Datasheet LTC3388-1, LTC3388-3 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 20V High Efficiency Nanopower Step-Down Regulator |
| 页数 / 页 | 22 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency vs ILOAD, L = 22µH. … |
| 文件格式/大小 | PDF / 381 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency vs ILOAD, L = 22µH. Efficiency vs ILOAD, L = 100µH. (LTC3388-1)
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LTC3388-1/LTC3388-3
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs ILOAD, L = 22µH Efficiency vs ILOAD, L = 100µH (LTC3388-1) (LTC3388-1)
100 100 VIN = 3.0V VIN = 3.0V 90 90 80 80 70 70 60 60 50 50 40 40 EFFICIENCY (%) EFFICIENCY (%) 30 30 V 20 OUT = 2.5V VOUT = 2.5V V 20 OUT = 1.8V VOUT = 1.8V 10 VOUT = 1.5V 10 VOUT = 1.5V VOUT = 1.2V VOUT = 1.2V 0 0 1µ 10µ 100µ 1m 10m 1µ 10µ 100µ 1m 10m LOAD CURRENT (A) LOAD CURRENT (A) 338813 G22 338813 G23
Efficiency vs VIN for ILOAD = 50mA, Efficiency vs VIN for ILOAD = 50mA, L = 22µH (LTC3388-1) L = 100µH (LTC3388-1)
100 100 VOUT = 2.5V VOUT = 2.5V VOUT = 1.8V VOUT = 1.8V 95 VOUT = 1.5V 95 VOUT = 1.5V VOUT = 1.2V VOUT = 1.2V 90 90 85 85 EFFICIENCY (%) 80 EFFICIENCY (%) 80 75 75 70 70 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 VIN (V) VIN (V) 338813 G24 338813 G25
Efficiency vs VIN for VOUT = 1.8V, Efficiency vs VIN for VOUT = 1.8V, L = 22µH (LTC3388-1) L = 100µH (LTC3388-1)
100 100 90 90 80 80 70 70 60 60 EFFICIENCY (%) EFFICIENCY (%) 50 ILOAD = 50mA 50 ILOAD = 50mA ILOAD = 100µA ILOAD = 100µA I I 40 LOAD = 50µA LOAD = 50µA I 40 LOAD = 30µA ILOAD = 30µA ILOAD = 10µA ILOAD = 10µA 30 30 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 VIN (V) VIN (V) 338813 G26 338813 G27 338813fa For more information www.linear.com/LTC3388 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs ILOAD, L = 22µH Efficiency vs ILOAD, L = 100µH (LTC3388-1) (LTC3388-1)
100 100 VIN = 3.0V VIN = 3.0V 90 90 80 80 70 70 60 60 50 50 40 40 EFFICIENCY (%) EFFICIENCY (%) 30 30 V 20 OUT = 2.5V VOUT = 2.5V V 20 OUT = 1.8V VOUT = 1.8V 10 VOUT = 1.5V 10 VOUT = 1.5V VOUT = 1.2V VOUT = 1.2V 0 0 1µ 10µ 100µ 1m 10m 1µ 10µ 100µ 1m 10m LOAD CURRENT (A) LOAD CURRENT (A) 338813 G22 338813 G23
Efficiency vs VIN for ILOAD = 50mA, Efficiency vs VIN for ILOAD = 50mA, L = 22µH (LTC3388-1) L = 100µH (LTC3388-1)
100 100 VOUT = 2.5V VOUT = 2.5V VOUT = 1.8V VOUT = 1.8V 95 VOUT = 1.5V 95 VOUT = 1.5V VOUT = 1.2V VOUT = 1.2V 90 90 85 85 EFFICIENCY (%) 80 EFFICIENCY (%) 80 75 75 70 70 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 VIN (V) VIN (V) 338813 G24 338813 G25
Efficiency vs VIN for VOUT = 1.8V, Efficiency vs VIN for VOUT = 1.8V, L = 22µH (LTC3388-1) L = 100µH (LTC3388-1)
100 100 90 90 80 80 70 70 60 60 EFFICIENCY (%) EFFICIENCY (%) 50 ILOAD = 50mA 50 ILOAD = 50mA ILOAD = 100µA ILOAD = 100µA I I 40 LOAD = 50µA LOAD = 50µA I 40 LOAD = 30µA ILOAD = 30µA ILOAD = 10µA ILOAD = 10µA 30 30 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 VIN (V) VIN (V) 338813 G26 338813 G27 338813fa For more information www.linear.com/LTC3388 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Related Parts