 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LTC3618 Datasheet(PDF) 3 Page - Linear Integrated Systems |
|
|
|||||||||||||||||||||||||||||
LTC3618 Datasheet(HTML) 3 Page - Linear Integrated Systems |
|
|
3 / 24 page  LTC3618 3 3618fb ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Operating Voltage Range l 2.25 5.5 V VUVLO Undervoltage Lockout Threshold SVIN Ramping Down 1.8 V SVIN Ramping Up 2.2 V OVLO Overvoltage Lockout Threshold SVIN Ramping Down Hysteresis 6.2 300 V mV VFB1 VDDQ Feedback Voltage Internal Reference with Line and Load Regulation (Note 3) VTRACK/SS1 = SVIN 0°C < TJ < 85°C –40°C < TJ < 125°C l 0.592 0.590 0.6 0.608 0.610 V V Feedback Voltage External Reference (Note 6) (Note 3) VTRACK/SS1 = 0.3V 0.289 0.3 0.311 V (Note 3) VTRACK/SS1 = 0.5V 0.489 0.5 0.511 V VFB2 VTT Feedback Reference Voltage with Line and Load Regulation VDDQIN = 1.5V l VTTR – 6 VTTR VTTR + 6 mV VTTR VTTR Output Voltage with Line and Load Regulation VDDQIN = 1.5V, ILOAD = ±10mA, CLOAD = < 0.1μF l 0.49 • VDDQ 0.5 • VDDQ 0.51 • VDDQ V IFB Feedback Input Current VFBx = 0.6V l 0 ±30 nA VTTR Maximum Output Current ±10 mA IS Input Supply Current, Active Mode VFB1 = 0.5V, VMODE = SVIN, VRUN1 = SVIN, VRUN2 = 0V, (Note 5) 2.4 mA VFBx = 0.5V, VMODE = SVIN, VRUNx = SVIN, (Note 5) 2.8 mA Input Supply Current, Shutdown SVIN = PVIN = 5.5V, VRUNx = 0V 0.1 1 μA RDS(ON) Top Switch On-Resistance PVINx = 3.3V (Note 9) 75 mΩ Bottom Switch On-Resistance PVINx = 3.3V (Note 9) 55 mΩ ILIMX Peak Current Limit Positive Limit Negative Limit Sourcing (Note 7), VFBX = 0.5V Sinking (Note 7), VFBX = 0.7V 4.2 –2.5 5.5 –3.5 8.0 –5.5 A A ISW(LKG) Switch Leakage Current SVIN = PVIN = 5.5V, VRUNx = 0V 0.01 1 μA gm(EA) Error Amplifier Transconductance –5μA < ITH < 5μA 240 μmho IEAO Error Amplifier Output Current (Note 4) ±30 μA tSOFT-START1 VDDQ Internal Soft-Start Time VFB1 from 0.06V to 0.54V, TRACK/SS1 = SVIN 0.5 1.1 2 ms tSOFT-START2 VTT Internal Soft-Start Time VFB2 from 0V to 0.75V 0.25 0.6 1 ms RON(TRACK/SS1_DIS) TRACK/SS1 Pull-Down Resistance at Start-Up 200 Ω tTRACK/SS1_DIS Soft-Start Discharge Time at Start-Up 65 μs fOSC Oscillator Frequency RRT = 178k l 1.85 2.25 2.65 MHz Internal Default Oscillator Frequency VRT = SVIN l 1.8 2.25 2.7 MHz fSYNC Synchronization Frequency tLOW , tHIGH > 30ns 0.4 4 MHz VMODE/SYNC SYNC Level High Voltage 1.2 V SYNC Level Low Voltage 0.3 V ϕSW1–SW2 Output Phase Shift Between SW1 and SW2 VPHASE < 0.15 • SVIN 0Deg 0.35 • SVIN < VPHASE < 0.65 • SVIN 90 Deg VPHASE > 0.85 • SVIN 180 Deg The l denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2), SVIN = PVINx = 3.3V, RT = 178k, unless otherwise specified. |
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | 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 |
New Zealand ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
