Datasheet LTC3527, LTC3527-1 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | Dual 800mA/400mA, 1.2MHz/2.2MHz Synchronous Step-Up DC/DC Converters |
| Pages / Page | 22 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C, unless otherwise noted). … |
| File Format / Size | PDF / 373 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C, unless otherwise noted). VOUT1 Load Step Response
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Text Version of Document
LTC3527/LTC3527-1
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C, unless otherwise noted) VOUT1 Load Step Response VOUT and IIN During Start-Up Fixed Frequency at 1.2MHz
VOUT1 100mV/DIV AC-COUPLED VOUT1 1V/DIV INPUT CURRENT 200mA/DIV LOAD CURRENT SHDN1 PIN 50mA/DIV 1V/DIV 35271 G25 35271 G26 100μs/DIV 100μs/DIV VOUT1 = 3.3V VIN = 3.6V 50mA TO 150mA STEP COUT1 = 10μF VOUT1 = 5V COUT1 = 10μF
VOUT1 Load Step Response VOUT2 Load Step Response Burst Mode Operation at 1.2MHz Fixed Frequency at 2.2MHz
VOUT1 VOUT2 100mV/DIV 100mV/DIV AC-COUPLED AC-COUPLED LOAD LOAD CURRENT CURRENT 50mA/DIV 50mA/DIV 35271 G27 35271 G28 100μs/DIV 100μs/DIV VIN = 3.6V 20mA TO 170mA STEP VIN = 3.6V 50mA TO 100mA STEP VOUT1 = 5V COUT1 = 10μF VOUT2 = 5V COUT2 = 10μF
VOUT1 = 5V Load Regulation VOUT2 = 3.3V Load Regulation
0.3 0.3 VIN = 2.4V VIN = 2.4V L = 3.3µH L = 3.3µH 0.2 MODE = HIGH 0.2 MODE = HIGH 0.1 0.1 0 0 CHANGE (%) CHANGE (%) OUT1 –0.1 OUT2 –0.1 V V –0.2 –0.2 –0.3. –0.3. 0 50 100 150 200 250 300 350 400 0 100 200 300 ILOAD1 (mA) ILOAD2 (mA) 35271 G29 35271 G30 35271fc 7
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C, unless otherwise noted) VOUT1 Load Step Response VOUT and IIN During Start-Up Fixed Frequency at 1.2MHz
VOUT1 100mV/DIV AC-COUPLED VOUT1 1V/DIV INPUT CURRENT 200mA/DIV LOAD CURRENT SHDN1 PIN 50mA/DIV 1V/DIV 35271 G25 35271 G26 100μs/DIV 100μs/DIV VOUT1 = 3.3V VIN = 3.6V 50mA TO 150mA STEP COUT1 = 10μF VOUT1 = 5V COUT1 = 10μF
VOUT1 Load Step Response VOUT2 Load Step Response Burst Mode Operation at 1.2MHz Fixed Frequency at 2.2MHz
VOUT1 VOUT2 100mV/DIV 100mV/DIV AC-COUPLED AC-COUPLED LOAD LOAD CURRENT CURRENT 50mA/DIV 50mA/DIV 35271 G27 35271 G28 100μs/DIV 100μs/DIV VIN = 3.6V 20mA TO 170mA STEP VIN = 3.6V 50mA TO 100mA STEP VOUT1 = 5V COUT1 = 10μF VOUT2 = 5V COUT2 = 10μF
VOUT1 = 5V Load Regulation VOUT2 = 3.3V Load Regulation
0.3 0.3 VIN = 2.4V VIN = 2.4V L = 3.3µH L = 3.3µH 0.2 MODE = HIGH 0.2 MODE = HIGH 0.1 0.1 0 0 CHANGE (%) CHANGE (%) OUT1 –0.1 OUT2 –0.1 V V –0.2 –0.2 –0.3. –0.3. 0 50 100 150 200 250 300 350 400 0 100 200 300 ILOAD1 (mA) ILOAD2 (mA) 35271 G29 35271 G30 35271fc 7
