Datasheet LT1110 (Linear Technology) - 2
| Manufacturer | Linear Technology |
| Description | Micropower DC-DC Converter Adjustable and Fixed 5V, 12V |
| Pages / Page | 16 / 2 — ABSOLUTE. AXI U. R TI GS. PACKAGE/ORDER I FOR ATIO. ELECTRICAL CHAR C. A … |
| File Format / Size | PDF / 323 Kb |
| Document Language | English |
ABSOLUTE. AXI U. R TI GS. PACKAGE/ORDER I FOR ATIO. ELECTRICAL CHAR C. A TERISTICS TA = 25. C, VIN = 1.5V, unless otherwise noted
Model Line for this Datasheet
Text Version of Document
LT1110
W W W U U W U ABSOLUTE AXI U A R TI GS PACKAGE/ORDER I FOR ATIO
Supply Voltage, Step-Up Mode .. 15V TOP VIEW ORDER PART Supply Voltage, Step-Down Mode ... 36V I 1 LIM 8 FB (SENSE)* NUMBER SW1 Pin Voltage .. 50V V 2 IN 7 SET SW2 Pin Voltage ... – 0.5V to VIN SW1 3 6 A0 LT1110CN8 Feedback Pin Voltage (LT1110) .. 5.5V SW2 4 5 GND LT1110CN8-5 Switch Current .. 1.5A LT1110CN8-12 Maximum Power Dissipation ... 500mW N8 PACKAGE 8-LEAD PLASTIC DIP Operating Temperature Range ... 0°C to 70°C *FIXED VERSIONS Storage Temperature Range .. –65°C to 150°C TJMAX = 90°C, θJA = 130°C/W Lead Temperature (Soldering, 10 sec.)... 300°C TOP VIEW LT1110CS8 I 1 8 FB (SENSE)* LIM LT1110CS8-5 V 2 7 SET IN LT1110CS8-12 SW1 3 6 A0 S8 PART MARKING SW2 4 5 GND S8 PACKAGE 1110 8-LEAD PLASTIC SOIC 11105 *FIXED VERSIONS TJMAX = 90°C, θJA = 150°C/W 11012 Consult factory for Industrial and Military grade parts.
ELECTRICAL CHAR C A TERISTICS TA = 25
°
C, VIN = 1.5V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IQ Quiescent Current Switch Off ● 300 µA VIN Input Voltage Step-Up Mode ● 1.15 12.6 V 1.0 12.6 V Step-Down Mode ● 30 V Comparator Trip Point Voltage LT1110 (Note 1) ● 210 220 230 mV VOUT Output Sense Voltage LT1110-5 (Note 2) ● 4.75 5.00 5.25 V LT1110-12 (Note 2) ● 11.4 12.00 12.6 V Comparator Hysteresis LT1110 ● 4 8 mV Output Hysteresis LT1110-5 ● 90 180 mV LT1110-12 ● 200 400 mV fOSC Oscillator Frequency ● 52 70 90 kHz DC Duty Cycle Full Load (VFB < VREF) ● 62 69 78 % tON Switch ON Time ● 7.5 10 12.5 µs IFB Feedback Pin Bias Current LT1110, VFB = 0V ● 70 150 nA ISET Set Pin Bias Current VSET = VREF ● 100 300 nA VAO AO Output Low IAO = –300µA, VSET = 150mV ● 0.15 0.4 V Reference Line Regulation 1.0V ≤ VIN ≤ 1.5V ● 0.35 1.0 %/V 1.5V ≤ VIN ≤ 12V ● 0.05 0.1 %/V 2
W W W U U W U ABSOLUTE AXI U A R TI GS PACKAGE/ORDER I FOR ATIO
Supply Voltage, Step-Up Mode .. 15V TOP VIEW ORDER PART Supply Voltage, Step-Down Mode ... 36V I 1 LIM 8 FB (SENSE)* NUMBER SW1 Pin Voltage .. 50V V 2 IN 7 SET SW2 Pin Voltage ... – 0.5V to VIN SW1 3 6 A0 LT1110CN8 Feedback Pin Voltage (LT1110) .. 5.5V SW2 4 5 GND LT1110CN8-5 Switch Current .. 1.5A LT1110CN8-12 Maximum Power Dissipation ... 500mW N8 PACKAGE 8-LEAD PLASTIC DIP Operating Temperature Range ... 0°C to 70°C *FIXED VERSIONS Storage Temperature Range .. –65°C to 150°C TJMAX = 90°C, θJA = 130°C/W Lead Temperature (Soldering, 10 sec.)... 300°C TOP VIEW LT1110CS8 I 1 8 FB (SENSE)* LIM LT1110CS8-5 V 2 7 SET IN LT1110CS8-12 SW1 3 6 A0 S8 PART MARKING SW2 4 5 GND S8 PACKAGE 1110 8-LEAD PLASTIC SOIC 11105 *FIXED VERSIONS TJMAX = 90°C, θJA = 150°C/W 11012 Consult factory for Industrial and Military grade parts.
ELECTRICAL CHAR C A TERISTICS TA = 25
°
C, VIN = 1.5V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IQ Quiescent Current Switch Off ● 300 µA VIN Input Voltage Step-Up Mode ● 1.15 12.6 V 1.0 12.6 V Step-Down Mode ● 30 V Comparator Trip Point Voltage LT1110 (Note 1) ● 210 220 230 mV VOUT Output Sense Voltage LT1110-5 (Note 2) ● 4.75 5.00 5.25 V LT1110-12 (Note 2) ● 11.4 12.00 12.6 V Comparator Hysteresis LT1110 ● 4 8 mV Output Hysteresis LT1110-5 ● 90 180 mV LT1110-12 ● 200 400 mV fOSC Oscillator Frequency ● 52 70 90 kHz DC Duty Cycle Full Load (VFB < VREF) ● 62 69 78 % tON Switch ON Time ● 7.5 10 12.5 µs IFB Feedback Pin Bias Current LT1110, VFB = 0V ● 70 150 nA ISET Set Pin Bias Current VSET = VREF ● 100 300 nA VAO AO Output Low IAO = –300µA, VSET = 150mV ● 0.15 0.4 V Reference Line Regulation 1.0V ≤ VIN ≤ 1.5V ● 0.35 1.0 %/V 1.5V ≤ VIN ≤ 12V ● 0.05 0.1 %/V 2
