Datasheet ADP2108 (Analog Devices) - 3

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Data Sheet ADP2108 SPECIFICATIONS
VIN = 3.6 V, VOUT = 1.8 V, TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted.1
Table 1. Parameter Test Conditions/Comments Min Typ Max Unit
INPUT CHARACTERISTICS Input Voltage Range 2.3 5.5 V Undervoltage Lockout Threshold VIN rising 2.3 V VIN falling 2.05 2.15 2.25 V OUTPUT CHARACTERISTICS Output Voltage Accuracy PWM mode −2 +2 % VIN = 2.3 V to 5.5 V, PWM mode −2.5 +2.5 % POWER SAVE MODE TO PWM CURRENT THRESHOLD 85 mA PWM TO POWER SAVE MODE CURRENT THRESHOLD 80 mA INPUT CURRENT CHARACTERISTICS DC Operating Current ILOAD = 0 mA, device not switching 18 30 µA Shutdown Current EN = 0 V, TA = TJ = −40°C to +125°C 0.2 1.0 µA SW CHARACTERISTICS SW On Resistance (WLCSP) PFET 320 mΩ NFET 300 mΩ SW On Resistance (TSOT) PFET 380 mΩ NFET 260 mΩ Current Limit PFET switch peak current limit 1100 1300 1500 mA ENABLE CHARACTERISTICS EN Input High Threshold 1.2 V EN Input Low Threshold 0.4 V EN Input Leakage Current EN = 0 V, 3.6 V −1 0 +1 µA OSCILLATOR FREQUENCY ILOAD = 200 mA 2.5 3.0 3.5 MHz START-UP TIME 550 µs THERMAL CHARACTERISTICS Thermal Shutdown Threshold 150 °C Thermal Shutdown Hysteresis 20 °C 1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). Rev. H | Page 3 of 20 Document Outline Features Applications General Description Typical Applications Circuit Table of Contents Revision History Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme PWM Mode Power Save Mode Power Save Mode Current Threshold Enable/Shutdown Short-Circuit Protection Undervoltage Lockout Thermal Protection Soft Start Current Limit 100% Duty Operation Applications Information ADIsimPower Design Tool External Component Selection Inductor Output Capacitor Input Capacitor Thermal Considerations PCB Layout Guidelines Evaluation Board Outline Dimensions Ordering Guide