Datasheet LT1120 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Micropower Regulator with Comparator and Shutdown |
| 页数 / 页 | 12 / 3 — ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 138 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply over the full
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LT1120
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. Tj = 25
°
C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Feedback Sense Voltage VIN = 12V 2.44 2.5 2.56 V Shutdown Pin Voltage Normal 0.4 V VOUT ≤ 0.5V Shutdown 2.2 1.4 V Shutdown Pin Current VIN = 1.4V 25 μA Feedback Bias Current 15 40 nA Minimum Load Current VIN = 36V 1 5 μA Short-Circuit Current VIN = 36V 300 400 mA
Comparator
Offset Voltage VIN = 36V 3 7 mV Bias Current VIN = 36V (Note 2) 15 40 nA Gain ΔVOUT = 29V, RL = 20k 2000 10000 V/V Power Supply Rejection 4.5V ≤ VS ≤ 36V 80 96 dB Output Sink Current VIN = 4.5V 10 18 mA Saturation Voltage IOUT = 1mA 0.4 0.6 V Input Voltage Range 0 VIN – 1 V Response Time 5 μs Leakage Current 2 μA
The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. PARAMETER CONDITIONS MIN TYP MAX UNITS Reference
Reference Voltage 4.5V ≤ VIN ≤ 36V ● 2.40 2.50 2.55 V Line Regulation 4.5V ≤ VIN ≤ 36V ● 0.01 0.02 %/V Load Regulation – 2mA ≤ IREF ≤ 2mA, VIN = 12V ● 0.4 0.8 % Output Source Current VIN = 5V ● 2 mA Output Sink Current VIN = 5V ● 2 mA
Regulator
Supply Current VIN = 6V, IOUT ≤ 100μA ● 65 95 μA VIN = 36V, IOUT ≤ 100μA ● 85 100 μA VIN = 12V, IOUT = 125mA ● 11 20 mA Output Current (VIN – VOUT) ≥ 1V, VIN ≥ 6V ● 125 mA Load Regulation (VIN – VOUT) ≥ 1V, VIN ≥ 6V ● 1 % Line Regulation 6V ≤ VIN ≤ 36V ● 0.02 %/V Dropout Voltage IOUT = 100μA ● 0.06 V IOUT = 125mA ● 0.85 V Feedback Sense Voltage VIN = 12V ● 2.38 2.5 2.57 V Feedback Bias Current ● 50 nA Minimum Load Current VIN = 36V ● 50 μA Short-Circuit Current VIN = 36V ● 300 400 mA 1120fd 3
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. Tj = 25
°
C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Feedback Sense Voltage VIN = 12V 2.44 2.5 2.56 V Shutdown Pin Voltage Normal 0.4 V VOUT ≤ 0.5V Shutdown 2.2 1.4 V Shutdown Pin Current VIN = 1.4V 25 μA Feedback Bias Current 15 40 nA Minimum Load Current VIN = 36V 1 5 μA Short-Circuit Current VIN = 36V 300 400 mA
Comparator
Offset Voltage VIN = 36V 3 7 mV Bias Current VIN = 36V (Note 2) 15 40 nA Gain ΔVOUT = 29V, RL = 20k 2000 10000 V/V Power Supply Rejection 4.5V ≤ VS ≤ 36V 80 96 dB Output Sink Current VIN = 4.5V 10 18 mA Saturation Voltage IOUT = 1mA 0.4 0.6 V Input Voltage Range 0 VIN – 1 V Response Time 5 μs Leakage Current 2 μA
The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. PARAMETER CONDITIONS MIN TYP MAX UNITS Reference
Reference Voltage 4.5V ≤ VIN ≤ 36V ● 2.40 2.50 2.55 V Line Regulation 4.5V ≤ VIN ≤ 36V ● 0.01 0.02 %/V Load Regulation – 2mA ≤ IREF ≤ 2mA, VIN = 12V ● 0.4 0.8 % Output Source Current VIN = 5V ● 2 mA Output Sink Current VIN = 5V ● 2 mA
Regulator
Supply Current VIN = 6V, IOUT ≤ 100μA ● 65 95 μA VIN = 36V, IOUT ≤ 100μA ● 85 100 μA VIN = 12V, IOUT = 125mA ● 11 20 mA Output Current (VIN – VOUT) ≥ 1V, VIN ≥ 6V ● 125 mA Load Regulation (VIN – VOUT) ≥ 1V, VIN ≥ 6V ● 1 % Line Regulation 6V ≤ VIN ≤ 36V ● 0.02 %/V Dropout Voltage IOUT = 100μA ● 0.06 V IOUT = 125mA ● 0.85 V Feedback Sense Voltage VIN = 12V ● 2.38 2.5 2.57 V Feedback Bias Current ● 50 nA Minimum Load Current VIN = 36V ● 50 μA Short-Circuit Current VIN = 36V ● 300 400 mA 1120fd 3