟؐ ᕙᴎ⬉⌕
䕧ߎᓔ݇ࣙᣀ䗤䰤⌕ ҹঞᬙ䱰⢊ᗕϟᦤկᅠֱܼᡸⱘ⛁݇ᮁࡳ㛑
ᅮ䌁ֵᙃ
䕧ߎ⬉
3.3
5.0 12 15
ৃ䇗
ᇕ㺙ᔶᓣ
LM2576S-3.3 LM2576S-5.0 LM2576S-12 LM2576S-15 LM2576S-ADJ
LM2576HVS-3.3 LM2576HVS-5.0 LM2576HVS-12 LM2576HVS-15 LM2576HVS-ADJ
TO-263
LM2576T-3.3 LM2576T-5.0 LM2576T-12 LM2576T-15 LM2576T-ADJ
Ꮉ⏽ᑺ
㣗ೈ
LM2576HVT-3.3 LM2576HVT-5.0 LM2576HVT-12 LM2576HVT-15 LM2576HVT-ADJ
TO-220
ㅵ㛮ᅮН
ᑨ⫼
ㅔ催ᬜⱘ䰡 Buck 〇఼
㒓ᗻ〇఼ⱘ催ᬜ乘〇఼
Ϟᓔ݇〇఼
ℷࠄ䋳ⱘবᤶ఼
Buck-Boost
䋳বᤶ఼
Ў⬉∴ܙ⬉఼خ⬉⑤
ϢNational Semi.
On Semi.ⱘLM2576ᅠܼѦᤶ
⡍⚍
3.3V 5V 12V 15V ৃ䇗㡖䕧ߎ⬉ൟো
ৃ䇗㡖䕧ߎൟো䕧ߎ⬉㣗ೈ㒓ᗻ䋳䕑ᴵӊϟ
1.23~37V
HVൟো57V
᳔±4%
ֱ䆕3.0A䕧ߎ⬉⌕
䕧ܹ⬉㣗ೈᑓ
40V㟇HVൟোⱘ60V
া䳔4Ͼ䚼఼ӊᬃᣕ
52kHzᅮ乥⥛ݙ䚼ᤃ㤵఼
TTL݇ᮁ㛑
Ԣࡳ㗫ᕙᴎᓣ
催ᬜ⥛
Փ⫼⦄៤ৃ⫼ⱘޚ⬉ᛳ
⛁݇ᮁঞ⬉⌕䰤ࠊֱᡸ
LM2576T-XX LM2576HVT-XX
Ⳉ㛮
5 㛮 TO-220 (T)
Ϟ㾚
LM2576T-XX
LM2576HVT-XX
ᔃ᳆
䫭ԡ㛮
5 㛮 TO-220 (T)
Ϟ㾚
TO-263 (S)
LM2576S-XX LM2576HVS-XX
5 㛮 䌈⠛ᇕ㺙
Ϟ㾚
地址: 南京市和燕路 5 号，燕语华庭 10 幢 1-702 室, 邮编:210037 电话(TEL.): (86)-25-8562 8245， 8562 8265 传真(FAX): (86)-25-8562 8352
ADD.: RM. 1-702, NO. 10 BUILDING, YANYUHUATING, NO. 5 HEYAN ROAD, NANJING, P.C.:210037, CHINA WEB-SITE: WWW.HN-ELEC.COM
