Datasheet ADP2230 (Analog Devices) - 3

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Data Sheet ADP2230 SPECIFICATIONS
VIN = VENx = 5.0 V, VOUT = 3.3 V, TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted. All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).
Table 1. Parameter Symbol Test Conditions/Comments Min Typ Max Unit
SUPPLY Input Voltage Range VIN 2.3 6.5 V Quiescent Current IQ VSYNC = GND, no load, device not switching One channel enabled 8 23 μA Both channels enabled 15 34 μA Standby Current VENx = 1 V 55 μA Shutdown Current ISD VENx = GND, TJ = −40°C to +85°C 0.1 2.5 μA Undervoltage Lockout VIN Rising Threshold 2.23 2.28 V VIN Falling Threshold 1.96 2.05 V Soft Start Time tSS 185 270 395 μs FIXED AND ADJUSTABLE OUTPUT Load Regulation PWM ∆VOUT/∆IOUT IOUT = 0 mA to 800 mA 0.1 %/A Line Regulation ∆VOUT/∆VIN VIN = 2.3 V to 6.5 V, VOUT = 1.2 V, IOUT = 500 mA 0.1 %/V PSM Rising Threshold VIN = 5 V, VOUT = 3.3 V 230 mA PSM Hysteresis 25 mA FIXED OUTPUT VOLTAGE Fixed VOUT Accuracy VIN = 5 V, no load VOUT = 1.2 V VOUT_1.2V 1.168 1.2 1.220 V VOUT = 1.8 V VOUT_1.8V 1.748 1.8 1.851 V VOUT = 3.3 V VOUT_3.3V 3.202 3.3 3.363 V Fixed VOUT FB Pin Current1 IFB_FIXED VFB = 1.2 V 1.1 2.0 2.8 μA ADJUSTABLE OUTPUT VOLTAGE Feedback Voltage VFB 0.774 0.8 0.818 V Adjustable VOUT Range VOUT_ADJ 0.8 6 V Adjustable VOUT FB Pin Current IFB_ADJ VFB = 0.8 V 10 150 nA SWITCHING CHARACERISTICS On Resistance VIN = 5 V, ISW = 400 mA P-Channel RDSON_P 230 325 mΩ N-Channel RDSON_N 180 275 mΩ Current Limit P-Channel 930 1300 1475 mA N-Channel 300 500 625 mA P-Channel Leakage Current VIN = 5 V, VSW = GND, TJ = −40°C to +85°C 2 μA Minimum On Time tON-MIN 3 35 65 ns SWx Node Discharge Resistor 250 340 Ω Phase Shift Between SW1 and SW2 VSYNC = GND or VSYNC = VIN (no external clock) 180 Degrees OSCILLATOR Fixed PWM Oscillator Frequency fSW_FIXED VSYNC = GND or VSYNC = VIN 1600 2000 2300 kHz External Clock Synchronization fSW_RANGE 1.5 2.5 MHz Range External Clock Duty Cycle Range 20 85 % SYNC Pin High Threshold 1.3 V Low Threshold 0.4 V Leakage Current VSYNC = GND or VSYNC = VIN 0.01 1 μA Rev. A | Page 3 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