Datasheet LTC3374 (Analog Devices) - 10
| 制造商 | Analog Devices |
| 描述 | 8-Channel Parallelable 1A Buck DC/DCs |
| 页数 / 页 | 26 / 10 — TYPICAL PERFORMANCE CHARACTERISTICS. 1A Buck Regulator No-Load. 4A Buck … |
| 文件格式/大小 | PDF / 460 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. 1A Buck Regulator No-Load. 4A Buck Regulator No-Load. Start-Up Transient (Burst Mode
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LTC3374
TYPICAL PERFORMANCE CHARACTERISTICS 1A Buck Regulator No-Load 4A Buck Regulator No-Load Start-Up Transient (Burst Mode Start-Up Transient (Forced 1A Buck Regulator, Transient Operation) Continuous Mode) Response (Burst Mode Operation)
V VOUT OUT VOUT 100mV/DIV 500mV/DIV 500mV/DIV AC-COUPLED INDUCTOR INDUCTOR CURRENT INDUCTOR CURRENT 200mA/DIV CURRENT 500mA/DIV 0mA 500mA/DIV EN 2V/DIV EN 2V/DIV V 3374 G33 3374 G34 3374 G35 IN = 3.3V 200µs/DIV VIN = 3.3V 200µs/DIV 50µs/DIV LOAD STEP = 100mA TO 700mA VIN = 3.3V VOUT = 1.8V
1A Buck Regulator, Transient 4A Buck Regulator, Transient Response (Forced Continuous 4A Buck Regulator, Transient Response (Forced Continuous Mode) Response (Burst Mode Operation) Mode)
VOUT 100mV/DIV V V AC-COUPLED OUT OUT 100mV/DIV 100mV/DIV AC-COUPLED AC-COUPLED INDUCTOR CURRENT INDUCTOR INDUCTOR 200mA/DIV CURRENT CURRENT 1A/DIV 1A/DIV 0mA 0mA 0mA 50µs/DIV 3374 G36 50µs/DIV 3374 G37 50µs/DIV 3374 G38 LOAD STEP = 100mA TO 700mA LOAD STEP = 400mA TO 2.8A LOAD STEP = 400mA TO 2.8A VIN = 3.3V VIN = 3.3V VIN = 3.3V VOUT = 1.8V VOUT = 1.8V VOUT = 1.8V 3374fc 10 For more information www.linear.com/LTC3374 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Buck Switching Regulators Buck Regulators with Combined Power Stages Power Failure Reporting Via PGOOD_ALL Pin Temperature Monitoring and Overtemperature Protection Programming the Operating Frequency Applications Information Buck Switching Regulator Output Voltage and Feedback Network Buck Regulators Combined Buck Regulators Input and Output Decoupling Capacitor Selection PCB Considerations Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS 1A Buck Regulator No-Load 4A Buck Regulator No-Load Start-Up Transient (Burst Mode Start-Up Transient (Forced 1A Buck Regulator, Transient Operation) Continuous Mode) Response (Burst Mode Operation)
V VOUT OUT VOUT 100mV/DIV 500mV/DIV 500mV/DIV AC-COUPLED INDUCTOR INDUCTOR CURRENT INDUCTOR CURRENT 200mA/DIV CURRENT 500mA/DIV 0mA 500mA/DIV EN 2V/DIV EN 2V/DIV V 3374 G33 3374 G34 3374 G35 IN = 3.3V 200µs/DIV VIN = 3.3V 200µs/DIV 50µs/DIV LOAD STEP = 100mA TO 700mA VIN = 3.3V VOUT = 1.8V
1A Buck Regulator, Transient 4A Buck Regulator, Transient Response (Forced Continuous 4A Buck Regulator, Transient Response (Forced Continuous Mode) Response (Burst Mode Operation) Mode)
VOUT 100mV/DIV V V AC-COUPLED OUT OUT 100mV/DIV 100mV/DIV AC-COUPLED AC-COUPLED INDUCTOR CURRENT INDUCTOR INDUCTOR 200mA/DIV CURRENT CURRENT 1A/DIV 1A/DIV 0mA 0mA 0mA 50µs/DIV 3374 G36 50µs/DIV 3374 G37 50µs/DIV 3374 G38 LOAD STEP = 100mA TO 700mA LOAD STEP = 400mA TO 2.8A LOAD STEP = 400mA TO 2.8A VIN = 3.3V VIN = 3.3V VIN = 3.3V VOUT = 1.8V VOUT = 1.8V VOUT = 1.8V 3374fc 10 For more information www.linear.com/LTC3374 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Buck Switching Regulators Buck Regulators with Combined Power Stages Power Failure Reporting Via PGOOD_ALL Pin Temperature Monitoring and Overtemperature Protection Programming the Operating Frequency Applications Information Buck Switching Regulator Output Voltage and Feedback Network Buck Regulators Combined Buck Regulators Input and Output Decoupling Capacitor Selection PCB Considerations Package Description Revision History Typical Application Related Parts