Datasheet ADP2300, ADP2301 (Analog Devices) - 10

ADP2300/ADP2301 Data Sheet V V OUT OUT 1 IL IOUT 1 4 EN SW 4 SW 3 2 2
058
CH1 1V B B
026
W CH2 10V W M100µs A CH3 8V CH1 50mV B B W CH2 10V W M100µs A CH4 630mA CH3 10V B B W CH4 500mA Ω W B
08342- 08342-
CH4 500mA Ω W
Figure 28. Soft Start with 1 A Resistance Load, fSW = 1.4 MHz Figure 31. ADP2301 Load Transient, 0.2 A to 1.0 A, VOUT = 3.3 V, VIN = 12 V (fSW = 1.4 MHz, L = 4.7 µH, COUT = 22 µF)
VOUT VOUT 1 1 IOUT IL 4 EN 4 SW SW 3 2 2 CH1 1V B B
027 059
B B W CH2 10V W M100µs A CH3 8V CH1 200mV W CH2 10V W M100µs A CH4 630mA CH3 10V B B B W CH4 500mA Ω W CH4 500mA Ω
08342-
W
08342- Figure 29. Soft Start with No Load, f Figure 32. ADP2300 Load Transient, 0.2 A to 1.0 A, V SW = 1.4 MHz OUT = 5.0 V, VIN = 12 V (fSW = 700 kHz, L = 10 µH, COUT = 22 µF)
V V OUT OUT 1 1 IOUT IOUT 4 SW 4 SW 2 2
060 057
CH1 100mV B B B B W CH2 10V W M100µs A CH4 580mA CH1 100mV W CH2 10V W M100µs A CH4 630mA CH4 500mA Ω B 500mA Ω B W CH4
08342- 08342-
W
Figure 30. ADP2301 Load Transient, 0.2 A to 1.0 A, VOUT = 5.0 V, VIN = 12 V Figure 33. ADP2300 Load Transient, 0.2 A to 1.0 A, VOUT = 3.3 V, VIN = 12 V (fSW = 1.4 MHz, L = 4.7 µH, COUT = 10 µF) (fSW = 700 kHz, L = 10 µH, COUT = 22 µF) Rev. C | Page 10 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