Datasheet LTC3104 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 2.6μA Quiescent Current, 15V, 300mA Synchronous Step-Down DC/DC Converter and 10mA LDO |
| 页数 / 页 | 22 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. … |
| 文件格式/大小 | PDF / 486 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. Start-Up into Pre-Biased Output
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LTC3104
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted Start-Up into Pre-Biased Output Automatic Burst Mode Operation Forced Continuous Operation (Automatic Burst Mode Operation) LOAD
RUN 5V/DIV VOUT V COUT = 100µF 20mV/DIV OUT 1V/DIV VOUT AC-COUPLED VBST REFRESH SOFT-START 20mV/DIV CURRENT PULSES PERIOD PGOOD BURST CURRENT I 5V/DIV C L PULSES OUT = 47µF 100mA/DIV VOUT IL 20mV/DIV 100mA/DIV 1µs/DIV 3104 G14 ILOAD = 25mA 500µs/DIV 3104 G15 ILOAD = 2mA VIN = 10V VIN = 10V 3103 G13 CIN = 10µF CIN = 10µF V 50µs/DIV L = 10µH L = 10µH IN = 10V C V IN = 10µF OUT = 2.5V VOUT = 2.5V L = 10µH COUT = 22µF COUT = 47µF VOUT = 2.2V
Start-Up into Pre-Biased Output Start-Up from Shutdown Start-Up from Shutdown (Forced Continuous Operation) (Automatic Burst Mode Operation) (Forced Continuous Operation)
RUN RUN RUN 5V/DIV 5V/DIV 5V/DIV VOUT PGOOD PGOOD 1V/DIV 5V/DIV 5V/DIV VOUT VOUT PGOOD 1V/DIV 1V/DIV 5V/DIV SOFT-START/ V FOLDBACK PERIOD BST REFRESH I I I L L L CURRENT PULSES 100mA/DIV 100mA/DIV 100mA/DIV 500µs/DIV 3104 G16 ILOAD = 2mA 500µs/DIV 3104 G17 ILOAD = 25mA 500µs/DIV 3104 G18 ILOAD = 25mA VIN = 10V VIN = 10V VIN = 10V L = 10µH L = 10µH L = 10µH VOUT = 2.5V VOUT = 2.5V VOUT = 2.5V
Minimum Input Voltage at Load Step Load Step Maximum Duty Cycle vs Load (Automatic Burst Mode Operation) (Forced Continuous Operation) Current
V 5.5 OUT VOUT 200mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED 5.0 IL 200mA/DIV IL V V 100mA/DIV 4.5 OUT = 4.2V OUT = 2.2V VOUT = 3.3V VOUT = 1.8V VOUT = 2.5V VOUT = 1.5V I 4.0 I LOAD LOAD 100mA/DIV 200mA/DIV 200µs/DIV 3104 G19 200µs/DIV 3104 G20 INPUT VOLTAGE (V) 3.5 ILOAD = LOAD STEP, 5mA TO 300mA ILOAD = LOAD STEP, 50mA TO 200mA VIN = 10V VIN = 10V C 3.0 IN = 10µF L = 10µH L = 10µH VOUT = 2.5V VOUT = 2.5V COUT = 22µF 2.5 COUT = 47µF 0 50 100 150 200 250 300 LOAD CURRENT (mA) 3104 G21 3104fa 6 For more information www.linear.com/LTC3104 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted Start-Up into Pre-Biased Output Automatic Burst Mode Operation Forced Continuous Operation (Automatic Burst Mode Operation) LOAD
RUN 5V/DIV VOUT V COUT = 100µF 20mV/DIV OUT 1V/DIV VOUT AC-COUPLED VBST REFRESH SOFT-START 20mV/DIV CURRENT PULSES PERIOD PGOOD BURST CURRENT I 5V/DIV C L PULSES OUT = 47µF 100mA/DIV VOUT IL 20mV/DIV 100mA/DIV 1µs/DIV 3104 G14 ILOAD = 25mA 500µs/DIV 3104 G15 ILOAD = 2mA VIN = 10V VIN = 10V 3103 G13 CIN = 10µF CIN = 10µF V 50µs/DIV L = 10µH L = 10µH IN = 10V C V IN = 10µF OUT = 2.5V VOUT = 2.5V L = 10µH COUT = 22µF COUT = 47µF VOUT = 2.2V
Start-Up into Pre-Biased Output Start-Up from Shutdown Start-Up from Shutdown (Forced Continuous Operation) (Automatic Burst Mode Operation) (Forced Continuous Operation)
RUN RUN RUN 5V/DIV 5V/DIV 5V/DIV VOUT PGOOD PGOOD 1V/DIV 5V/DIV 5V/DIV VOUT VOUT PGOOD 1V/DIV 1V/DIV 5V/DIV SOFT-START/ V FOLDBACK PERIOD BST REFRESH I I I L L L CURRENT PULSES 100mA/DIV 100mA/DIV 100mA/DIV 500µs/DIV 3104 G16 ILOAD = 2mA 500µs/DIV 3104 G17 ILOAD = 25mA 500µs/DIV 3104 G18 ILOAD = 25mA VIN = 10V VIN = 10V VIN = 10V L = 10µH L = 10µH L = 10µH VOUT = 2.5V VOUT = 2.5V VOUT = 2.5V
Minimum Input Voltage at Load Step Load Step Maximum Duty Cycle vs Load (Automatic Burst Mode Operation) (Forced Continuous Operation) Current
V 5.5 OUT VOUT 200mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED 5.0 IL 200mA/DIV IL V V 100mA/DIV 4.5 OUT = 4.2V OUT = 2.2V VOUT = 3.3V VOUT = 1.8V VOUT = 2.5V VOUT = 1.5V I 4.0 I LOAD LOAD 100mA/DIV 200mA/DIV 200µs/DIV 3104 G19 200µs/DIV 3104 G20 INPUT VOLTAGE (V) 3.5 ILOAD = LOAD STEP, 5mA TO 300mA ILOAD = LOAD STEP, 50mA TO 200mA VIN = 10V VIN = 10V C 3.0 IN = 10µF L = 10µH L = 10µH VOUT = 2.5V VOUT = 2.5V COUT = 22µF 2.5 COUT = 47µF 0 50 100 150 200 250 300 LOAD CURRENT (mA) 3104 G21 3104fa 6 For more information www.linear.com/LTC3104 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts