Datasheet LTC3565 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 1.25A, 4MHz, Synchronous Step-Down DC/DC Converter |
| 页数 / 页 | 22 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. TJ = 25°C, VIN = 3.6V, fO = 1MHz, … |
| 文件格式/大小 | PDF / 824 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. TJ = 25°C, VIN = 3.6V, fO = 1MHz, unless. otherwise noted. Frequency Variation vs Input
该数据表的模型线
文件文字版本
LTC3565
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, VIN = 3.6V, fO = 1MHz, unless otherwise noted. Frequency Variation vs Input Voltage RDS(ON) vs Input Voltage RDS(ON) vs Temperature
6 0.25 0.30 4 0.20 0.25 2 TION (%) 0.20 0.15 0 (Ω) (Ω) ARIA 0.15 –2 R DS(ON) 0.10 R DS(ON) 0.10 –4 FREQUENCY V 0.05 –6 MAIN SWITCH 0.05 MAIN SWITCH SYNCHRONOUS SWITCH SYNCHRONOUS SWITCH –8 0.0 0.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 –25 0 25 50 75 100 125 INPUT VOLTAGE (V) INPUT VOLTAGE (V) TEMPERATURE (°C) 3565 G10 3565 G11 3565 G12
Dynamic Supply Current vs Input Dynamic Supply Current vs Voltage Temperature Switch Leakage vs Input Voltage
100 100 2500 10 FORCED CONTINUOUS 10 FORCED CONTINUOUS 2000 MAIN SWITCH 1 1 1500 Y CURRENT (mA) PULSE SKIP Y CURRENT (mA) PULSE SKIP 0.1 Burst Mode 0.1 Burst Mode 1000 OPERATION OPERATION SWITCH LEAKAGE (pA) SYNCHRONOUS SWITCH 0.01 0.01 500 DYNAMIC SUPPL VOUT = 1.8V DYNAMIC SUPPL VOUT = 1.8V ILOAD = 0A ILOAD = 0A 0.001 0.001 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 INPUT VOLTAGE (V) TEMPERATURE (°C) INPUT VOLTAGE (V) 3565 G13 3565 G14 3565 G15
Switch Leakage vs Temperature Burst Mode Operation Pulse Skipping Mode
600 SW SW 500 2V/DIV 2V/DIV 400 VOUT VOUT 50mV/DIV 50mV/DIV 300 AC COUPLED AC COUPLED IL IL 200 200mA/DIV 200mA/DIV SWITCH LEAKAGE (nA) MAIN SWITCH SYNCHRONOUS SWITCH 100 3565 G17 4µs/DIV 3565 G18 4µs/DIV VIN = 3.6V VIN = 3.6V 0 VOUT = 1.8V VOUT = 1.8V –50 –25 0 25 50 75 100 125 ILOAD = 50mA ILOAD = 5mA TEMPERATURE (°C) 3565 G16 3565fc For more information www.linear.com/LTC3565 5 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 Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, VIN = 3.6V, fO = 1MHz, unless otherwise noted. Frequency Variation vs Input Voltage RDS(ON) vs Input Voltage RDS(ON) vs Temperature
6 0.25 0.30 4 0.20 0.25 2 TION (%) 0.20 0.15 0 (Ω) (Ω) ARIA 0.15 –2 R DS(ON) 0.10 R DS(ON) 0.10 –4 FREQUENCY V 0.05 –6 MAIN SWITCH 0.05 MAIN SWITCH SYNCHRONOUS SWITCH SYNCHRONOUS SWITCH –8 0.0 0.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 –25 0 25 50 75 100 125 INPUT VOLTAGE (V) INPUT VOLTAGE (V) TEMPERATURE (°C) 3565 G10 3565 G11 3565 G12
Dynamic Supply Current vs Input Dynamic Supply Current vs Voltage Temperature Switch Leakage vs Input Voltage
100 100 2500 10 FORCED CONTINUOUS 10 FORCED CONTINUOUS 2000 MAIN SWITCH 1 1 1500 Y CURRENT (mA) PULSE SKIP Y CURRENT (mA) PULSE SKIP 0.1 Burst Mode 0.1 Burst Mode 1000 OPERATION OPERATION SWITCH LEAKAGE (pA) SYNCHRONOUS SWITCH 0.01 0.01 500 DYNAMIC SUPPL VOUT = 1.8V DYNAMIC SUPPL VOUT = 1.8V ILOAD = 0A ILOAD = 0A 0.001 0.001 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 INPUT VOLTAGE (V) TEMPERATURE (°C) INPUT VOLTAGE (V) 3565 G13 3565 G14 3565 G15
Switch Leakage vs Temperature Burst Mode Operation Pulse Skipping Mode
600 SW SW 500 2V/DIV 2V/DIV 400 VOUT VOUT 50mV/DIV 50mV/DIV 300 AC COUPLED AC COUPLED IL IL 200 200mA/DIV 200mA/DIV SWITCH LEAKAGE (nA) MAIN SWITCH SYNCHRONOUS SWITCH 100 3565 G17 4µs/DIV 3565 G18 4µs/DIV VIN = 3.6V VIN = 3.6V 0 VOUT = 1.8V VOUT = 1.8V –50 –25 0 25 50 75 100 125 ILOAD = 50mA ILOAD = 5mA TEMPERATURE (°C) 3565 G16 3565fc For more information www.linear.com/LTC3565 5 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 Package Description Revision History Typical Application Related Parts