Datasheet ADP5040 (Analog Devices) - 3

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Data Sheet ADP5040 SPECIFICATIONS GENERAL SPECIFICATIONS
AVIN, VIN1 = 2.3 V to 5.5 V; AVIN, VIN1 ≥VIN2, VIN3; VIN2, VIN3 = 1.7 V to 5.5 V, TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted.
Table 1. Parameter Symbol Description Min Typ Max Unit
AVIN UNDERVOLTAGE LOCKOUT UVLOAVIN Input Voltage Rising UVLOAVINRISE Option 0 2.275 V Option 1 3.9 V Input Voltage Falling UVLOAVINFALL Option 0 1.95 V Option 1 3.1 V SHUTDOWN CURRENT IGND-SD ENx = GND 0.1 2 μA Thermal Shutdown Threshold TSSD TJ rising 150 °C Thermal Shutdown Hysteresis TSSD-HYS 20 °C START-UP TIME1 BUCK tSTART1 250 μs LDO1, LDO2 tSTART2 VOUT2, VOUT3 = 3.3 V 85 μs Enx, MODE, INPUTS Input Logic High VIH 2.5 V ≤ AVIN ≤ 5.5 V 1.2 V Input Logic Low VIL 2.5 V ≤ AVIN ≤ 5.5 V 0.4 V Input Leakage Current VI-LEAKAGE ENx = AVIN or GND 0.05 1 μA 1 Start-up time is defined as the time from the moment EN1 = EN2 = EN3 transfers from 0 V to VAVIN to the moment VOUT1, VOUT2, and VOUT3 reach 90% of their nominal level. Start-up times are shorter for individual channels if another channel is already enabled. See the Typical Performance Characteristics section for more information.
BUCK SPECIFICATIONS
AVIN, VIN1 = 2.3 V to 5.5 V; VOUT1 = 1.8 V; L = 1 μH; CIN = 10 μF; COUT = 10 μF; TJ= −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted.1
Table 2. Parameter Symbol Test Conditions/Comments Min Typ Max Unit
INPUT CHARACTERISTICS Input Voltage Range VIN1 2.3 5.5 V OUTPUT CHARACTERISTICS Output Voltage Accuracy VOUT1 PWM mode, −3 +3 % ILOAD = 0 mA to 1200 mA Line Regulation (ΔVOUT1/VOUT1)/ΔVIN1 PWM mode −0.05 %/V Load Regulation (ΔVOUT1/VOUT1)/ΔIOUT1 ILOAD = mA to 1200 mA, PWM mode −0.1 %/A VOLTAGE FEEDBACK VFB1 0.485 0.5 0.515 V PWM TO POWER SAVE MODE IPSM_L 100 mA CURRENT THRESHOLD INPUT CURRENT CHARACTERISTICS MODE = ground DC Operating Current INOLOAD ILOAD = 0 mA, device not switching, all other 21 35 μA channels disabled Shutdown Current ISHTD EN1 = 0 V, TA = TJ = −40°C to +125°C 0.2 1.0 μA Rev. D | Page 3 of 37 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS GENERAL SPECIFICATIONS BUCK SPECIFICATIONS LDO1, LDO2 SPECIFICATIONS INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION POWER MANAGEMENT UNIT Thermal Protection Undervoltage Lockout Enable/Shutdown Active Pull-Down BUCK SECTION Control Scheme PWM Mode Power Save Mode (PSM) PSM Current Threshold Short-Circuit Protection Soft Start Current Limit 100% Duty Operation LDO SECTION APPLICATIONS INFORMATION BUCK EXTERNAL COMPONENT SELECTION Feedback Resistors Inductor Output Capacitor Input Capacitor LDO EXTERNAL COMPONENT SELECTION Feedback Resistors Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties POWER DISSIPATION/THERMAL CONSIDERATIONS Buck Regulator Power Dissipation LDO Regulator Power Dissipation Junction Temperature APPLICATION DIAGRAM PCB LAYOUT GUIDELINES SUGGESTED LAYOUT BILL OF MATERIALS FACTORY PROGRAMMABLE OPTIONS OUTLINE DIMENSIONS ORDERING GUIDE