Datasheet ADP5301 (Analog Devices) - 4

ADP5301 Data Sheet SPECIFICATIONS
VIN = 3.6 V, VOUT = 2.5 V, TJ = −40°C to +125°C for minimum and maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted.
Table 1. Parameter Symbol Min Typ Max Unit Test Conditions/Comments
INPUT SUPPLY VOLTAGE RANGE VIN 2.15 6.50 V SHUTDOWN CURRENT ISHUTDOWN 18 40 nA VEN = 0 V, −40°C ≤ TJ ≤ +85°C 18 130 nA VEN = 0 V, −40°C ≤ TJ ≤ +125°C QUIESCENT CURRENT Operating Quiescent Current in Hysteresis Mode IQ_HYS 180 260 nA −40°C ≤ TJ ≤ +85°C 180 350 nA −40°C ≤ TJ ≤ +125°C 570 1400 nA 100% duty cycle operation, VIN = 3.0 V, VOUT set to 3.3 V Operating Quiescent Current in PWM Mode IQ_PWM 425 630 μA UNDERVOLTAGE LOCKOUT UVLO UVLO Threshold Rising VUVLO_RISING 2.06 2.14 V Falling VUVLO_FALLING 1.90 2.00 V OSCILLATOR CIRCUIT Switching Frequency in PWM Mode fSW 1.7 2.0 2.3 MHz FB Threshold of Frequency Fold VOSC_FOLD 0.3 V SYNCHRONIZATION THRESHOLD SYNC Clock Range SYNCCLOCK 1.5 2.5 MHz SYNC High Level Threshold SYNCHIGH 1.2 V SYNC Low Level Threshold SYNCLOW 0.4 V SYNC Duty Cycle Range SYNCDUTY 100 1/fSW − ns 150 SYNC/MODE Leakage Current ISYNC_LEAKAGE 50 150 nA VSYNC/MODE = 3.6 V MODE TRANSITION Transition Delay from Hysteresis Mode to tHYS_TO_PWM 20 Clock SYNC/MODE goes logic high from PWM Mode cycles logic low EN PIN Input Voltage Threshold High VIH 1.2 V Low VIL 0.4 V Input Leakage Current IEN_LEAKAGE 25 nA FB PIN Output Options by VID Resistor VOUT_OPT 0.8 5.0 V 0.8 V to 5.0 V in various factory options PWM Mode Fixed VID Code Voltage Accuracy VFB_PWM_FIX −0.6 +0.6 % TJ = 25°C, output voltage setting via factory fuse −1.2 +1.2 % −40°C ≤ TJ ≤ +125°C Adjustable VID Code Voltage Accuracy VFB_PWM_ADJ −1.5 +1.5 % Output voltage setting via VID resistor Hysteresis Mode Fixed VID Code Threshold Accuracy from VFB_HYS_FIX −0.75 +0.75 % TJ = 25°C Active Mode to Standby Mode −2.5 +2.5 % −40°C ≤ TJ ≤ +125°C Adjustable VID Code Threshold Accuracy VFB_HYS_ADJ −3 +3 % −40°C ≤ TJ ≤ +125°C from Active Mode to Standby Mode Hysteresis of Threshold Accuracy from VFB_HYS (HYS) 1 % Active Mode to Standby Mode Feedback Bias Current IFB 66 95 nA Output Option 0, VOUT = 2.5 V 25 45 nA Output Option 1, VOUT = 1.3 V Rev. B | Page 4 of 21 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION REVISION HISTORY FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION BUCK REGULATOR OPERATION MODES PWM Mode Hysteresis Mode Mode Selection OSCILLATOR AND SYNCHRONIZATION ADJUSTABLE AND FIXED OUTPUT VOLTAGES UNDERVOLTAGE LOCKOUT (UVLO) ENABLE/DISABLE CURRENT LIMIT SHORT-CIRCUIT PROTECTION SOFT START STARTUP WITH A PRECHARGED OUTPUT 100% DUTY CYCLE OPERATION ACTIVE DISCHARGE VOUTOK FUNCTION THERMAL SHUTDOWN APPLICATIONS INFORMATION EXTERNAL COMPONENT SELECTION SELECTING THE INDUCTOR OUTPUT CAPACITOR INPUT CAPACITOR EFFICIENCY Power Switch Conduction Losses Inductor Losses Driver Losses Transition Losses PRINTED CIRCUIT BOARD (PCB) LAYOUT RECOMMENDATIONS TYPICAL APPLICATION CIRCUITS FACTORY PROGRAMMABLE OPTIONS OUTLINE DIMENSIONS ORDERING GUIDE