Datasheet LTC3026-1 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 1.5A Low Input Voltage VLDO Linear Regulator |
| 页数 / 页 | 16 / 4 — TYPICAL PERFORMANCE CHARACTERISTICS. BIAS Supply Current. IN Supply … |
| 文件格式/大小 | PDF / 181 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. BIAS Supply Current. IN Supply Current. ADJ Voltage vs Temperature. IN Shutdown Current
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LTC3026-1
TYPICAL PERFORMANCE CHARACTERISTICS BIAS Supply Current IN Supply Current ADJ Voltage vs Temperature
200 200 404 403 150 150 402 401 1mA (μA) 100 (μA) 100 400 I BIAS I IN 1.5A 399 VBIAS = 5V VBST V = 5V BIAS = 5V 50 125°C 50 125°C ADJUST VOLTAGE (mV) 398 85°C 85°C VBIAS = 5V 25°C 25°C 397 VIN = 1.5V –40°C –40°C VOUT =1.2V 0 0 396 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 –25 0 25 50 75 100 125 VIN (V) VIN (V) TEMPERATURE (°C) 30261 G01 30261 G02 30261 G03
IN Shutdown Current Dropout Voltage vs Input Voltage VIN Ripple Rejection
5.0 200 60 VFB = 0.38V 4.5 180 10kHz IOUT =1.5A 50 4.0 160 1MHz 3.5 140 40 3.0 120 100kHz 2.5 100 30 2.0 80 3.5V DROPOUT (mV) 20 INPUT CURRENT (μA) 1.5 60 125°C RIPPLE REJECTION (dB) VBIAS = 5V 1.0 40 85°C 10 VOUT =1.2V 0.5 2.5V 25°C I 20 OUT = 800mA –40°C C 1.2V OUT = 10μF 0 0 0 –50 –25 0 25 50 75 100 125 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 TEMPERATURE (°C) VIN (V) VIN (V) 30261 G04 30261 G05 30261 G06
VIN Ripple Rejection Shutdown Threshold Output Current Limit
70 1200 5.0 VOUT = 0V T 60 4.5 A = 25°C RISE RISE 4.0 50 FALL 900 FALL RISE 3.5 40 FALL (A) 3.0 30 I OUT THRESHOLD (mV) 2.5 600 20 V CURRENT LIMIT RIPPLE REJECTION (dB) BIAS = 5V SHDN V V IN = 1.5V 2.0 V 125°C 10 OUT =1.2V THERMAL LIMIT IOUT = 800mA 25°C 1.5 COUT = 10μF –40°C 0 300 1.0 100 1000 10000 100000 1000000 1E+07 1 2 3 4 5 6 1.0 1.5 2.0 2.5 3.0 3.5 FREQUENCY (Hz) VIN (V) VIN (V) 30261 G07 30261 G08 30261 G09 30261f 4
TYPICAL PERFORMANCE CHARACTERISTICS BIAS Supply Current IN Supply Current ADJ Voltage vs Temperature
200 200 404 403 150 150 402 401 1mA (μA) 100 (μA) 100 400 I BIAS I IN 1.5A 399 VBIAS = 5V VBST V = 5V BIAS = 5V 50 125°C 50 125°C ADJUST VOLTAGE (mV) 398 85°C 85°C VBIAS = 5V 25°C 25°C 397 VIN = 1.5V –40°C –40°C VOUT =1.2V 0 0 396 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 –25 0 25 50 75 100 125 VIN (V) VIN (V) TEMPERATURE (°C) 30261 G01 30261 G02 30261 G03
IN Shutdown Current Dropout Voltage vs Input Voltage VIN Ripple Rejection
5.0 200 60 VFB = 0.38V 4.5 180 10kHz IOUT =1.5A 50 4.0 160 1MHz 3.5 140 40 3.0 120 100kHz 2.5 100 30 2.0 80 3.5V DROPOUT (mV) 20 INPUT CURRENT (μA) 1.5 60 125°C RIPPLE REJECTION (dB) VBIAS = 5V 1.0 40 85°C 10 VOUT =1.2V 0.5 2.5V 25°C I 20 OUT = 800mA –40°C C 1.2V OUT = 10μF 0 0 0 –50 –25 0 25 50 75 100 125 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 TEMPERATURE (°C) VIN (V) VIN (V) 30261 G04 30261 G05 30261 G06
VIN Ripple Rejection Shutdown Threshold Output Current Limit
70 1200 5.0 VOUT = 0V T 60 4.5 A = 25°C RISE RISE 4.0 50 FALL 900 FALL RISE 3.5 40 FALL (A) 3.0 30 I OUT THRESHOLD (mV) 2.5 600 20 V CURRENT LIMIT RIPPLE REJECTION (dB) BIAS = 5V SHDN V V IN = 1.5V 2.0 V 125°C 10 OUT =1.2V THERMAL LIMIT IOUT = 800mA 25°C 1.5 COUT = 10μF –40°C 0 300 1.0 100 1000 10000 100000 1000000 1E+07 1 2 3 4 5 6 1.0 1.5 2.0 2.5 3.0 3.5 FREQUENCY (Hz) VIN (V) VIN (V) 30261 G07 30261 G08 30261 G09 30261f 4