Datasheet ADP2300, ADP2301 (Analog Devices) - 5
| Hersteller | Analog Devices |
| Beschreibung | 1.2 A, 20 V, 1.4 MHz non-synchronous step-down switching regulator |
| Seiten / Seite | 28 / 5 — Data Sheet. ADP2300/ADP2301. PIN CONFIGURATION AND FUNCTION DESCRIPTIONS. … |
| Revision | C |
| Dateiformat / Größe | PDF / 616 Kb |
| Dokumentensprache | Englisch |
Data Sheet. ADP2300/ADP2301. PIN CONFIGURATION AND FUNCTION DESCRIPTIONS. BST. ADP2300/ 6 SW. ADP2301. GND. VIN. TOP VIEW. (Not to Scale)
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Data Sheet ADP2300/ADP2301 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS BST 1 ADP2300/ 6 SW ADP2301 GND 2 5 VIN TOP VIEW (Not to Scale)
002
FB 3 4 EN
08342- Figure 3. Pin Configuration
Table 4. Pin Function Descriptions Pin No. Mnemonic Description
1 BST Boost Supply for the High-Side MOSFET Driver. A 0.1 µF capacitor is connected between the SW and BST pins to form a floating supply to drive the gate of the MOSFET switch above the V supply voltage. IN 2 GND Ground. Connect this pin to the ground plane. 3 FB Feedback Voltage Sense Input. Connect this pin to a resistive divider from V . Set the voltage to 0.8 V for a OUT desired V . OUT 4 EN Output Enable. Pull this pin high to enable the output. Pull this pin low to disable the output. This pin can also be used as a programmable UVLO input. This pin has a 1.2 µA pull-down current to GND. 5 VIN Power Input. Connect to the input power source with a ceramic bypass capacitor to GND directly from this pin. 6 SW Switch Node Output. Connect an inductor to V and a catch diode to GND from this pin. OUT Rev. C | Page 5 of 28 Document Outline Features Applications Typical Applications Circuit General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Functional Block Diagram Theory of Operation Basic Operation PWM Mode Power Saving Mode Bootstrap Circuitry Precision Enable Integrated Soft Start Current Limit Short-Circuit Protection Undervoltage Lockout (UVLO) Thermal Shutdown Control Loop Applications Information ADIsimPower Design Tool Programming the Output Voltage Voltage Conversion Limitations Low Input Voltage Considerations Programming the Precision Enable Inductor Catch Diode Input Capacitor Output Capacitor Thermal Considerations Design Example Switching Frequency Selection Catch Diode Selection Inductor Selection Output Capacitor Selection Resistive Voltage Divider Selection Circuit Board Layout Recommendations Typical Application Circuits Outline Dimensions Ordering Guide
002
FB 3 4 EN
08342- Figure 3. Pin Configuration
Table 4. Pin Function Descriptions Pin No. Mnemonic Description
1 BST Boost Supply for the High-Side MOSFET Driver. A 0.1 µF capacitor is connected between the SW and BST pins to form a floating supply to drive the gate of the MOSFET switch above the V supply voltage. IN 2 GND Ground. Connect this pin to the ground plane. 3 FB Feedback Voltage Sense Input. Connect this pin to a resistive divider from V . Set the voltage to 0.8 V for a OUT desired V . OUT 4 EN Output Enable. Pull this pin high to enable the output. Pull this pin low to disable the output. This pin can also be used as a programmable UVLO input. This pin has a 1.2 µA pull-down current to GND. 5 VIN Power Input. Connect to the input power source with a ceramic bypass capacitor to GND directly from this pin. 6 SW Switch Node Output. Connect an inductor to V and a catch diode to GND from this pin. OUT Rev. C | Page 5 of 28 Document Outline Features Applications Typical Applications Circuit General Description Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Functional Block Diagram Theory of Operation Basic Operation PWM Mode Power Saving Mode Bootstrap Circuitry Precision Enable Integrated Soft Start Current Limit Short-Circuit Protection Undervoltage Lockout (UVLO) Thermal Shutdown Control Loop Applications Information ADIsimPower Design Tool Programming the Output Voltage Voltage Conversion Limitations Low Input Voltage Considerations Programming the Precision Enable Inductor Catch Diode Input Capacitor Output Capacitor Thermal Considerations Design Example Switching Frequency Selection Catch Diode Selection Inductor Selection Output Capacitor Selection Resistive Voltage Divider Selection Circuit Board Layout Recommendations Typical Application Circuits Outline Dimensions Ordering Guide