Datasheet LTM4626 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 20VIN, 12A Step-Down DC/DC µModule Regulator |
| 页数 / 页 | 28 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. Start-Up with No Load Current. 5V … |
| 修订版 | B |
| 文件格式/大小 | PDF / 1.9 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Start-Up with No Load Current. 5V Output Transient Response. Applied
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LTM4626
TYPICAL PERFORMANCE CHARACTERISTICS Start-Up with No Load Current 5V Output Transient Response Applied
RUN OUTPUT VOLTAGE 5V/DIV 100mV/DIV PGOOD AC COUPLED 5V/DIV VOUT 1V/DIV LOAD STEP CURRENT IIN 2.5A/DIV 0.5A/DIV 4626 G08 100µs/DIV 4626 G09 5ms/DIV VIN = 12V, VOUT = 5V, fS = 1500kHz VIN = 12V, VOUT = 1.5V, fS = 800kHz COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR INTERNAL COMPENSATION, INTERNAL COMPENSATION, COMPa CONNECT TO COMPb, CFF = 33pF COMPa CONNECT TO COMPb, CFF = 33pF 9A ~ 12A (25%) LOAD STEP CSS = 0.1µF
Start-Up with Load Current Short-Circuit with No Load Applied Current Applied
RUN 5V/DIV PGOOD IIN 5V/DIV 1A/DIV VOUT 1V/DIV VOUT 1V/DIV IIN 0.5A/DIV 4626 G10 4626 G11 5ms/DIV 5ms/DIV VIN = 12V, VOUT = 1.5V, fS = 800kHz VIN = 12V, VOUT = 1.5V, fS = 800kHz COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR INTERNAL COMPENSATION, INTERNAL COMPENSATION, COMPa CONNECT TO COMPb, CFF = 33pF COMPa CONNECT TO COMPb, CFF = 33pF CSS = 0.1µF
Short-Circuit with Load Current Steady-State Output Voltage Applied Ripple Start-Up with Pre-Biased Output
RUN 5V/DIV IIN PGOOD 1A/DIV 5V/DIV VOUT 50mV/DIV VOUT VOUT 1V/DIV 1V/DIV IIN 0.5A/DIV 4626 G12 4626 G13 4626 G14 5ms/DIV 5ms/DIV 5ms/DIV VIN = 12V, VOUT = 1.5V, fS = 800kHz VIN = 12V, VOUT = 1.5V, fS = 800kHz VIN = 12V, VOUT = 1.5V, fS = 800kHz COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR INTERNAL COMPENSATION, INTERNAL COMPENSATION, INTERNAL COMPENSATION, COMPa CONNECT TO COMPb, CFF = 33pF COMPa CONNECT TO COMPb, CFF = 33pF COMPa CONNECT TO COMPb, CFF = 33pF MEASURED ON THE 22µF CERAMIC CAPACITOR CSS = 0.1µF Rev B For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photo Design Resources Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Start-Up with No Load Current 5V Output Transient Response Applied
RUN OUTPUT VOLTAGE 5V/DIV 100mV/DIV PGOOD AC COUPLED 5V/DIV VOUT 1V/DIV LOAD STEP CURRENT IIN 2.5A/DIV 0.5A/DIV 4626 G08 100µs/DIV 4626 G09 5ms/DIV VIN = 12V, VOUT = 5V, fS = 1500kHz VIN = 12V, VOUT = 1.5V, fS = 800kHz COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR INTERNAL COMPENSATION, INTERNAL COMPENSATION, COMPa CONNECT TO COMPb, CFF = 33pF COMPa CONNECT TO COMPb, CFF = 33pF 9A ~ 12A (25%) LOAD STEP CSS = 0.1µF
Start-Up with Load Current Short-Circuit with No Load Applied Current Applied
RUN 5V/DIV PGOOD IIN 5V/DIV 1A/DIV VOUT 1V/DIV VOUT 1V/DIV IIN 0.5A/DIV 4626 G10 4626 G11 5ms/DIV 5ms/DIV VIN = 12V, VOUT = 1.5V, fS = 800kHz VIN = 12V, VOUT = 1.5V, fS = 800kHz COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR INTERNAL COMPENSATION, INTERNAL COMPENSATION, COMPa CONNECT TO COMPb, CFF = 33pF COMPa CONNECT TO COMPb, CFF = 33pF CSS = 0.1µF
Short-Circuit with Load Current Steady-State Output Voltage Applied Ripple Start-Up with Pre-Biased Output
RUN 5V/DIV IIN PGOOD 1A/DIV 5V/DIV VOUT 50mV/DIV VOUT VOUT 1V/DIV 1V/DIV IIN 0.5A/DIV 4626 G12 4626 G13 4626 G14 5ms/DIV 5ms/DIV 5ms/DIV VIN = 12V, VOUT = 1.5V, fS = 800kHz VIN = 12V, VOUT = 1.5V, fS = 800kHz VIN = 12V, VOUT = 1.5V, fS = 800kHz COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR COUT = 3x 100µF + 1x 22µF CERAMIC CAPACITOR INTERNAL COMPENSATION, INTERNAL COMPENSATION, INTERNAL COMPENSATION, COMPa CONNECT TO COMPb, CFF = 33pF COMPa CONNECT TO COMPb, CFF = 33pF COMPa CONNECT TO COMPb, CFF = 33pF MEASURED ON THE 22µF CERAMIC CAPACITOR CSS = 0.1µF Rev B For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photo Design Resources Related Parts