Datasheet LT1534 (Analog Devices) - 5
| Fabricante | Analog Devices |
| Descripción | Ultralow Noise 2A Switching Regulators |
| Páginas / Página | 16 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. VC Pin Threshold and Clamp. Voltage … |
| Formato / tamaño de archivo | PDF / 216 Kb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS. VC Pin Threshold and Clamp. Voltage vs Temperature. Load Transient Response
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LT1534/LT1534-1
W U TYPICAL PERFORMANCE CHARACTERISTICS VC Pin Threshold and Clamp Voltage vs Temperature Load Transient Response
1.6 ILOAD 1.4 0.5A/DIV 1.2 VC PIN CLAMP VOLTAGE 1.0 V 0.8 OUT 100mV/DIV PIN VOLTAGE (V) 0.6 CV 0.4 VC PIN THRESHOLD VIN = 3.3V 500µs/DIV 1534 G10 0.2 VOUT = 5V (NODE A) I 0 LOAD = 0.1A TO 0.5A –50 –25 0 25 50 75 100 125 FIGURE 1 CIRCUIT TEMPERATURE (°C) 1534 G09
Typical Output Switch Voltage Percent Change in Oscillator and Current Slew Rates vs Slew Frequency vs Temperature (NPO Setting Resistance (R Cap and Metal Film R) VSL = RCSL)
40 4 2.0 IRISE TA = 25°C 35 1.5 IFALL CURRENT SLEW (A/ 30 V 3 1.0 µs) RISE V 25 FALL 0.5 20 2 0 15 –0.5 µs) VOLTAGE SLEW (V/ 10 1 –1.0 CHANGE IN FREQUENCY (%) 5 –1.5 0 0 –2.0 0 1/20k 1/10k 1/6.7k 1/5k –50 –25 0 25 50 75 100 125 1/R (mmho) TEMPERATURE (°C) 1534 G11 1534 G12
Load Regulation
2.0 FIGURE 1 CIRCUIT 1.5 1.0 (%) 0.5 OUT∆V 0 –0.5 –1.0 –1.5 0 100 200 300 400 500 600 700 LOAD CURRENT (mA) 1534-1 G13 5
W U TYPICAL PERFORMANCE CHARACTERISTICS VC Pin Threshold and Clamp Voltage vs Temperature Load Transient Response
1.6 ILOAD 1.4 0.5A/DIV 1.2 VC PIN CLAMP VOLTAGE 1.0 V 0.8 OUT 100mV/DIV PIN VOLTAGE (V) 0.6 CV 0.4 VC PIN THRESHOLD VIN = 3.3V 500µs/DIV 1534 G10 0.2 VOUT = 5V (NODE A) I 0 LOAD = 0.1A TO 0.5A –50 –25 0 25 50 75 100 125 FIGURE 1 CIRCUIT TEMPERATURE (°C) 1534 G09
Typical Output Switch Voltage Percent Change in Oscillator and Current Slew Rates vs Slew Frequency vs Temperature (NPO Setting Resistance (R Cap and Metal Film R) VSL = RCSL)
40 4 2.0 IRISE TA = 25°C 35 1.5 IFALL CURRENT SLEW (A/ 30 V 3 1.0 µs) RISE V 25 FALL 0.5 20 2 0 15 –0.5 µs) VOLTAGE SLEW (V/ 10 1 –1.0 CHANGE IN FREQUENCY (%) 5 –1.5 0 0 –2.0 0 1/20k 1/10k 1/6.7k 1/5k –50 –25 0 25 50 75 100 125 1/R (mmho) TEMPERATURE (°C) 1534 G11 1534 G12
Load Regulation
2.0 FIGURE 1 CIRCUIT 1.5 1.0 (%) 0.5 OUT∆V 0 –0.5 –1.0 –1.5 0 100 200 300 400 500 600 700 LOAD CURRENT (mA) 1534-1 G13 5