Datasheet ADP2230 (Analog Devices) - 9

Data Sheet ADP2230 LOAD CURRENT (100mA/DIV) LOAD CURRENT (100mA/DIV) 4 4 OUTPUT VOLTAGE (50mV/DIV) AC-COUPLED OUTPUT VOLTAGE (100mV/DIV) AC-COUPLED 1 1
-028 -031
TIME (40µs/DIV) TIME (40µs/DIV)
10705 10705 Figure 15. Load Transient Response, VOUT = 1.2 V, Auto Mode, 50 mA to 250 mA Figure 18. Load Transient Response, VOUT = 1.8 V, Auto Mode, 50 mA to 250 mA
LOAD CURRENT (200mA/DIV) LOAD CURRENT (200mA/DIV) 4 4 OUTPUT VOLTAGE (50mV/DIV) AC-COUPLED OUTPUT VOLTAGE (100mV/DIV) AC-COUPLED 1 1
-032 -029
TIME (40µs/DIV) TIME (40µs/DIV)
10705 10705 Figure 16. Load Transient Response, V Figure 19. Load Transient Response, VOUT = 1.8 V, Auto Mode, 200 mA to 600 mA OUT = 1.2 V, Auto Mode, 200 mA to 600 mA
LOAD CURRENT (50mA/DIV) LOAD CURRENT (50mA/DIV) 4 4 OUTPUT VOLTAGE (50mV/DIV) AC-COUPLED OUTPUT VOLTAGE (50mV/DIV) AC-COUPLED 1 1
-033 -030
TIME (40µs/DIV) TIME (40µs/DIV)
10705 10705 Figure 17. Load Transient Response, V Figure 20. Load Transient Response, V OUT = 1.8 V, Auto Mode, 10 mA to 110 mA OUT = 3.3 V, Auto Mode, 10 mA to 110 mA Rev. A | Page 9 of 18 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS RECOMMENDED COMPONENT SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION OVERVIEW OPERATING CONDITIONS Input Voltage Output Voltage SYNC PIN CONTROL SCHEMES PWM Mode PSM/PWM Automatic Transitioning Mode External Clock Synchronization FEATURES DESCRIPTIONS Precision Enable Quick Output Discharge Output Short-Circuit Protection Undervoltage Lockout Thermal Shutdown Soft Start Current Limit 100% Duty Cycle APPLICATIONS INFORMATION SETTING THE OUTPUT VOLTAGE SELECTING THE INDUCTOR SELECTING THE INPUT AND OUTPUT CAPACITORS Input Capacitor Output Capacitor PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE