Datasheet LTC7812 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Low IQ, 38V Synchronous Boost+Buck Controller |
| 页数 / 页 | 44 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Load Step at VIN = 9V. Load Step at … |
| 文件格式/大小 | PDF / 2.3 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Load Step at VIN = 9V. Load Step at VIN = 14V. Load Step at VIN = 18V
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LTC7812
TYPICAL PERFORMANCE CHARACTERISTICS Load Step at VIN = 9V Load Step at VIN = 14V Load Step at VIN = 18V Burst Mode Operation Burst Mode Operation Burst Mode Operation
VOUT VOUT VOUT 1V/DIV 1V/DIV 1V/DIV AC- AC- AC- COUPLED COUPLED COUPLED IL1 IL1 IL1 2A/DIV 2A/DIV 2A/DIV 200µs/DIV 7812 G10 200µs/DIV 7812 G11 200µs/DIV 7812 G12 FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT VOUT = 12V VOUT = 12V VOUT = 12V
Load Step at VIN = 9V Load Step at VIN = 14V Load Step at VIN = 18V Pulse-Skipping Mode Pulse-Skipping Mode Pulse-Skipping Mode
VOUT VOUT VOUT 500mV/DIV 500mV/DIV 500mV/DIV AC- AC- AC- COUPLED COUPLED COUPLED IL1 I IL1 2A/DIV L1 2A/DIV 2A/DIV 200µs/DIV 7812 G13 200µs/DIV 7812 G14 200µs/DIV 7812 G15 FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT VOUT = 12V VOUT = 12V VOUT = 12V
Load Step at V Load Step at V Load Step at V IN = 9V IN = 14V IN = 18V Forced Continuous Mode Forced Continuous Mode Forced Continuous Mode
VOUT VOUT VOUT 500mV/DIV 500mV/DIV 500mV/DIV AC- AC- AC- COUPLED COUPLED COUPLED IL1 IL1 IL1 2A/DIV 2A/DIV 2A/DIV 200µs/DIV 7812 G16 200µs/DIV 7812 G17 200µs/DIV 7812 G18 FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT VOUT = 12V VOUT = 12V VOUT = 12V 7812fc For more information www.linear.com/LTC7812 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Load Step at VIN = 9V Load Step at VIN = 14V Load Step at VIN = 18V Burst Mode Operation Burst Mode Operation Burst Mode Operation
VOUT VOUT VOUT 1V/DIV 1V/DIV 1V/DIV AC- AC- AC- COUPLED COUPLED COUPLED IL1 IL1 IL1 2A/DIV 2A/DIV 2A/DIV 200µs/DIV 7812 G10 200µs/DIV 7812 G11 200µs/DIV 7812 G12 FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT VOUT = 12V VOUT = 12V VOUT = 12V
Load Step at VIN = 9V Load Step at VIN = 14V Load Step at VIN = 18V Pulse-Skipping Mode Pulse-Skipping Mode Pulse-Skipping Mode
VOUT VOUT VOUT 500mV/DIV 500mV/DIV 500mV/DIV AC- AC- AC- COUPLED COUPLED COUPLED IL1 I IL1 2A/DIV L1 2A/DIV 2A/DIV 200µs/DIV 7812 G13 200µs/DIV 7812 G14 200µs/DIV 7812 G15 FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT VOUT = 12V VOUT = 12V VOUT = 12V
Load Step at V Load Step at V Load Step at V IN = 9V IN = 14V IN = 18V Forced Continuous Mode Forced Continuous Mode Forced Continuous Mode
VOUT VOUT VOUT 500mV/DIV 500mV/DIV 500mV/DIV AC- AC- AC- COUPLED COUPLED COUPLED IL1 IL1 IL1 2A/DIV 2A/DIV 2A/DIV 200µs/DIV 7812 G16 200µs/DIV 7812 G17 200µs/DIV 7812 G18 FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT FIGURE 9 CIRCUIT VOUT = 12V VOUT = 12V VOUT = 12V 7812fc For more information www.linear.com/LTC7812 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Typical Application Related Parts