Datasheet LTC3833 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | Fast Accurate Step-Down DC/DC Controller with Differential Output Sensing |
| 页数 / 页 | 36 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. … |
| 文件格式/大小 | PDF / 530 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted. Transient Response: Forced
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LTC3833
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted Transient Response: Forced Load Step: Forced Continuous Load Release: Forced Continuous Continuous Mode Mode Mode
ILOAD ILOAD ILOAD 20A/DIV 20A/DIV 20A/DIV VOUT VOUT 50mV/DIV 50mV/DIV VOUT 50mV/DIV IL IL IL 20A/DIV 20A/DIV 20A/DIV 50µs/DIV 3833 G01 5µs/DIV 3833 G02 5µs/DIV 3833 G03 LOAD TRANSIENT = 0A TO 20A LOAD STEP = 0A TO 20A LOAD RELEASE = 20A TO 0A VIN = 12V, VOUT = 1.5V VIN = 12V, VOUT = 1.5V VIN = 12V, VOUT = 1.5V FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT
Transient Response: Pulse- Load Release: Pulse-Skipping Skipping Mode Load Step: Pulse-Skipping Mode Mode
ILOAD ILOAD ILOAD 20A/DIV 20A/DIV 20A/DIV VOUT VOUT 50mV/DIV 50mV/DIV VOUT 50mV/DIV IL IL IL 20A/DIV 20A/DIV 20A/DIV 50µs/DIV 3833 G04 5µs/DIV 3833 G05 5µs/DIV 3833 G06 LOAD TRANSIENT = 500mA TO 20A LOAD STEP = 500mA TO 20A LOAD RELEASE = 20A TO 500mA VIN = 12V, VOUT = 1.5V VIN = 12V, VOUT = 1.5V VIN = 12V, VOUT = 1.5V FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT
Soft Start-Up into Normal Soft Start-Up a Pre-Biased Output Output Tracking
VIN RUN 5V/DIV 2V/DIV VOUT TRACK/SS 500mV/DIV 200mV/DIV TRACK/SS VOUT PRE-BIASED TO 0.75V TRACK/SS 200mV/DIV V 200mV/DIV OUT VOUT 500mV/DIV 500mV/DIV 10ms/DIV 3833 G07 VIN = 12V 10ms/DIV 3833 G08 VIN = 12V 10ms/DIV 3833 G09 VIN = 12V VOUT = 1.5V VOUT = 1.5V VOUT = 1.5V FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT 3833f 5
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted Transient Response: Forced Load Step: Forced Continuous Load Release: Forced Continuous Continuous Mode Mode Mode
ILOAD ILOAD ILOAD 20A/DIV 20A/DIV 20A/DIV VOUT VOUT 50mV/DIV 50mV/DIV VOUT 50mV/DIV IL IL IL 20A/DIV 20A/DIV 20A/DIV 50µs/DIV 3833 G01 5µs/DIV 3833 G02 5µs/DIV 3833 G03 LOAD TRANSIENT = 0A TO 20A LOAD STEP = 0A TO 20A LOAD RELEASE = 20A TO 0A VIN = 12V, VOUT = 1.5V VIN = 12V, VOUT = 1.5V VIN = 12V, VOUT = 1.5V FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT
Transient Response: Pulse- Load Release: Pulse-Skipping Skipping Mode Load Step: Pulse-Skipping Mode Mode
ILOAD ILOAD ILOAD 20A/DIV 20A/DIV 20A/DIV VOUT VOUT 50mV/DIV 50mV/DIV VOUT 50mV/DIV IL IL IL 20A/DIV 20A/DIV 20A/DIV 50µs/DIV 3833 G04 5µs/DIV 3833 G05 5µs/DIV 3833 G06 LOAD TRANSIENT = 500mA TO 20A LOAD STEP = 500mA TO 20A LOAD RELEASE = 20A TO 500mA VIN = 12V, VOUT = 1.5V VIN = 12V, VOUT = 1.5V VIN = 12V, VOUT = 1.5V FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT
Soft Start-Up into Normal Soft Start-Up a Pre-Biased Output Output Tracking
VIN RUN 5V/DIV 2V/DIV VOUT TRACK/SS 500mV/DIV 200mV/DIV TRACK/SS VOUT PRE-BIASED TO 0.75V TRACK/SS 200mV/DIV V 200mV/DIV OUT VOUT 500mV/DIV 500mV/DIV 10ms/DIV 3833 G07 VIN = 12V 10ms/DIV 3833 G08 VIN = 12V 10ms/DIV 3833 G09 VIN = 12V VOUT = 1.5V VOUT = 1.5V VOUT = 1.5V FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT FIGURE 10 CIRCUIT 3833f 5