Datasheet LT3695 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 1A Fault Tolerant Micropower Step-Down Regulator |
| 页数 / 页 | 30 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 508 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Frequency Foldback: LT3695-5. Minimum Switch On-Time
该数据表的模型线
- LT3695EMSE#PBF LT3695EMSE#TRPBF LT3695EMSE-3.3#PBF LT3695EMSE-3.3#TRPBF LT3695EMSE-5#PBF LT3695EMSE-5#TRPBF LT3695HMSE#PBF LT3695HMSE#TRPBF LT3695HMSE-3.3#PBF LT3695HMSE-3.3#TRPBF LT3695HMSE-5#PBF LT3695HMSE-5#TRPBF LT3695IMSE#PBF LT3695IMSE#TRPBF LT3695IMSE-3.3#PBF LT3695IMSE-3.3#TRPBF LT3695IMSE-5#PBF LT3695IMSE-5#TRPBF
文件文字版本
LT3695 Series
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Frequency Foldback: LT3695-5 Minimum Switch On-Time Soft-Start
1200 120 2.0 RRT = 29.4k I SYNC < 0.3V OUT = 1A 1.8 1000 100 1.6 1.4 800 80 1.2 600 60 1.0 0.8 400 40 FREQUENCY (kHz) 0.6 SWITCH CURRENT LIMIT (A) 0.4 200 MINIMUM SWITCH ON TIME (ns) 20 0.2 0 0 0 0 1 2 3 4 5 –50 –25 0 25 50 75 100 125 150 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 OUTPUT VOLTAGE (V) TEMPERATURE (°C) RUN/SS PIN VOLTAGE (V) 3695 G20 3695 G21 3695 G19
Error Amplifi er Output Current: RUN/SS Pin Current Boost Diode Forward Voltage LT3695
12 1.4 60 50 10 1.2 40 30 1.0 8 (V) 20 FV 10 0.8 6 0 0.6 –10 4 PIN CURRENT (μA) C –20 BOOST DIODE 0.4 V RUN/SS PIN CURRENT (μA) –30 2 –40 0.2 –50 0 0 –60 0 5 10 15 20 25 30 35 40 0 0.25 0.5 0.75 1 –200 –100 0 100 200 RUN/SS PIN VOLTAGE (V) BOOST DIODE CURRENT (A) FB PIN ERROR VOLTAGE (mV) 3695 G22 3695 G23 3659 G24
Error Amplifi er Output Current: Error Amplifi er Output Current: LT3695-3.3 LT3695-5 Minimum Input Voltage
60 60 5.0 VOUT = 3.3V 50 50 L = 10μH 40 40 4.5 f = 800kHz 30 30 (μA) 20 (μA) 20 4.0 10 10 TAGE (V) 0 0 3.5 CURRENT CURRENT –10 –10 PIN PIN –20 –20 3.0 C C INPUT VOL V V –30 –30 2.5 –40 –40 –50 –50 –60 –60 2.0 –750 –500 –250 0 250 500 750 –900 –600 –300 0 300 600 900 1 10 100 1000 OUTPUT ERROR VOLTAGE (mV) OUTPUT ERROR VOLTAGE (mV) LOAD CURRENT (mA) 3695 G27 3695 G25 3695 G26 3695fa 7
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Frequency Foldback: LT3695-5 Minimum Switch On-Time Soft-Start
1200 120 2.0 RRT = 29.4k I SYNC < 0.3V OUT = 1A 1.8 1000 100 1.6 1.4 800 80 1.2 600 60 1.0 0.8 400 40 FREQUENCY (kHz) 0.6 SWITCH CURRENT LIMIT (A) 0.4 200 MINIMUM SWITCH ON TIME (ns) 20 0.2 0 0 0 0 1 2 3 4 5 –50 –25 0 25 50 75 100 125 150 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 OUTPUT VOLTAGE (V) TEMPERATURE (°C) RUN/SS PIN VOLTAGE (V) 3695 G20 3695 G21 3695 G19
Error Amplifi er Output Current: RUN/SS Pin Current Boost Diode Forward Voltage LT3695
12 1.4 60 50 10 1.2 40 30 1.0 8 (V) 20 FV 10 0.8 6 0 0.6 –10 4 PIN CURRENT (μA) C –20 BOOST DIODE 0.4 V RUN/SS PIN CURRENT (μA) –30 2 –40 0.2 –50 0 0 –60 0 5 10 15 20 25 30 35 40 0 0.25 0.5 0.75 1 –200 –100 0 100 200 RUN/SS PIN VOLTAGE (V) BOOST DIODE CURRENT (A) FB PIN ERROR VOLTAGE (mV) 3695 G22 3695 G23 3659 G24
Error Amplifi er Output Current: Error Amplifi er Output Current: LT3695-3.3 LT3695-5 Minimum Input Voltage
60 60 5.0 VOUT = 3.3V 50 50 L = 10μH 40 40 4.5 f = 800kHz 30 30 (μA) 20 (μA) 20 4.0 10 10 TAGE (V) 0 0 3.5 CURRENT CURRENT –10 –10 PIN PIN –20 –20 3.0 C C INPUT VOL V V –30 –30 2.5 –40 –40 –50 –50 –60 –60 2.0 –750 –500 –250 0 250 500 750 –900 –600 –300 0 300 600 900 1 10 100 1000 OUTPUT ERROR VOLTAGE (mV) OUTPUT ERROR VOLTAGE (mV) LOAD CURRENT (mA) 3695 G27 3695 G25 3695 G26 3695fa 7