Datasheet LTC7130 (Analog Devices) - 9
| 制造商 | Analog Devices |
| 描述 | 20V 20A Monolithic Buck Converter with Ultralow DCR Sensing |
| 页数 / 页 | 36 / 9 — PIN FUNCTIONS. SVIN (D5):. PGOOD (C7):. VIN (E4, E5, E6, E7, F4, F5, F6, … |
| 文件格式/大小 | PDF / 1.5 Mb |
| 文件语言 | 英语 |
PIN FUNCTIONS. SVIN (D5):. PGOOD (C7):. VIN (E4, E5, E6, E7, F4, F5, F6, F7, G7):. MODE/PLLIN (C6):. EXTV. CC (D7):
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文件文字版本
LTC7130
PIN FUNCTIONS SVIN (D5):
Main Input Supply. Decouple this pin to PGND
PGOOD (C7):
Power Good Indicator Output. Open-drain with a capacitor (0.1μF to 1μF). For applications where logic out that is pulled to ground when the output exceeds the main input power is 5V, tie the SVIN and INTVCC pins the 10% regulation window, after the internal 20μs power together. bad mask timer expires.
VIN (E4, E5, E6, E7, F4, F5, F6, F7, G7):
Main Input
MODE/PLLIN (C6):
Mode Operation or External Clock Supply. These pins connect to the drain of the internal Synchronization. Connect this pin to SGND to set the power MOSFETs. Decouple this pin to GND with the input continuous mode of operation. Connect to INTVCC to en- capacitance CIN. able pulse-skipping mode of operation. Leaving the pin
EXTV
floating will enable Burst Mode operation. A clock signal
CC (D7):
External Supply Voltage Input. Whenever an external voltage supply greater than 4.7V is connected applied to the pin will force the controller into continuous to this pin, an internal switch will close and bypass the mode of operation and synchronizes the internal oscillator. internal low dropout regulator, and the external supply will
SGND (B3, B4, C4, C5):
Signal Ground. This is the ground power the IC. Do not exceed 6V on this pin and ensure of the controller. Connect compensation components and VIN > VEXTVCC at all times. output setting resistors to this ground.
ITEMP (D6):
Temperature DCR Compensation Input. Con-
NC (A1, A7):
Do not connect. These pins are not connected nect to a NTC (negative tempco) resistor placed near the to anything internally. output inductor to compensate for its DCR change over temperature. Floating this pin or tying it to INTVCC disables the DCR temperature compensation function. 7130fb For more information www.linear.com/LTC7130 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Functional Block Diagram Operation Applications Information Typical Application Related Parts .34579 Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Pin Functions Functional Block Diagram Operation Applications Information Typical Applications Typical Application Related Parts
PIN FUNCTIONS SVIN (D5):
Main Input Supply. Decouple this pin to PGND
PGOOD (C7):
Power Good Indicator Output. Open-drain with a capacitor (0.1μF to 1μF). For applications where logic out that is pulled to ground when the output exceeds the main input power is 5V, tie the SVIN and INTVCC pins the 10% regulation window, after the internal 20μs power together. bad mask timer expires.
VIN (E4, E5, E6, E7, F4, F5, F6, F7, G7):
Main Input
MODE/PLLIN (C6):
Mode Operation or External Clock Supply. These pins connect to the drain of the internal Synchronization. Connect this pin to SGND to set the power MOSFETs. Decouple this pin to GND with the input continuous mode of operation. Connect to INTVCC to en- capacitance CIN. able pulse-skipping mode of operation. Leaving the pin
EXTV
floating will enable Burst Mode operation. A clock signal
CC (D7):
External Supply Voltage Input. Whenever an external voltage supply greater than 4.7V is connected applied to the pin will force the controller into continuous to this pin, an internal switch will close and bypass the mode of operation and synchronizes the internal oscillator. internal low dropout regulator, and the external supply will
SGND (B3, B4, C4, C5):
Signal Ground. This is the ground power the IC. Do not exceed 6V on this pin and ensure of the controller. Connect compensation components and VIN > VEXTVCC at all times. output setting resistors to this ground.
ITEMP (D6):
Temperature DCR Compensation Input. Con-
NC (A1, A7):
Do not connect. These pins are not connected nect to a NTC (negative tempco) resistor placed near the to anything internally. output inductor to compensate for its DCR change over temperature. Floating this pin or tying it to INTVCC disables the DCR temperature compensation function. 7130fb For more information www.linear.com/LTC7130 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Functional Block Diagram Operation Applications Information Typical Application Related Parts .34579 Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Pin Functions Functional Block Diagram Operation Applications Information Typical Applications Typical Application Related Parts