Datasheet LTC3854 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | Small Footprint, Wide VIN Range Synchronous Step-Down DC/DC Controller |
| 页数 / 页 | 28 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. Switching Waveforms at High. … |
| 文件格式/大小 | PDF / 547 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Switching Waveforms at High. Switching Waveforms at No Load. Duty Cycle, No Load
该数据表的模型线
- LTC3854EDDB#PBF LTC3854EDDB#TRMPBF LTC3854EDDB#TRMPBF LTC3854EDDB#TRPBF LTC3854EDDB#TRPBF LTC3854EMSE#PBF LTC3854EMSE#PBF LTC3854EMSE#TRPBF LTC3854EMSE#TRPBF LTC3854IDDB#PBF LTC3854IDDB#TRMPBF LTC3854IDDB#TRMPBF LTC3854IDDB#TRPBF LTC3854IDDB#TRPBF LTC3854IMSE#PBF LTC3854IMSE#PBF LTC3854IMSE#TRPBF LTC3854IMSE#TRPBF
文件文字版本
LTC3854
TYPICAL PERFORMANCE CHARACTERISTICS Switching Waveforms at High Switching Waveforms at No Load Duty Cycle, No Load
VOUT = 5V VOUT = 2.5V TG TG BG BG I I L L 1µs/DIV 3854 G06 2µs/DIV 3854 G07
Quiescent Current vs VIN Quiescent Current vs Temperature INTVCC vs Input Voltage
1.17 1.30 5.05 1.16 1.25 5.00 1.15 1.20 1.14 1.15 4.95 (V) 1.13 1.10 V CC 1.12 1.05 INT 4.90 QUIESCENT CURRENT (mA) 1.11 QUIESCENT CURRENT (mA) 1.00 4.85 1.10 0.95 1.09 0.90 4.80 6 11 16 21 26 31 36 –45 –25 –5 15 35 55 75 95 4 9 14 19 24 29 34 39 VIN (V) TEMPERATURE (°C) VIN (V) 3854 G08 3854 G09 3854 G10
Maximum Current Sense Voltage Maximum Current Sense Threshold Maximum Current Sense Threshold vs Feedback Voltage vs Sense Common Mode Voltage vs Duty Cycle (Current Foldback)
60 65 60 58 60 50 56 TAGE (mV) 54 55 40 (mV) 52 (mV) 50 50 30 48 V SENSE(MAX) 45 20 46 V SENSE(MAX) 44 40 10 42 MAXIMUM CURRENT SENSE VOL 40 35 0 0 1 2 3 4 5 6 7 0 20 40 60 80 100 120 0 0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 COMMON MODE VOLTAGE (V) DUTY CYCLE (%) FB (V) 3854 G11 3854 G12 3854 G13 3854fb 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Switching Waveforms at High Switching Waveforms at No Load Duty Cycle, No Load
VOUT = 5V VOUT = 2.5V TG TG BG BG I I L L 1µs/DIV 3854 G06 2µs/DIV 3854 G07
Quiescent Current vs VIN Quiescent Current vs Temperature INTVCC vs Input Voltage
1.17 1.30 5.05 1.16 1.25 5.00 1.15 1.20 1.14 1.15 4.95 (V) 1.13 1.10 V CC 1.12 1.05 INT 4.90 QUIESCENT CURRENT (mA) 1.11 QUIESCENT CURRENT (mA) 1.00 4.85 1.10 0.95 1.09 0.90 4.80 6 11 16 21 26 31 36 –45 –25 –5 15 35 55 75 95 4 9 14 19 24 29 34 39 VIN (V) TEMPERATURE (°C) VIN (V) 3854 G08 3854 G09 3854 G10
Maximum Current Sense Voltage Maximum Current Sense Threshold Maximum Current Sense Threshold vs Feedback Voltage vs Sense Common Mode Voltage vs Duty Cycle (Current Foldback)
60 65 60 58 60 50 56 TAGE (mV) 54 55 40 (mV) 52 (mV) 50 50 30 48 V SENSE(MAX) 45 20 46 V SENSE(MAX) 44 40 10 42 MAXIMUM CURRENT SENSE VOL 40 35 0 0 1 2 3 4 5 6 7 0 20 40 60 80 100 120 0 0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 COMMON MODE VOLTAGE (V) DUTY CYCLE (%) FB (V) 3854 G11 3854 G12 3854 G13 3854fb 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Related Parts