Datasheet LT1585A, LT1585A-3.3 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 5A Low Dropout Fast Response Positive Regulators Adjustable and Fixed |
| 页数 / 页 | 12 / 3 — ELECTRICAL CHARACTERISTICS The |
| 文件格式/大小 | PDF / 169 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS The
该数据表的模型线
文件文字版本
LT1585A/LT1585A-3.3
ELECTRICAL CHARACTERISTICS The
●
denotes specificatons which apply over the specified temperature range, otherwise specifications are at TA = 25
°
C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Ripple Rejection LT1585A f = 120Hz, COUT = 100µF Tant., (VIN – VOUT) = 3V, IOUT = 5A LT1585A-3.3 f = 120Hz, COUT = 100µF Tant., VIN = 6.3V, IOUT = 5A ● 60 72 dB Thermal LT1585A TA = 25°C, 30ms Pulse Regulation LT1585A-3.3 TA = 25°C, 30ms Pulse 0.004 0.02 %/W Temperature Stability ● 0.5 % Long-Term Stability TA = 125°C, 1000 Hrs. 0.03 1.0 % RMS Output Noise TA = 25°C, 10Hz ≤ f ≤ 10kHz 0.003 % (% of VOUT) Thermal Resistance LT1585A T Package: Control Circuitry/Power Transistor 0.7/3.0 °C/W Junction to Case
Note 1:
See thermal regulation specifications for changes in output voltage
Note 3:
IFULL LOAD is defined as the maximum value of output load current due to heating effects. Load and line regulation are measured at a constant as a function of input-to-output voltage. IFULL LOAD is equal to 5A for the junction temperature by low duty cycle pulse testing. LT1585A/LT1585A-3.3. The LT1585A has constant current limit with
Note 2:
Line and load regulation are guaranteed up to the maximum power changes in input-to-output voltage. dissipation 28.8W for the LT1585A in T package. Power dissipation is determined by input/output differential and the output current. Guaranteed maximum output power will not be available over the full input/output voltage range.
W U TYPICAL PERFORMANCE CHARACTERISTICS LT1585A Dropout Voltage LT1585A Short-Circuit Current LT1585A Load Regulation vs Output Current vs Temperature vs Temperature
6.0 0.10 1.5 ∆I = 5A GUARANTEED 1.4 TEST POINTS 0.05 1.3 T = –5°C 5.5 1.2 0 1.1 1.0 T = 125°C 5.0 –0.05 T = 25°C 0.9 –0.10 0.8 DROPOUT VOLTAGE (V) 4.5 0.7 SHORT-CIRCUIT CURRENT (A) OUTPUT VOLTAGE DEVIATION (%) –0.15 0.6 –0.20 0.5 4.0–75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 0 1 2 3 4 5 TEMPERATURE ( TEMPERATURE ( °C) OUTPUT CURRENT (A) °C) LT1585A • TPC03 LT1585A • TPC01 LT1585A • TPC02 1585afa 3
ELECTRICAL CHARACTERISTICS The
●
denotes specificatons which apply over the specified temperature range, otherwise specifications are at TA = 25
°
C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Ripple Rejection LT1585A f = 120Hz, COUT = 100µF Tant., (VIN – VOUT) = 3V, IOUT = 5A LT1585A-3.3 f = 120Hz, COUT = 100µF Tant., VIN = 6.3V, IOUT = 5A ● 60 72 dB Thermal LT1585A TA = 25°C, 30ms Pulse Regulation LT1585A-3.3 TA = 25°C, 30ms Pulse 0.004 0.02 %/W Temperature Stability ● 0.5 % Long-Term Stability TA = 125°C, 1000 Hrs. 0.03 1.0 % RMS Output Noise TA = 25°C, 10Hz ≤ f ≤ 10kHz 0.003 % (% of VOUT) Thermal Resistance LT1585A T Package: Control Circuitry/Power Transistor 0.7/3.0 °C/W Junction to Case
Note 1:
See thermal regulation specifications for changes in output voltage
Note 3:
IFULL LOAD is defined as the maximum value of output load current due to heating effects. Load and line regulation are measured at a constant as a function of input-to-output voltage. IFULL LOAD is equal to 5A for the junction temperature by low duty cycle pulse testing. LT1585A/LT1585A-3.3. The LT1585A has constant current limit with
Note 2:
Line and load regulation are guaranteed up to the maximum power changes in input-to-output voltage. dissipation 28.8W for the LT1585A in T package. Power dissipation is determined by input/output differential and the output current. Guaranteed maximum output power will not be available over the full input/output voltage range.
W U TYPICAL PERFORMANCE CHARACTERISTICS LT1585A Dropout Voltage LT1585A Short-Circuit Current LT1585A Load Regulation vs Output Current vs Temperature vs Temperature
6.0 0.10 1.5 ∆I = 5A GUARANTEED 1.4 TEST POINTS 0.05 1.3 T = –5°C 5.5 1.2 0 1.1 1.0 T = 125°C 5.0 –0.05 T = 25°C 0.9 –0.10 0.8 DROPOUT VOLTAGE (V) 4.5 0.7 SHORT-CIRCUIT CURRENT (A) OUTPUT VOLTAGE DEVIATION (%) –0.15 0.6 –0.20 0.5 4.0–75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 0 1 2 3 4 5 TEMPERATURE ( TEMPERATURE ( °C) OUTPUT CURRENT (A) °C) LT1585A • TPC03 LT1585A • TPC01 LT1585A • TPC02 1585afa 3