Datasheet LT3041 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 20 V, 1 A, Ultra-Low Noise, Ultra-High PSRR Linear Regulator with VIOC Control |
| 页数 / 页 | 36 / 3 — LT3041. SPECIFICATIONS. ELECTRICAL CHARACTERISTICS. Table 1. Electrical … |
| 文件格式/大小 | PDF / 2.5 Mb |
| 文件语言 | 英语 |
LT3041. SPECIFICATIONS. ELECTRICAL CHARACTERISTICS. Table 1. Electrical Characteristics. Parameter. Test Conditions/Comments. Min
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LT3041 SPECIFICATIONS ELECTRICAL CHARACTERISTICS
TJ = −40°C to +125°C for the minimum and maximum values, TA = 25°C for the typical values, output capacitance (COUT) = two parallel 10 μF ceramic capacitors, and SET capacitance (CSET) = 4.7 μF, unless otherwise noted.
Table 1. Electrical Characteristics Parameter Test Conditions/Comments Min Typ Max Unit
INPUT VOLTAGE RANGE 2.2 20 V MINIMUM IN PIN VOLTAGE1 Input-voltage (VIN) undervoltage lockout (UVLO) rising 2 2.2 V VIN UVLO hysteresis 80 mV OUTPUT VOLTAGE RANGE VIN > output voltage (VOUT) 0.2 15 V SET PIN CURRENT (ISET) VIN = 2.2 V, IL = 1 mA, VOUT = 1.3 V, TA = 25°C 99.5 100 100.5 µA 2.2 V < VIN < 20 V, 0.2 V < VOUT < 15 V, 1 mA < IL < 1 A2 99 100 101 µA FAST STARTUP ISET PGFB voltage (VPGFB) = 289 mV, VIN = 2.8 V, SET 10 mA voltage (VSET) = 1.3 V OUTPUT OFFSET VOLTAGE, VOS (VOUT – VSET)3 VIN = 2.2 V, IL = 1 mA, VOUT = 1.3 V, TA = 25°C –1 +1 mV 2.2 V < VIN < 20 V, 0.2 V < VOUT < 15 V, 1 mA < IL < 1 A2 –2 +2 mV LINE REGULATION ΔISET VIN = 2.2 V to 20 V, IL = 1 mA, VOUT = 1.3 V 0.1 ±12 nA/V ΔVOS VIN = 2.2 V to 20 V, IL = 1 mA, VOUT = 1.3 V3 1.5 ±30 µV/V LOAD REGULATION ΔISET IL = 1 mA to 1 A, VIN = 2.2 V, VOUT = 1.3 V 3 nA ΔVOS IL = 1 mA to 1 A, VIN = 2.2 V, VOUT = 1.3 V3 0.1 0.8 mV CHANGE IN I 4 SET WITH VSET VSET = 1.3 V to 15 V, VIN = 20 V, IL = 1 mA 140 500 nA VSET = 0.2 V to 0.75 V, VIN = 20 V, IL = 1 mA 10 200 nA CHANGE IN V 4 OS WITH VSET VSET = 1.3 V to 15 V, VIN = 20 V, IL = 1 mA3 0.06 0.6 mV VSET = 0.2 V to 0.75 V, VIN = 20 V, IL = 1 mA3 0.004 0.2 mV ERROR-AMPLIFIER SWITCHOVER POINT VIN = 2.2 V, IL = 1 mA, VSET rising 946 mV PNP to NPN Input-Pair Switchover VIN = 2.2 V, IL = 1 mA, VSET falling 922 mV Hysteresis 24 mV DROPOUT VOLTAGE5 IL = 1 mA and 100 mA, TA = 25°C 290 370 mV IL = 1 mA and100 mA 460 mV IL = 500 mA, TA = 25°C 290 380 mV IL = 500 mA 470 mV IL = 1 A, TA = 25°C 310 390 mV IL = 1 A 480 mV GND PIN CURRENT, V 6 IN = VOUT (NOMINAL) IL = 10 µA 4.3 mA IL = 1 mA 4.4 7 mA IL = 100 mA 7 13 mA IL = 500 mA 16 25 mA IL = 1 A 32 50 mA OUTPUT NOISE3, 7 IL = 1 A, frequency = 10 Hz, CSET = 0.47 µF, VOUT = 3.3 287 nV/√Hz V IL = 1 A, frequency = 10 Hz, CSET = 4.7 µF, 1.3 V ≤ VOUT 36 nV/√Hz ≤ 15 V IL = 1 A, frequency = 10 kHz, CSET = 0.47 µF, 1.3 V ≤ 3 nV/√Hz VOUT ≤ 15 V IL = 1 A, frequency = 10 kHz, CSET = 0.47 µF, 0.2 V ≤ 9 nV/√Hz VOUT < 1.3 V
analog.com Rev. 0 | 3 of 36
Document Outline Features Applications Typical Application General Description Specifications Electrical Characteristics Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Applications Information Output Voltage Output Sensing and Stability Stability and Output Capacitance High Vibration Environments Stability and Input Capacitance PSRR and Input Capacitance Filtering High-Frequency Spikes Output Noise SET Pin (Bypass) Capacitance: Noise, PSRR, Transient Response, and Soft-Start Fast Startup EN/UV Programmable Power Good Externally Programmable Current Limit Output Overshoot Recovery Direct Paralleling for Higher Current PCB Layout Considerations High-Efficiency Linear Regulator: Voltage Input-to-Output Control (VIOC) Typical VIOC Application Thermal Considerations Calculating Junction Temperature Overload Recovery Protection Features Typical Applications Related Products Outline Dimensions Ordering Guide Evaluation Boards
LT3041 SPECIFICATIONS ELECTRICAL CHARACTERISTICS
TJ = −40°C to +125°C for the minimum and maximum values, TA = 25°C for the typical values, output capacitance (COUT) = two parallel 10 μF ceramic capacitors, and SET capacitance (CSET) = 4.7 μF, unless otherwise noted.
Table 1. Electrical Characteristics Parameter Test Conditions/Comments Min Typ Max Unit
INPUT VOLTAGE RANGE 2.2 20 V MINIMUM IN PIN VOLTAGE1 Input-voltage (VIN) undervoltage lockout (UVLO) rising 2 2.2 V VIN UVLO hysteresis 80 mV OUTPUT VOLTAGE RANGE VIN > output voltage (VOUT) 0.2 15 V SET PIN CURRENT (ISET) VIN = 2.2 V, IL = 1 mA, VOUT = 1.3 V, TA = 25°C 99.5 100 100.5 µA 2.2 V < VIN < 20 V, 0.2 V < VOUT < 15 V, 1 mA < IL < 1 A2 99 100 101 µA FAST STARTUP ISET PGFB voltage (VPGFB) = 289 mV, VIN = 2.8 V, SET 10 mA voltage (VSET) = 1.3 V OUTPUT OFFSET VOLTAGE, VOS (VOUT – VSET)3 VIN = 2.2 V, IL = 1 mA, VOUT = 1.3 V, TA = 25°C –1 +1 mV 2.2 V < VIN < 20 V, 0.2 V < VOUT < 15 V, 1 mA < IL < 1 A2 –2 +2 mV LINE REGULATION ΔISET VIN = 2.2 V to 20 V, IL = 1 mA, VOUT = 1.3 V 0.1 ±12 nA/V ΔVOS VIN = 2.2 V to 20 V, IL = 1 mA, VOUT = 1.3 V3 1.5 ±30 µV/V LOAD REGULATION ΔISET IL = 1 mA to 1 A, VIN = 2.2 V, VOUT = 1.3 V 3 nA ΔVOS IL = 1 mA to 1 A, VIN = 2.2 V, VOUT = 1.3 V3 0.1 0.8 mV CHANGE IN I 4 SET WITH VSET VSET = 1.3 V to 15 V, VIN = 20 V, IL = 1 mA 140 500 nA VSET = 0.2 V to 0.75 V, VIN = 20 V, IL = 1 mA 10 200 nA CHANGE IN V 4 OS WITH VSET VSET = 1.3 V to 15 V, VIN = 20 V, IL = 1 mA3 0.06 0.6 mV VSET = 0.2 V to 0.75 V, VIN = 20 V, IL = 1 mA3 0.004 0.2 mV ERROR-AMPLIFIER SWITCHOVER POINT VIN = 2.2 V, IL = 1 mA, VSET rising 946 mV PNP to NPN Input-Pair Switchover VIN = 2.2 V, IL = 1 mA, VSET falling 922 mV Hysteresis 24 mV DROPOUT VOLTAGE5 IL = 1 mA and 100 mA, TA = 25°C 290 370 mV IL = 1 mA and100 mA 460 mV IL = 500 mA, TA = 25°C 290 380 mV IL = 500 mA 470 mV IL = 1 A, TA = 25°C 310 390 mV IL = 1 A 480 mV GND PIN CURRENT, V 6 IN = VOUT (NOMINAL) IL = 10 µA 4.3 mA IL = 1 mA 4.4 7 mA IL = 100 mA 7 13 mA IL = 500 mA 16 25 mA IL = 1 A 32 50 mA OUTPUT NOISE3, 7 IL = 1 A, frequency = 10 Hz, CSET = 0.47 µF, VOUT = 3.3 287 nV/√Hz V IL = 1 A, frequency = 10 Hz, CSET = 4.7 µF, 1.3 V ≤ VOUT 36 nV/√Hz ≤ 15 V IL = 1 A, frequency = 10 kHz, CSET = 0.47 µF, 1.3 V ≤ 3 nV/√Hz VOUT ≤ 15 V IL = 1 A, frequency = 10 kHz, CSET = 0.47 µF, 0.2 V ≤ 9 nV/√Hz VOUT < 1.3 V
analog.com Rev. 0 | 3 of 36
Document Outline Features Applications Typical Application General Description Specifications Electrical Characteristics Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Applications Information Output Voltage Output Sensing and Stability Stability and Output Capacitance High Vibration Environments Stability and Input Capacitance PSRR and Input Capacitance Filtering High-Frequency Spikes Output Noise SET Pin (Bypass) Capacitance: Noise, PSRR, Transient Response, and Soft-Start Fast Startup EN/UV Programmable Power Good Externally Programmable Current Limit Output Overshoot Recovery Direct Paralleling for Higher Current PCB Layout Considerations High-Efficiency Linear Regulator: Voltage Input-to-Output Control (VIOC) Typical VIOC Application Thermal Considerations Calculating Junction Temperature Overload Recovery Protection Features Typical Applications Related Products Outline Dimensions Ordering Guide Evaluation Boards