Datasheet LTC3785-1 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | 10V, High Efficiency, Buck-Boost Controller with Power Good |
| Pages / Page | 20 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. … |
| File Format / Size | PDF / 224 Kb |
| Document Language | English |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING
Model Line for this Datasheet
Text Version of Document
LTC3785-1
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Input Supply Voltage (V TOP VIEW IN) ... –0.3V to 11V I IN CC BST1 SVOUT, ISVIN .. –0.3V to 11V V V I SVIN V TG1 SW1 SW1, SW2, I 24 23 22 21 20 19 SSW1, ISSW2 Voltage: DC ... –1V to 11V RUN/SS 1 18 ISSW1 Pulsed, <1μs ... –2V to 12V VC 2 17 BG1 FB 3 16 V RUN/SS, MODE, CCM, V DRV DRV, VCC Voltages .. –0.3V to 6V 25 V 4 15 SENSE BG2 PGOOD Voltage .. –0.3V to 6V ILSET 5 14 ISSW2 VBST1 Voltage ... –0.3V to 16V CCM 6 13 SW2 With Respect to SW1 ... –0.3V to 6V 7 8 9 10 11 12 VBST2 Voltage ... –0.3V to 16V RT With Respect to SW2 ... –0.3V to 6V BST2 TG2 MODE PGOOD I SVOUT V Peak Driver Output Current < 10μs UF PACKAGE (TG1, TG2, BG1, BG2) ...3A 24-LEAD (4mm s 4mm) PLASTIC QFN TJMAX = 125°C, θJA = 37°C/W 4 LAYER BOARD VCC Average Output Current ...100mA EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB Operating Temperature Range (Note 2).. –40°C to 85°C Junction Temperature ... 125°C Storage Temperature Range ... –65°C to 125°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3785EUF-1#PBF LTC3785EUF-1#TRPBF 37851 24-Lead (4mm × 4mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = ISVOUT = VDRV = VBST1 = VBST2 = 3.6V, RT = 49.9k, RILSET = 59k. PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Supply
Input Operating Voltage l 2.7 10 V Quiescent Current—Burst Mode Operation VC = 0V, MODE = 3.6V (Note 4) 86 200 μA Quiescent Current—Shutdown RUN/SS = 0V, ISVOUT = 3.6V 15 25 μA Quiescent Current—Active MODE = 0V (Note 4) 0.8 1.5 mA
Error Amp
Feedback Voltage (Note 5) l 1.200 1.225 1.25 V Feedback Input Current 1 500 nA Error Amp Source Current –500 μA Error Amp Sink Current 900 μA Error Amp AVOL 90 dB 37851fa 2
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Input Supply Voltage (V TOP VIEW IN) ... –0.3V to 11V I IN CC BST1 SVOUT, ISVIN .. –0.3V to 11V V V I SVIN V TG1 SW1 SW1, SW2, I 24 23 22 21 20 19 SSW1, ISSW2 Voltage: DC ... –1V to 11V RUN/SS 1 18 ISSW1 Pulsed, <1μs ... –2V to 12V VC 2 17 BG1 FB 3 16 V RUN/SS, MODE, CCM, V DRV DRV, VCC Voltages .. –0.3V to 6V 25 V 4 15 SENSE BG2 PGOOD Voltage .. –0.3V to 6V ILSET 5 14 ISSW2 VBST1 Voltage ... –0.3V to 16V CCM 6 13 SW2 With Respect to SW1 ... –0.3V to 6V 7 8 9 10 11 12 VBST2 Voltage ... –0.3V to 16V RT With Respect to SW2 ... –0.3V to 6V BST2 TG2 MODE PGOOD I SVOUT V Peak Driver Output Current < 10μs UF PACKAGE (TG1, TG2, BG1, BG2) ...3A 24-LEAD (4mm s 4mm) PLASTIC QFN TJMAX = 125°C, θJA = 37°C/W 4 LAYER BOARD VCC Average Output Current ...100mA EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB Operating Temperature Range (Note 2).. –40°C to 85°C Junction Temperature ... 125°C Storage Temperature Range ... –65°C to 125°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3785EUF-1#PBF LTC3785EUF-1#TRPBF 37851 24-Lead (4mm × 4mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = ISVOUT = VDRV = VBST1 = VBST2 = 3.6V, RT = 49.9k, RILSET = 59k. PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Supply
Input Operating Voltage l 2.7 10 V Quiescent Current—Burst Mode Operation VC = 0V, MODE = 3.6V (Note 4) 86 200 μA Quiescent Current—Shutdown RUN/SS = 0V, ISVOUT = 3.6V 15 25 μA Quiescent Current—Active MODE = 0V (Note 4) 0.8 1.5 mA
Error Amp
Feedback Voltage (Note 5) l 1.200 1.225 1.25 V Feedback Input Current 1 500 nA Error Amp Source Current –500 μA Error Amp Sink Current 900 μA Error Amp AVOL 90 dB 37851fa 2
