Electronic Components Datasheet Search |
|
LT1377 Datasheet(PDF) 3 Page - Linear Technology |
|
LT1377 Datasheet(HTML) 3 Page - Linear Technology |
3 / 12 page 3 LT1372/LT1377 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Maximum Switch Duty Cycle q 85 95 % Switch Current Limit Blanking Time 130 260 ns BV Output Switch Breakdown Voltage LT1372/LT1377 q 35 47 V LT1372HV 0 °C ≤ TJ ≤ 125°C q 42 47 V – 40 °C ≤ TJ < 0°C (I Grade) 40 V VSAT Output Switch “On” Resistance ISW = 1A q 0.5 0.8 Ω ILIM Switch Current Limit Duty Cycle = 50% q 1.5 1.9 2.7 A Duty Cycle = 80% (Note 2) q 1.3 1.7 2.5 A ∆IIN Supply Current Increase During Switch On-Time 15 25 mA/A ∆ISW Control Voltage to Switch Current 2A/V Transconductance Minimum Input Voltage q 2.4 2.7 V IQ Supply Current 2.7V ≤ VIN ≤ 25V q 4 5.5 mA Shutdown Supply Current 2.7V ≤ VIN ≤ 25V, VS/S ≤ 0.6V 0 °C ≤ TJ ≤ 125°C q 12 30 µA – 40 °C ≤ TJ < 0°C (I Grade) 50 µA Shutdown Threshold 2.7V ≤ VIN ≤ 25V q 0.6 1.3 2 V Shutdown Delay q 512 25 µs S/S Pin Input Current 0V ≤ VS/S ≤ 5V q –10 15 µA Synchronization Frequency Range LT1372 q 600 800 kHz LT1377 q 1.2 1.6 MHz Switch Saturation Voltage vs Switch Current TEMPERATURE ( °C) –50 1.8 2.0 2.2 2.4 2.6 050 100 150 LT1372 • G03 2.8 3.0 –25 25 75 125 Minimum Input Voltage vs Temperature DUTY CYCLE (%) 0 1.0 2.0 3.0 0.5 1.5 2.5 20 40 60 80 LT1372 • G02 100 10 0 30 50 70 90 25 °C AND 125 °C –55 °C Switch Current Limit vs Duty Cycle TYPICAL PERFORMANCE CHARACTERISTICS SWITCH CURRENT (A) 0 0.6 0.8 1.0 1.6 LT1372 • G01 0.4 0.2 0.5 0.7 0.9 0.3 0.1 0 0.4 0.8 1.2 2.0 1.4 0.2 0.6 1.0 1.8 100 °C 150 °C 25 °C –55 °C Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. The q denotes specifcatons which appy over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 5V, VC = 0.6V, VFB = VREF, VSW, S/S and NFB pins open, unless otherwise noted. ELECTRICAL CHARACTERISTICS Note 2: For duty cycles (DC) between 50% and 90%, minimum guaranteed switch current is given by ILIM = 0.667 (2.75 – DC). |
Similar Part No. - LT1377 |
|
Similar Description - LT1377 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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 |