Datasheet LT3383 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | Multioutput Power Management Solution with 4 Buck Switching and 3 LDO Linear Regulators |
| 页数 / 页 | 18 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.8V, TA = 25°C unless … |
| 文件格式/大小 | PDF / 1.2 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.8V, TA = 25°C unless otherwise noted. Standby IVIN vs VIN
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LT3383
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.8V, TA = 25°C unless otherwise noted Standby IVIN vs VIN LDO1 to LDO3 IVIN vs VIN
16 250 ENABLE 3 LDOs 14 200 12 ENABLE 2 LDOs 10 150 (µA) 8 (µA) ENABLE 1 LDO I VIN I VIN 6 100 4 50 2 0 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.50 3.50 4.50 5.50 VIN (V) VIN (V) 3383 G01 3383 G02
Step-Down Switching Regulator Input Supply Current IVIN vs VIN vs Temperature
900 1200 800 ALL REGULATORS ENABLED ENABLE FOUR BUCKS 1000 700 ENABLE THREE BUCKS 600 800 500 ENABLE TWO BUCKS (µA) (µA) 600 I VIN 400 ENABLE ONE BUCK I VIN 300 400 200 200 100 STANDBY 0 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 0 50 100 150 VIN (V) TEMPERATURE (°C) 3383 G03 3383 G04
Oscillator Frequency Oscillator Frequency Change vs Temperature vs VIN
2.30 0.8 2.25 0.6 0.4 2.20 0.2 2.15 0 –0.2 FREQUENCY (MHz) 2.10 PERCENT CHANGE (%) –0.4 2.05 –0.6 2.00 –0.8 –50 0 50 100 150 2.5 3.0 3.5 4.0 4.5 5.0 5.5 TEMPERATURE (°C) VIN (V) 3383 G05 3383 G06 Rev. 0 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Introduction Step-Down Switching Regulators Power On Sequencing Fault Detection and Reporting Applications Information Thermal Considerations and Board Layout Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.8V, TA = 25°C unless otherwise noted Standby IVIN vs VIN LDO1 to LDO3 IVIN vs VIN
16 250 ENABLE 3 LDOs 14 200 12 ENABLE 2 LDOs 10 150 (µA) 8 (µA) ENABLE 1 LDO I VIN I VIN 6 100 4 50 2 0 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.50 3.50 4.50 5.50 VIN (V) VIN (V) 3383 G01 3383 G02
Step-Down Switching Regulator Input Supply Current IVIN vs VIN vs Temperature
900 1200 800 ALL REGULATORS ENABLED ENABLE FOUR BUCKS 1000 700 ENABLE THREE BUCKS 600 800 500 ENABLE TWO BUCKS (µA) (µA) 600 I VIN 400 ENABLE ONE BUCK I VIN 300 400 200 200 100 STANDBY 0 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 0 50 100 150 VIN (V) TEMPERATURE (°C) 3383 G03 3383 G04
Oscillator Frequency Oscillator Frequency Change vs Temperature vs VIN
2.30 0.8 2.25 0.6 0.4 2.20 0.2 2.15 0 –0.2 FREQUENCY (MHz) 2.10 PERCENT CHANGE (%) –0.4 2.05 –0.6 2.00 –0.8 –50 0 50 100 150 2.5 3.0 3.5 4.0 4.5 5.0 5.5 TEMPERATURE (°C) VIN (V) 3383 G05 3383 G06 Rev. 0 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Introduction Step-Down Switching Regulators Power On Sequencing Fault Detection and Reporting Applications Information Thermal Considerations and Board Layout Typical Applications Package Description Typical Application Related Parts