Electronic Components Datasheet Search |
|
LT1301I Datasheet(PDF) 7 Page - Linear Technology |
|
LT1301I Datasheet(HTML) 7 Page - Linear Technology |
7 / 12 page 7 LT1301 EFFICIENCY (%) COMPONENT PART NUMBER VENDOR L ( µH) DCR (Ω)VIN(V) ILIM PIN 30mA 60mA 120mA HEIGHT (mm) PHONE NUMBER DO3316-333 Coilcraft 33 0.088 3.3 Open 84 84 85 5.5 (708) 639–6400 5 Open 89 89 90 DO1608-223 Coilcraft 22 .31 3.3 Open 82 82 — 3.5 3.3 Ground 85 — — 5 10k 86 87 — 5 Ground 88 — — DO1608-103 Coilcraft 10 .11 2 Open 78 — — 3.5 CTX20-1 Coiltronics 20 .175 3.3 Open 84 84 — 4.2 (407) 241-7876 5 Open 88 88 89 GA10-332 Gowanda 33 .077 3.3 Open 86 86 87 Through-Hole (716) 532-2234 5 Open 89 89 90 LQH3G220K04M00 Murata-Erie 22 0.7 3.3 Ground 81 — — 2.0 (404) 436-1300 5 Ground 85 — — CD73-330KC Sumida 33 0.131 3.3 Open 84 85 86 3.5 (708) 956-0666 5 Open 88 88 89 CDRH62-330MC Sumida 33 0.48 3.3 Open 80 80 81 3.0 Ground 85 — — 5 Open 84 84 85 Ground 83 — — APPLICATIONS INFORMATION Table 1. Recommended Inductors VENDOR SERIES TYPE PHONE# AVX TPS Surface Mount (803)448–9411 Sanyo OS-CON Through-Hole (619) 661–6835 Panasonic HFQ Through-Hole (201) 348-5200 Table 2. Recommended Capacitors switching. Zero load current causes the LT1301 to switch so infrequently that C3 can completely discharge reducing subsequent peak switch current to 400mA. If a load is suddenly applied, output voltage will sag until C3 can be recharged and peak switch current returns to 1A. If the full capacity of the LT1301 is not required peak current can be reduced by changing the value of R3 as shown in Figure 8. With R3 = 0 switch current is limited to approximately 400mA. Smaller, less expensive inductors with lower saturation ratings can then be used. Inductor Selection For full output power, the inductor should have a satura- tion current rating of 1.25A for worst-case current limit, although it is acceptable to bias an inductor 20% or more into saturation. Smaller inductors can be used in conjunc- tion with the ILIM pin. Efficiency is significantly affected by inductor DCR. For best efficiency limit the DCR to 0.03 Ω or less. Toroidal types are preferred in some cases due to their inherent flux containment and EMI/RFI superiority. Recommended inductors are listed in Table 1. Figure 8. Peak Switch Current vs. Current Limit Set Resistor CURRENT LIMIT SET RESISTOR ( Ω) 500 700 800 1000 1100 100 10k 100k 1M LT1301 F8 300 1k 900 600 400 1.6V ≤ VIN ≤ 5V |
Similar Part No. - LT1301I |
|
Similar Description - LT1301I |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |