Datasheet LT1615, LT1615-1 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Micropower Step-Up DC/DC Converters in ThinSOT |
| Pages / Page | 8 / 2 — ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL … |
| File Format / Size | PDF / 168 Kb |
| Document Language | English |
ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL CHARACTERISTICS The
Model Line for this Datasheet
Text Version of Document
LT1615/LT1615-1
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
ORDER PART VIN, SHDN Voltage ... 15V NUMBER SW Voltage .. 36V TOP VIEW LT1615ES5 FB Voltage ...VIN LT1615ES5-1 Current into FB Pin ... 1mA SW 1 5 VIN LT1615IS5 Junction Temperature ... 125°C GND 2 FB 3 4 SHDN LT1615IS5-1 Operating Temperature Range (Note 2) .. – 40°C to 85°C Storage Temperature Range ... – 65°C to 150°C S5 PACKAGE S5 PART MARKING 5-LEAD PLASTIC SOT-23 Lead Temperature (Soldering, 10 sec).. 300°C TJMAX = 125°C, θJA = 256°C/W LTIZ LTKH LTXZ LTBHT Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 1.2V, VSHDN = 1.2V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage LT1615-1 1.0 V LT1615 1.2 V Quiescent Current Not Switching 20 30 µA VSHDN = 0V 1 µA FB Comparator Trip Point ● 1.205 1.23 1.255 V FB Comparator Hysteresis 8 mV Output Voltage Line Regulation 1.2V < VIN < 12V 0.05 0.1 %/V FB Pin Bias Current (Note 3) VFB = 1.23V ● 30 80 nA Switch Off Time VFB > 1V 400 ns VFB < 0.6V 1.5 µs Switch VCESAT ISW = 70mA (LT1615-1) 85 120 mV ISW = 300mA (LT1615) 250 350 mV Switch Current Limit LT1615-1 75 100 125 mA LT1615 300 350 400 mA SHDN Pin Current VSHDN = 1.2V 2 3 µA VSHDN = 5V 8 12 µA SHDN Input Voltage High 0.9 V SHDN Input Voltage Low 0.25 V Switch Leakage Current Switch Off, VSW = 5V 0.01 5 µA
Note 1:
Absolute Maximum Ratings are those values beyond which the life characterization and correlation with statistical process controls. The of a device may be impaired. LT1615I/LT1615I-1 is guaranteed to meet performance specifications over
Note 2:
The LT1615E and LT1615E-1 are guaranteed to meet performance the –40°C to 85°C operating temperature range. specifications from 0°C to 70°C. Specifications over the
Note 3:
Bias current flows into the FB pin. – 40°C to 85°C operating temperature range are assured by design, sn16151 16151fas 2
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
ORDER PART VIN, SHDN Voltage ... 15V NUMBER SW Voltage .. 36V TOP VIEW LT1615ES5 FB Voltage ...VIN LT1615ES5-1 Current into FB Pin ... 1mA SW 1 5 VIN LT1615IS5 Junction Temperature ... 125°C GND 2 FB 3 4 SHDN LT1615IS5-1 Operating Temperature Range (Note 2) .. – 40°C to 85°C Storage Temperature Range ... – 65°C to 150°C S5 PACKAGE S5 PART MARKING 5-LEAD PLASTIC SOT-23 Lead Temperature (Soldering, 10 sec).. 300°C TJMAX = 125°C, θJA = 256°C/W LTIZ LTKH LTXZ LTBHT Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 1.2V, VSHDN = 1.2V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage LT1615-1 1.0 V LT1615 1.2 V Quiescent Current Not Switching 20 30 µA VSHDN = 0V 1 µA FB Comparator Trip Point ● 1.205 1.23 1.255 V FB Comparator Hysteresis 8 mV Output Voltage Line Regulation 1.2V < VIN < 12V 0.05 0.1 %/V FB Pin Bias Current (Note 3) VFB = 1.23V ● 30 80 nA Switch Off Time VFB > 1V 400 ns VFB < 0.6V 1.5 µs Switch VCESAT ISW = 70mA (LT1615-1) 85 120 mV ISW = 300mA (LT1615) 250 350 mV Switch Current Limit LT1615-1 75 100 125 mA LT1615 300 350 400 mA SHDN Pin Current VSHDN = 1.2V 2 3 µA VSHDN = 5V 8 12 µA SHDN Input Voltage High 0.9 V SHDN Input Voltage Low 0.25 V Switch Leakage Current Switch Off, VSW = 5V 0.01 5 µA
Note 1:
Absolute Maximum Ratings are those values beyond which the life characterization and correlation with statistical process controls. The of a device may be impaired. LT1615I/LT1615I-1 is guaranteed to meet performance specifications over
Note 2:
The LT1615E and LT1615E-1 are guaranteed to meet performance the –40°C to 85°C operating temperature range. specifications from 0°C to 70°C. Specifications over the
Note 3:
Bias current flows into the FB pin. – 40°C to 85°C operating temperature range are assured by design, sn16151 16151fas 2
