Datasheet ADP2323 (Analog Devices) - 10

ADP2323 Data Sheet 4.5 1.30 4.4 RISING 1.25 4.3 ) RISING ) V V 4.2 D ( D ( 1.20 L L 4.1 HO HO S S 4.0 1.15 HRE HRE T T 3.9 E FALLING O L FALLING 1.10 3.8 UV NABL E 3.7 1.05 3.6 3.5 1.00
1 1
–40 –20 0 20 40 60 80 100 120
0
–40 –20 0 20 40 60 80 100 120
014
TEMPERATURE (°C) TEMPERATURE (°C)
09357- 09357- Figure 11. UVLO Threshold vs. Temperature Figure 14. EN Threshold vs. Temperature
1.10 5.10 1.08 5.05 1.06 5.00 A) A) µ µ ( 1.04 ( 4.95 NT NT 1.02 4.90 1.00 CURRE 4.85 CURRE 0.98 4.80 URCE URCE O O 0.96 4.75 N S N S E E 0.94 4.70 0.92 4.65 0.90 4.60 –40 –20 0 20 40 60 80 100 120
012
–40 –20 0 20 40 60 80 100 120
015
TEMPERATURE (°C) TEMPERATURE (°C)
09357- 09357- Figure 12. EN Source Current at VEN = 1.5 V Figure 15. EN Source Current at VEN = 1 V
606 350 340 604 330 ) S V) µ ( 320 602 E (m G A 310 ANCE T LT O 600 300 NDUC 290 CO 598 DBACK V E 280 E RANS F T 270 596 260 250 594 –40 –20 0 20 40 60 80 100 120
016 013
–40 –20 0 20 40 60 80 100 120 TEMPERATURE (°C) TEMPERATURE (°C)
09357- 09357- Figure 13. FB Voltage vs. Temperature Figure 16. gm vs. Temperature Rev. A | Page 10 of 32 Document Outline Features Applications Typical Application Circuit General Description Revision History Functional Block Diagram Specifications Absolute Maximum Ratings Thermal Resistance Boundary Condition ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme PWM Mode PFM Mode Precision Enable/Shutdown Separate Input Voltages Internal Regulator (INTVCC) Bootstrap Circuitry Low-Side Driver Oscillator Synchronization Soft Start Peak Current-Limit and Short-Circuit Protection Voltage Tracking Parallel Operation Power Good Overvoltage Protection Undervoltage Lockout Thermal Shutdown Applications Information ADIsimPower Design Tool Input Capacitor Selection Output Voltage Setting Voltage Conversion Limitations Current-Limit Setting Inductor Selection Output Capacitor Selection Low-Side Power Device Selection Programming UVLO Input Compensation Components Design Design Example Output Voltage Setting Current-Limit Setting Frequency Setting Inductor Selection Output Capacitor Selection Low-Side MOSFET Selection Compensation Components Soft Start Time Programming Input Capacitor Selection External Components Recommendation Typical Application Circuits Outline Dimensions Ordering Guide