Datasheet LTC3602 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 2.5A, 10V, Monolithic Synchronous Step-Down Regulator |
| 页数 / 页 | 20 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. Minimum Peak Inductor Current. … |
| 文件格式/大小 | PDF / 230 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Minimum Peak Inductor Current. Maximum Peak Inductor Current
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LTC3602
TYPICAL PERFORMANCE CHARACTERISTICS Minimum Peak Inductor Current Maximum Peak Inductor Current Effi ciency vs Load Current, vs Burst Clamp Voltage vs Duty Cycle Burst Mode Operation
3.0 5 100 FIGURE 6 CIRCUIT V 2.5 IN = 5V 95 4 VIN = 9V 2.0 90 3 1.5 85 2 1.0 EFFICIENCY (%) 80 PEAK INDUCTOR CURRENT (A) 0.5 PEAK INDUCTOR CURRENT (A) 1 75 0 0 70 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 10 20 30 40 50 60 70 80 90 100 0.01 0.1 1 10 BURST CLAMP VOLTAGE (V) DUTY CYCLE (%) LOAD CURRENT (A) 3602 G12 3602 G13 3602 G14
Effi ciency vs Load Current, Forced Continuous Effi ciency vs Input Voltage Effi ciency vs Frequency
100 100 100 FIGURE 6 CIRCUIT FIGURE 6 CIRCUIT FIGURE 6 CIRCUIT 90 98 VIN = 7V 95 ILOAD = 1A ILOAD = 1A 80 V 96 IN = 5V 70 90 ILOAD = 2.5A 94 2.2μH 60 50 85 92 1μH 40 VIN = 9V 90 EFFICIENCY (%) EFFICIENCY (%) 80 EFFICIENCY (%) 30 88 4.7μH 20 75 86 10 0 70 84 0.01 0.1 1 10 4 5 6 7 8 9 10 0 500 1000 1500 2000 2500 3000 LOAD CURRENT (A) INPUT VOLTAGE (V) FREQUENCY (kHz) 3602 G15 3602 G16 3602 G17
5V LDO Output Voltage TRACK/SS Current Load Regulation vs Temperature vs Temperature
0.10 5.10 1.40 FIGURE 6 CIRCUIT V 5.08 IN = 7V 1.35 5.06 5.04 0.00 1.30 (%) 5.02 OUT /V 5.00 1.25 OUT 4.98 ΔV –0.10 1.20 4.96 LDO OUTPUT VOLTAGE (V) TRACK/SS CURRENT (μA) 4.94 1.15 4.92 –0.20 4.90 1.10 0 0.5 1 1.5 2 2.5 3 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 LOAD CURRENT (A) TEMPERATURE (oC) TEMPERATURE (oC) 3602 G18 3602 G19 3602 G20 3602fb 5
TYPICAL PERFORMANCE CHARACTERISTICS Minimum Peak Inductor Current Maximum Peak Inductor Current Effi ciency vs Load Current, vs Burst Clamp Voltage vs Duty Cycle Burst Mode Operation
3.0 5 100 FIGURE 6 CIRCUIT V 2.5 IN = 5V 95 4 VIN = 9V 2.0 90 3 1.5 85 2 1.0 EFFICIENCY (%) 80 PEAK INDUCTOR CURRENT (A) 0.5 PEAK INDUCTOR CURRENT (A) 1 75 0 0 70 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 10 20 30 40 50 60 70 80 90 100 0.01 0.1 1 10 BURST CLAMP VOLTAGE (V) DUTY CYCLE (%) LOAD CURRENT (A) 3602 G12 3602 G13 3602 G14
Effi ciency vs Load Current, Forced Continuous Effi ciency vs Input Voltage Effi ciency vs Frequency
100 100 100 FIGURE 6 CIRCUIT FIGURE 6 CIRCUIT FIGURE 6 CIRCUIT 90 98 VIN = 7V 95 ILOAD = 1A ILOAD = 1A 80 V 96 IN = 5V 70 90 ILOAD = 2.5A 94 2.2μH 60 50 85 92 1μH 40 VIN = 9V 90 EFFICIENCY (%) EFFICIENCY (%) 80 EFFICIENCY (%) 30 88 4.7μH 20 75 86 10 0 70 84 0.01 0.1 1 10 4 5 6 7 8 9 10 0 500 1000 1500 2000 2500 3000 LOAD CURRENT (A) INPUT VOLTAGE (V) FREQUENCY (kHz) 3602 G15 3602 G16 3602 G17
5V LDO Output Voltage TRACK/SS Current Load Regulation vs Temperature vs Temperature
0.10 5.10 1.40 FIGURE 6 CIRCUIT V 5.08 IN = 7V 1.35 5.06 5.04 0.00 1.30 (%) 5.02 OUT /V 5.00 1.25 OUT 4.98 ΔV –0.10 1.20 4.96 LDO OUTPUT VOLTAGE (V) TRACK/SS CURRENT (μA) 4.94 1.15 4.92 –0.20 4.90 1.10 0 0.5 1 1.5 2 2.5 3 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 LOAD CURRENT (A) TEMPERATURE (oC) TEMPERATURE (oC) 3602 G18 3602 G19 3602 G20 3602fb 5