Datasheet LT3435 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | High Voltage 3A, 500kHz Step-Down Switching Regulator with 100µA Quiescent Current |
| 页数 / 页 | 24 / 4 — TYPICAL PERFOR A CE CHARACTERISTICS. FB Voltage. Oscillator Frequency. … |
| 文件格式/大小 | PDF / 327 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS. FB Voltage. Oscillator Frequency. SHDN Threshold. SHDN Pin Current. Shutdown Supply Current
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LT3435
W U TYPICAL PERFOR A CE CHARACTERISTICS FB Voltage Oscillator Frequency SHDN Threshold
1.30 550 1.40 1.29 540 1.35 1.28 530 1.30 1.27 520 1.26 510 1.25 1.25 500 1.20 VOLTAGE (V) 1.24 490 VOLTAGE (V) 0.15 1.23 FREQUENCY (kHz) 480 1.10 1.22 470 1.05 1.21 460 1.20 450 1.00 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3435 G01 3435 G02 3435 G03
SHDN Pin Current Shutdown Supply Current Sleep Mode Supply Current
5.5 25 200 TJ = 25°C 5.0 180 4.5 20 160 VBIAS = 0V VIN = 60V 4.0 140 µA) 3.5 µA) 15 µA) 120 3.0 100 2.5 10 80 CURRENT ( CURRENT ( CURRENT ( 2.0 60 VBIAS = 5V 1.5 5 40 V 1.0 IN = 42V VIN = 12V 20 0 0 0 0 10 20 30 40 50 60 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 SHDN VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3435 G04 3435 G05 3435 G06
Bias Sleep Current PGFB Threshold PG Sink Current
200 1.20 250 180 1.18 160 1.16 200 140 1.14 µA) 120 1.12 µA) 150 100 1.10 80 1.08 100 CURRENT ( VOLTAGE (V) CURRENT ( 60 1.06 40 1.04 50 20 1.02 0 1.00 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3435 G07 3435 G08 3435 G09 3435fa 4
W U TYPICAL PERFOR A CE CHARACTERISTICS FB Voltage Oscillator Frequency SHDN Threshold
1.30 550 1.40 1.29 540 1.35 1.28 530 1.30 1.27 520 1.26 510 1.25 1.25 500 1.20 VOLTAGE (V) 1.24 490 VOLTAGE (V) 0.15 1.23 FREQUENCY (kHz) 480 1.10 1.22 470 1.05 1.21 460 1.20 450 1.00 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3435 G01 3435 G02 3435 G03
SHDN Pin Current Shutdown Supply Current Sleep Mode Supply Current
5.5 25 200 TJ = 25°C 5.0 180 4.5 20 160 VBIAS = 0V VIN = 60V 4.0 140 µA) 3.5 µA) 15 µA) 120 3.0 100 2.5 10 80 CURRENT ( CURRENT ( CURRENT ( 2.0 60 VBIAS = 5V 1.5 5 40 V 1.0 IN = 42V VIN = 12V 20 0 0 0 0 10 20 30 40 50 60 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 SHDN VOLTAGE (V) TEMPERATURE (°C) TEMPERATURE (°C) 3435 G04 3435 G05 3435 G06
Bias Sleep Current PGFB Threshold PG Sink Current
200 1.20 250 180 1.18 160 1.16 200 140 1.14 µA) 120 1.12 µA) 150 100 1.10 80 1.08 100 CURRENT ( VOLTAGE (V) CURRENT ( 60 1.06 40 1.04 50 20 1.02 0 1.00 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3435 G07 3435 G08 3435 G09 3435fa 4