Datasheet LT3150 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | Fast Transient Response, Low Input Voltage, Very Low Dropout Linear Regulator Controller |
| 页数 / 页 | 20 / 2 — ABSOLUTE AXI U RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL … |
| 文件格式/大小 | PDF / 265 Kb |
| 文件语言 | 英语 |
ABSOLUTE AXI U RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL CHARACTERISTICS. The
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LT3150
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
VIN1, SHDN1 Voltage .. 10V TOP VIEW ORDER PART SW Voltage .. – 0.4V to 36V SW 1 16 FB1 NUMBER FB1 Voltage .. VIN1 + 0.3V SWGND 2 15 GND Current into FB1, FB2 Pin .. ±1mA LT3150CGN V 3 14 IN1 SHDN1 VIN2, IPOS, INEG ... 22V SHDN2 4 13 IPOS SHDN2 .. VIN2 V 5 12 IN2 INEG Operating Ambient Temperature Range ... 0°C to 70°C GND 6 11 GATE GN PART Junction Temperature (Note 2) ... 125°C NC 7 10 NC MARKING Storage Temperature Range .. – 65°C to 150°C FB2 8 9 COMP 3150 Lead Temperature (Soldering, 10 sec)... 300°C GN PACKAGE 16-LEAD PLASTIC SSOP TJMAX = 125°C, θJA = 130°C/W, θJC = 40°C/W Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN1 = 1.5V, VSHDN1 = VIN1, VIN2 = 12V, GATE = 6V, IPOS = INEG = 5V, VSHDN2 = 0.75V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Boost Switching Regulator
VIN1 Minimum Operating Voltage 0.9 1.1 V VIN1 Maximum Operating Voltage 10 V VFB1 FB1 Reference Voltage ● 1.20 1.23 1.255 V FB1 Input Bias Current Current Flows into Pin ● 27 80 nA IQ1 VIN1 Quiescent Current VSHDN1 = 1.5V 3 4.5 mA VIN1 Quiescent Current in Shutdown VSHDN1 = 0V, VIN1 = 2V 0.01 0.5 µA VSHDN1 = 0V, VIN1 = 5V 0.01 1.0 µA FB1 Reference Line Regulation 1.5V ≤ VIN1 ≤ 10V 0.02 0.2 %/V Switching Frequency ● 1 1.4 1.9 MHz Maximum Duty Cycle ● 82 86 % Switch Current Limit (Note 3) 550 800 mA Switch VCESAT ISW = 300mA 300 350 mV Switch Leakage Current VSW = 5V 0.01 1 µA SHDN1 Input Voltage High 1 V SHDN1 Input Voltage Low 0.3 V SHDN1 Input Bias Current VSHDN1 = 3V, Current Flows into Pin 25 50 µA VSHDN1 = 0V, Current Flows into Pin 0.01 0.1 µA
Linear Regulator Controller
IQ2 VIN2 Quiescent Current ● 5 12 19 mA VFB2 FB2 Reference Voltage 1.203 1.210 1.217 V ● 1.198 1.210 1.222 V FB2 Line Regulation 10V ≤ VIN2 ≤ 20V ● 0.01 0.03 %/V FB2 Input Bias Current FB2 = VFB2, Current Flows out of Pin ● –0.6 –4 µA 3150f 2
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
VIN1, SHDN1 Voltage .. 10V TOP VIEW ORDER PART SW Voltage .. – 0.4V to 36V SW 1 16 FB1 NUMBER FB1 Voltage .. VIN1 + 0.3V SWGND 2 15 GND Current into FB1, FB2 Pin .. ±1mA LT3150CGN V 3 14 IN1 SHDN1 VIN2, IPOS, INEG ... 22V SHDN2 4 13 IPOS SHDN2 .. VIN2 V 5 12 IN2 INEG Operating Ambient Temperature Range ... 0°C to 70°C GND 6 11 GATE GN PART Junction Temperature (Note 2) ... 125°C NC 7 10 NC MARKING Storage Temperature Range .. – 65°C to 150°C FB2 8 9 COMP 3150 Lead Temperature (Soldering, 10 sec)... 300°C GN PACKAGE 16-LEAD PLASTIC SSOP TJMAX = 125°C, θJA = 130°C/W, θJC = 40°C/W Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN1 = 1.5V, VSHDN1 = VIN1, VIN2 = 12V, GATE = 6V, IPOS = INEG = 5V, VSHDN2 = 0.75V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Boost Switching Regulator
VIN1 Minimum Operating Voltage 0.9 1.1 V VIN1 Maximum Operating Voltage 10 V VFB1 FB1 Reference Voltage ● 1.20 1.23 1.255 V FB1 Input Bias Current Current Flows into Pin ● 27 80 nA IQ1 VIN1 Quiescent Current VSHDN1 = 1.5V 3 4.5 mA VIN1 Quiescent Current in Shutdown VSHDN1 = 0V, VIN1 = 2V 0.01 0.5 µA VSHDN1 = 0V, VIN1 = 5V 0.01 1.0 µA FB1 Reference Line Regulation 1.5V ≤ VIN1 ≤ 10V 0.02 0.2 %/V Switching Frequency ● 1 1.4 1.9 MHz Maximum Duty Cycle ● 82 86 % Switch Current Limit (Note 3) 550 800 mA Switch VCESAT ISW = 300mA 300 350 mV Switch Leakage Current VSW = 5V 0.01 1 µA SHDN1 Input Voltage High 1 V SHDN1 Input Voltage Low 0.3 V SHDN1 Input Bias Current VSHDN1 = 3V, Current Flows into Pin 25 50 µA VSHDN1 = 0V, Current Flows into Pin 0.01 0.1 µA
Linear Regulator Controller
IQ2 VIN2 Quiescent Current ● 5 12 19 mA VFB2 FB2 Reference Voltage 1.203 1.210 1.217 V ● 1.198 1.210 1.222 V FB2 Line Regulation 10V ≤ VIN2 ≤ 20V ● 0.01 0.03 %/V FB2 Input Bias Current FB2 = VFB2, Current Flows out of Pin ● –0.6 –4 µA 3150f 2