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MC34700EPR2 Folha de dados(PDF) 3 Page - Freescale Semiconductor, Inc |
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MC34700EPR2 Folha de dados(HTML) 3 Page - Freescale Semiconductor, Inc |
3 / 31 page Analog Integrated Circuit Device Data Freescale Semiconductor 3 34700 PIN CONNECTIONS PIN CONNECTIONS Figure 3. 34700 Pin Connections Table 1. 34700 Pin Definitions Pin Number Pin Name Pin Function Formal Name Definition 1,32 VIN1 Power Input DC/DC1 Power Input Buck regulator #1 power input. VIN1 is connected to the drain of DC/ DC1’s high side MOSFET. 2,3 SW1 Power Output Switch 1 Output Buck regulator #1 switching node. SW1 is connected to the source of DC/ DC1’s high side MOSFET. 4 BST1 Input Bootstrap1 Bootstrap capacitor input for DC/DC1. 5 GND2 Power Ground Power Ground Buck regulator #2 power ground. GND2 is connected to the source of DC/ DC2’s low side MOSFET. 6 SW2 Power Output Switch 2 Output Buck regulator #2 switching node. SW2 is connected to the source of the high side MOSFET and the drain of the low side MOSFET. 7 VIN2 Power Input DC/DC2 Power Input Buck regulator #2 power input. VIN2 is connected to the drain of DC/ DC2’s high side MOSFET. 8 BST2 Input Bootstrap2 Bootstrap capacitor input for DC/DC2. 9 COMP2 Output DC/DC2 Compensation Output Buck regulator #2 compensation output. COMP2 is connected to the error amplifiers output. 10 FB2 Input DC/DC2 Feedback Input Buck regulator #2’s error amplifier inverting input. Connect the output voltage feedback resistor divider and compensation network to this pin. 11 EN1 Input Enable DC/DC1 Enables buck regulator #1. Asserting EN1 turns on DC/DC1. 12 EN2 Input Enable DC/DC2 Enables buck regulator #2. Asserting EN2 turns on DC/DC2. 13 EN3 Input Enable DC/DC3 Enables buck regulator #3. Asserting EN3 turns on DC/DC3. 14 EN_LDO Input Enable LDO Enables the LDO. Asserting EN_LDO turns on the LDO. 15 FB3 Input DC/DC3 Feedback Input Buck regulator #3’s error amplifier inverting input. Connect the output voltage feedback resistor divider and compensation network to this pin. VIN1 SW1 SW1 BST1 GND2 SW2 VIN2 BST2 BST3 VIN3 SW3 LDO_FB LDO LDO_VIN VIN GND3 TRANSPARENT TOP VIEW 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 27 19 20 21 22 23 24 25 26 28 29 30 31 32 PIN 33 |
Nº de peça semelhante - MC34700EPR2 |
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Descrição semelhante - MC34700EPR2 |
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