Datasheet LTC3528-2 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 1A, 2MHz Synchronous Step-Up DC/DC Converter in 2mm × 3mm DFN |
| 页数 / 页 | 18 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted). … |
| 文件格式/大小 | PDF / 406 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted). Fixed Frequency VOUT Ripple and
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LTC3528-2
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted) Fixed Frequency VOUT Ripple and Inductor Current Waveforms Burst Mode Waveforms VOUT and IIN During Soft-Start
VOUT VOUT V 50mV/DIV 1V/DIV OUT 20mV/DIV IIN 200mA/DIV INDUCTOR IL CURRENT 200mA/DIV 100mA/DIV SHDN PIN IN = 1.2V 500ns/DIV 35282 G19 V 5µs/DIV 35282 G20 VIN = 3.6V 200µs/DIV 35282 G21 VIN = 1.2V V VOUT = 5V V OUT = 3.3V OUT = 3.3V C COUT = 10µF C OUT = 10µF OUT = 10µF C CFF = 33pF L = 2.2µH FF = 33pF IOUT = 100mA ILOAD = 30mA L = 2.2µH
Load Step Response (Fixed Load Step Response (Burst Mode Frequency, 3.6V to 5V) Operation, 3.6V to 5V)
VOUT VOUT 100mV/DIV 100mV/DIV LOAD CURRENT LOAD 200mA/DIV CURRENT 200mA/DIV 20µs/DIV 35282 G22 VIN = 3.6V 20µs/DIV 35282 G23 VIN = 3.6V VOUT = 5V VOUT = 5V COUT = 10µF COUT = 10µF L = 2.2µH L = 2.2µH LOAD CURRENT = 100mA TO 550mA LOAD CURRENT = 20mA TO 550mA
Load Step Response (Fixed Load Step Response (Burst Mode Frequency, 1.2V to 3.3V) Operation, 1.2V to 3.3V)
VOUT VOUT 100mV/DIV 100mV/DIV LOAD LOAD CURRENT CURRENT 100mA/DIV 100mA/DIV 20µs/DIV 35282 G24 VIN = 1.2V 20µs/DIV 35282 G25 VIN = 1.2V VOUT = 3.3V VOUT = 3.3V COUT = 10µF COUT = 10µF L = 2.2µH L = 2.2µH LOAD CURRENT = 20mA TO 170mA LOAD CURRENT = 10mA TO 160mA 35282fb 6 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 Applications Package Description Revision History Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted) Fixed Frequency VOUT Ripple and Inductor Current Waveforms Burst Mode Waveforms VOUT and IIN During Soft-Start
VOUT VOUT V 50mV/DIV 1V/DIV OUT 20mV/DIV IIN 200mA/DIV INDUCTOR IL CURRENT 200mA/DIV 100mA/DIV SHDN PIN IN = 1.2V 500ns/DIV 35282 G19 V 5µs/DIV 35282 G20 VIN = 3.6V 200µs/DIV 35282 G21 VIN = 1.2V V VOUT = 5V V OUT = 3.3V OUT = 3.3V C COUT = 10µF C OUT = 10µF OUT = 10µF C CFF = 33pF L = 2.2µH FF = 33pF IOUT = 100mA ILOAD = 30mA L = 2.2µH
Load Step Response (Fixed Load Step Response (Burst Mode Frequency, 3.6V to 5V) Operation, 3.6V to 5V)
VOUT VOUT 100mV/DIV 100mV/DIV LOAD CURRENT LOAD 200mA/DIV CURRENT 200mA/DIV 20µs/DIV 35282 G22 VIN = 3.6V 20µs/DIV 35282 G23 VIN = 3.6V VOUT = 5V VOUT = 5V COUT = 10µF COUT = 10µF L = 2.2µH L = 2.2µH LOAD CURRENT = 100mA TO 550mA LOAD CURRENT = 20mA TO 550mA
Load Step Response (Fixed Load Step Response (Burst Mode Frequency, 1.2V to 3.3V) Operation, 1.2V to 3.3V)
VOUT VOUT 100mV/DIV 100mV/DIV LOAD LOAD CURRENT CURRENT 100mA/DIV 100mA/DIV 20µs/DIV 35282 G24 VIN = 1.2V 20µs/DIV 35282 G25 VIN = 1.2V VOUT = 3.3V VOUT = 3.3V COUT = 10µF COUT = 10µF L = 2.2µH L = 2.2µH LOAD CURRENT = 20mA TO 170mA LOAD CURRENT = 10mA TO 160mA 35282fb 6 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 Applications Package Description Revision History Related Parts