Datasheet LTC3372 (Analog Devices) - 10
| 制造商 | Analog Devices |
| 描述 | 60V Low IQ Buck Controller Plus 4-Channel 8A Configurable Buck DC/DCs |
| 页数 / 页 | 44 / 10 — TYPICAL PERFORMANCE CHARACTERISTICS. (HV Controller) TA = 25°C, unless … |
| 修订版 | A |
| 文件格式/大小 | PDF / 5.7 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. (HV Controller) TA = 25°C, unless otherwise noted. TRACK/SS Pull-Up Current
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LTC3372
TYPICAL PERFORMANCE CHARACTERISTICS (HV Controller) TA = 25°C, unless otherwise noted. TRACK/SS Pull-Up Current Shutdown (RUN) Threshold Undervoltage Lockout Threshold vs Temperature vs Temperature vs Temperature
12.0 1.300 4.20 VIN = 5V 11.5 VIN = 12V 1.275 4.15 11.0 4.10 RISING 1.250 10.5 4.05 10.0 1.225 RISING 4.00 TAGE (V) TAGE (V) 9.5 1.200 3.95 VOL 9.0 FALLING 1.175 3.90 V CC FALLING 8.5 RUN PIN VOL INT 3.85 TRACK/SS CURRENT (µA) 1.150 8.0 3.80 7.5 1.125 3.75 7.0 1.100 3.70 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3372 G17 3372 G18 3372 G19
Load Step Forced Continuous Load Step Burst Mode Operation Load Step Pulse-Skipping Mode Mode
ILOAD ILOAD I 5A/DIV 5A/DIV LOAD 5A/DIV I I IND IND I 5A/DIV IND 5A/DIV 5A/DIV VOUT VOUT VOUT AC–COUPLED AC–COUPLED AC–COUPLED 100mV/DIV 100mV/DIV 100mV/DIV 100µs/DIV 3372 G20 100µs/DIV 3372 G21 100µs/DIV 3372 G22 VIN = 12V VIN = 12V VIN = 12V VOUT = 3.3V VOUT = 3.3V VOUT = 3.3V ILOAD = 100mA to 8A ILOAD = 100mA to 8A ILOAD = 100mA to 8A
Inductor Current at Light Load Soft Start-Up
FORCED CONTINUOUS V 2A/DIV IN 5V/DIV BURST VOUT = 5V 2A/DIV PULSE- SKIPPING VOUT = 3.3V V 2A/DIV OUT 2V/DIV 5µs/DIV 3372 G23 2ms/DIV 3372 G24 VIN = 12V VOUT = 3.3V ILOAD = 200µA Rev. A 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Low Voltage Regulators Applications Information High Voltage Buck Controller Low Voltage Buck Regulators Printed Circuit Board PCB Layout Considerations Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS (HV Controller) TA = 25°C, unless otherwise noted. TRACK/SS Pull-Up Current Shutdown (RUN) Threshold Undervoltage Lockout Threshold vs Temperature vs Temperature vs Temperature
12.0 1.300 4.20 VIN = 5V 11.5 VIN = 12V 1.275 4.15 11.0 4.10 RISING 1.250 10.5 4.05 10.0 1.225 RISING 4.00 TAGE (V) TAGE (V) 9.5 1.200 3.95 VOL 9.0 FALLING 1.175 3.90 V CC FALLING 8.5 RUN PIN VOL INT 3.85 TRACK/SS CURRENT (µA) 1.150 8.0 3.80 7.5 1.125 3.75 7.0 1.100 3.70 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3372 G17 3372 G18 3372 G19
Load Step Forced Continuous Load Step Burst Mode Operation Load Step Pulse-Skipping Mode Mode
ILOAD ILOAD I 5A/DIV 5A/DIV LOAD 5A/DIV I I IND IND I 5A/DIV IND 5A/DIV 5A/DIV VOUT VOUT VOUT AC–COUPLED AC–COUPLED AC–COUPLED 100mV/DIV 100mV/DIV 100mV/DIV 100µs/DIV 3372 G20 100µs/DIV 3372 G21 100µs/DIV 3372 G22 VIN = 12V VIN = 12V VIN = 12V VOUT = 3.3V VOUT = 3.3V VOUT = 3.3V ILOAD = 100mA to 8A ILOAD = 100mA to 8A ILOAD = 100mA to 8A
Inductor Current at Light Load Soft Start-Up
FORCED CONTINUOUS V 2A/DIV IN 5V/DIV BURST VOUT = 5V 2A/DIV PULSE- SKIPPING VOUT = 3.3V V 2A/DIV OUT 2V/DIV 5µs/DIV 3372 G23 2ms/DIV 3372 G24 VIN = 12V VOUT = 3.3V ILOAD = 200µA Rev. A 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Low Voltage Regulators Applications Information High Voltage Buck Controller Low Voltage Buck Regulators Printed Circuit Board PCB Layout Considerations Typical Applications Package Description Revision History Typical Application Related Parts