Datasheet LTM8078 (Analog Devices) - 21
| 制造商 | Analog Devices |
| 描述 | Dual 1.4A, Single 2.8A Step-Down Silent Switcher μModule Regulator |
| 页数 / 页 | 26 / 21 — APPLICATIONS INFORMATION. Figure 3. Graphical Representation of Thermal … |
| 修订版 | A |
| 文件格式/大小 | PDF / 3.5 Mb |
| 文件语言 | 英语 |
APPLICATIONS INFORMATION. Figure 3. Graphical Representation of Thermal Coefficients, Including JESD51-12 Terms
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LTM8078
APPLICATIONS INFORMATION
µModule DEVICE θJA JUNCTION-TO-AMBIENT RESISTANCE θJCtop JUNCTION-TO-CASE CASE (TOP)-TO-AMBIENT (TOP) RESISTANCE RESISTANCE JUNCTION AMBIENT θJCbot JUNCTION-TO-CASE CASE (BOTTOM)-TO-BOARD BOARD-TO-AMBIENT (BOTTOM) RESISTANCE RESISTANCE RESISTANCE 8078 F03
Figure 3. Graphical Representation of Thermal Coefficients, Including JESD51-12 Terms TYPICAL APPLICATION
VOUT1 VIN V LTM8078 V IN1 VOUT1 3.3V OUT3 7V TO 40V VIN1 1.4A VOUT1 1.2V LTM8078 RUN 22µF RUN 2.8A 78.7k 100µF 1µF 249k FB1 1µF FB1 24.9k 46.4k RT GND RT FB2 (1.2MHz) (700kHz) VOUT2 GND 5V OM OM VOUT2 OMC VOUT2 OMC BIAS BIAS 100µF 10µF 47.5k VIN2 FB2 VIN2 1µF 1µF 8078 F07 PINS NOT USED: TRSS1, TRSS2, PG1, PG2, CLKOUT, SYNC
Figure 4. Cascade Two LTM8078 to Produce 3.3V/1.4A, 1.2V/2.8A from 7V to 40VIN, Both BIAS Pins Are Connected to VOUT2
Rev. A For more information www.analog.com 21 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Package Description Revision History Package Photograph Related Parts
APPLICATIONS INFORMATION
µModule DEVICE θJA JUNCTION-TO-AMBIENT RESISTANCE θJCtop JUNCTION-TO-CASE CASE (TOP)-TO-AMBIENT (TOP) RESISTANCE RESISTANCE JUNCTION AMBIENT θJCbot JUNCTION-TO-CASE CASE (BOTTOM)-TO-BOARD BOARD-TO-AMBIENT (BOTTOM) RESISTANCE RESISTANCE RESISTANCE 8078 F03
Figure 3. Graphical Representation of Thermal Coefficients, Including JESD51-12 Terms TYPICAL APPLICATION
VOUT1 VIN V LTM8078 V IN1 VOUT1 3.3V OUT3 7V TO 40V VIN1 1.4A VOUT1 1.2V LTM8078 RUN 22µF RUN 2.8A 78.7k 100µF 1µF 249k FB1 1µF FB1 24.9k 46.4k RT GND RT FB2 (1.2MHz) (700kHz) VOUT2 GND 5V OM OM VOUT2 OMC VOUT2 OMC BIAS BIAS 100µF 10µF 47.5k VIN2 FB2 VIN2 1µF 1µF 8078 F07 PINS NOT USED: TRSS1, TRSS2, PG1, PG2, CLKOUT, SYNC
Figure 4. Cascade Two LTM8078 to Produce 3.3V/1.4A, 1.2V/2.8A from 7V to 40VIN, Both BIAS Pins Are Connected to VOUT2
Rev. A For more information www.analog.com 21 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Package Description Revision History Package Photograph Related Parts