Datasheet LT3504 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | Quad 40V/1A Step-Down Switching Regulator with 100% Duty Cycle Operation |
| 页数 / 页 | 24 / 5 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 498 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Input Voltage Undervoltage. Input Quiescent Current
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LT3504
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Input Voltage Undervoltage Input Quiescent Current Lockout VIN Pin Current vs Input Voltage
3.6 10 40 3.4 9 35 8 3.2 30 7 3.0 6 25 2.8 (µA) 5 20 UVLO (V) I VIN 2.6 4 15 3 2.4 10 2 2.2 INPUT QUIESCENT CURRENT (mA) 1 5 ALL SS = 2V ALL SS = 0V 2.0 0 0 –50 –25 0 25 50 75 100 125 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 5 10 15 20 25 30 35 40 45 TEMPERATURE (°C) VEN/UVLO (V) INPUT VOLTAGE (V) 3504 G10 3504 G11 3504 G12
Switching Frequency RUN/SS vs FB Voltage Soft Start Current vs Temperature
900 0 1.20 800 –0.2 1.15 700 –0.4 1.10 –0.6 600 –0.8 1.05 500 (µA) TAGE (mV) –1.0 1.00 400 I RUN/SS –1.2 0.95 FB VOL 300 –1.4 FREQUENCY (MHz) 200 0.90 –1.6 100 –1.8 0.85 0 –2.0 0.80 0 200 400 600 800 1000 1200 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 150 RUN/SS VOLTAGE (mV) TEMPERATURE (°C) TEMPERATURE (°C) 3504 G13 3504 G14 3504 G15
Switch Voltage Drop, Switch Voltage Drop ISW = 500mA Switch and Diode Current Limit
600 320 2.0 1.9 500 300 1.8 1.7 400 280 1.6 TAGE DROP (mV) 300 TAGE DROP (mV) 260 1.5 1.4 200 240 CURRENT LIMIT (A) 1.3 SWITCH VOL SWITCH VOL 1.2 100 220 1.1 0 200 1.0 0 200 400 600 800 1000 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 SWITCH CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3504 G16 3504 G17 3504 G18 3504fa For more information www.linear.com/LT3504 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Input Voltage Undervoltage Input Quiescent Current Lockout VIN Pin Current vs Input Voltage
3.6 10 40 3.4 9 35 8 3.2 30 7 3.0 6 25 2.8 (µA) 5 20 UVLO (V) I VIN 2.6 4 15 3 2.4 10 2 2.2 INPUT QUIESCENT CURRENT (mA) 1 5 ALL SS = 2V ALL SS = 0V 2.0 0 0 –50 –25 0 25 50 75 100 125 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 5 10 15 20 25 30 35 40 45 TEMPERATURE (°C) VEN/UVLO (V) INPUT VOLTAGE (V) 3504 G10 3504 G11 3504 G12
Switching Frequency RUN/SS vs FB Voltage Soft Start Current vs Temperature
900 0 1.20 800 –0.2 1.15 700 –0.4 1.10 –0.6 600 –0.8 1.05 500 (µA) TAGE (mV) –1.0 1.00 400 I RUN/SS –1.2 0.95 FB VOL 300 –1.4 FREQUENCY (MHz) 200 0.90 –1.6 100 –1.8 0.85 0 –2.0 0.80 0 200 400 600 800 1000 1200 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 150 RUN/SS VOLTAGE (mV) TEMPERATURE (°C) TEMPERATURE (°C) 3504 G13 3504 G14 3504 G15
Switch Voltage Drop, Switch Voltage Drop ISW = 500mA Switch and Diode Current Limit
600 320 2.0 1.9 500 300 1.8 1.7 400 280 1.6 TAGE DROP (mV) 300 TAGE DROP (mV) 260 1.5 1.4 200 240 CURRENT LIMIT (A) 1.3 SWITCH VOL SWITCH VOL 1.2 100 220 1.1 0 200 1.0 0 200 400 600 800 1000 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 SWITCH CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3504 G16 3504 G17 3504 G18 3504fa For more information www.linear.com/LT3504 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts