Datasheet ADP2102 (Analog Devices) - 3

Data Sheet ADP2102 SPECIFICATIONS
VIN = 3.6 V, EN = VIN, MODE = VIN, TA = 25°C, unless otherwise noted.
Bold values
indicate −40°C ≤ TA ≤ +85°C.1
Table 1. Parameter Test Conditions/Comments Min Typ Max Unit
INPUT CHARACTERISTICS Input Voltage Range2 2.7 5.5 V Undervoltage Lockout Threshold VIN rising 2.2 2.4 2.5 V Undervoltage Lockout Hysteresis 220 mV OUTPUT CHARACTERISTICS Output Voltage Range ADP2102 fixed output voltage options 1.2 1.375 V Output Voltage Range ADP2102 adjustable output voltage options 1.5 3.3 V Output Voltage Initial Accuracy ADP2102 fixed output voltage options, TA= 25°C, ILOAD = 0 mA
−1 +1
% ADP2102 fixed output voltage options, −40°C ≤TA ≤ 85°C,
−2 +2
% ILOAD = 0 mA Load Regulation VOUT = 1.2 V to 1.375 V, ILOAD = 0 mA to 600 mA 0.5 % Line Regulation VIN = 2.7 V to 5.5 V, ILOAD = 10 mA 0.3 % FEEDBACK CHARACTERISTICS FB Regulation Voltage ADP2102 adjustable output voltage options
784
800
816
mV FB Bias Current ADP2102 adjustable output voltage options
50
nA FB Impedance ADP2102 fixed output voltage options 375 kΩ CURRENT CHARACTERISTICS Operating Current ADP2102 PSM mode, ILOAD = 0 mA 70
99
μA Shutdown Current EN = 0 V 0.01
1
μA Output Current ADP2102, VIN = 2.7 V to 5.5 V 600 mA LX (SWITCH NODE) CHARACTERISTICS LX On Resistance P-channel switch, ILX = 100 mA

325
600
mΩ N-channel synchronous rectifier, ILX = 100 mA

200
400
mΩ LX Leakage Current VIN = 5.5 V, VLX = 0 V, 5.5 V
1
μA LX Minimum Off Time ADP2102 fixed output voltage options, ADP2102 adjustable output 100 ns voltage options LX On Time 1.2 V fixed output voltage
100
131
160
ns 1.375 V fixed output voltage
135
165
195
ns ADP2102-3, VOUT = 1.5 V
155
177
210
ns ADP2102-3, VOUT = 1.875 V
200
226
275
ns ADP2102-4, VOUT = 3.3 V (VIN = 5 V)
198
238
270
ns Valley Current Limit 1 A ENABLE, MODE CHARACTERISTICS EN, MODE Input High Threshold
1.3
V EN, MODE Input Low Threshold
0.4
V EN, MODE Input Leakage Current VIN = 5.5 V, EN = MODE = 0 V, 5.5 V
1
μA SOFT START PERIOD
250
500
800
μs THERMAL CHARACTERISTICS Thermal Shutdown Threshold 150 °C Thermal Shutdown Hysteresis 15 °C 1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC). 2 The input voltage (VIN) range over which the rest of the specifications are valid. The device operates as expected until VIN goes below the UVLO threshold. Rev. C | Page 3 of 24 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE BOUNDARY CONDITION ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CONTROL SCHEME CONSTANT ON-TIME TIMER FORCED CONTINUOUS CONDUCTION MODE POWER SAVE MODE SYNCHRONOUS RECTIFICATION CURRENT LIMIT SOFT START ENABLE UNDERVOLTAGE LOCKOUT THERMAL SHUTDOWN APPLICATIONS INFORMATION INDUCTOR SELECTION INPUT CAPACITOR SELECTION OUTPUT CAPACITOR SELECTION TYPICAL APPLICATION CIRCUITS SETTING THE OUTPUT VOLTAGE EFFICIENCY CONSIDERATIONS Power Switch Conduction Losses Inductor Losses Switching Losses Transition Losses THERMAL CONSIDERATIONS DESIGN EXAMPLE Inductor Output Capacitor Input Capacitor Losses CIRCUIT BOARD LAYOUT RECOMMENDATIONS RECOMMENDED LAYOUT OUTLINE DIMENSIONS ORDERING GUIDE