Datasheet

ADP2102
Rev. B | Page 3 of 24
SPECIFICATIONS
V
IN
= 3.6 V, EN = V
IN
, MODE = V
IN
, T
A
= 25°C, unless otherwise noted. Bold values indicate −40°C ≤ T
A
≤ +85°C.
1
Table 1.
Parameter Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Input Voltage Range
2
2.7 5.5 V
Undervoltage Lockout Threshold V
IN
rising 2.2 2.4 2.5 V
Undervoltage Lockout Hysteresis 220 mV
OUTPUT CHARACTERISTICS
Output Voltage Range ADP2102-xx 0.8 1.875 V
Output Voltage Range ADP2102-ADJ 0.8 3.3 V
Output Voltage Initial Accuracy ADP2102-xx, T
A
= 25°C, I
LOAD
= 0 mA
−1 +1
%
ADP2102-xx, −40°C ≤T
A
≤ 85°C, I
LOAD
= 0 mA
−2 +2
%
Load Regulation V
OUT
= 0.8 V to 1.875 V, I
LOAD
= 0 mA to 600 mA 0.5 %
Line Regulation V
IN
= 2.7 V to 5.5 V, I
LOAD
= 10 mA 0.3 %
FEEDBACK CHARACTERISTICS
FB Regulation Voltage ADP2102-ADJ
784
800
816
mV
FB Bias Current ADP2102-ADJ, ADP2102-0.8
50
nA
FB Impedance ADP2102-xx 375 kΩ
CURRENT CHARACTERISTICS
Operating Current ADP2102 PSM mode, I
LOAD
= 0 mA 70
99
µA
Shutdown Current EN = 0 V 0.01
1
µA
Output Current ADP2102, V
IN
= 2.7 V to 5.5 V 600 mA
LX (SWITCH NODE) CHARACTERISTICS
LX On Resistance P-channel switch, I
LX
= 100 mA 325
600
mΩ
N-channel synchronous rectifier, I
LX
= 100 mA 200
400
mΩ
LX Leakage Current V
IN
= 5.5 V, V
LX
= 0 V, 5.5 V
1
µA
LX Minimum Off-Time ADP2102-xx, ADP2102-ADJ 100 ns
LX On-Time ADP2102-0.8
55
87
105
ns
ADP2102-1.0
70
107
135
ns
ADP2102-1.2
100
131
160
ns
ADP2102-1.25
103
133
169
ns
ADP2102-1.375
135
165
195
ns
ADP2102-1.5
150
182
210
ns
ADP2102-1.8
180
220
260
ns
ADP2102-1.875
190
237
270
ns
ADP2102-ADJ-1.2
80
131
170
ns
ADP2102-ADJ-1.5
155
177
210
ns
ADP2102-ADJ-1.875
200
226
275
ns
ADP2102-ADJ-3.3 (V
IN
= 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 V
IN
= 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 (V
IN
) range over which the rest of the specifications are valid. The part operates as expected until V
IN
goes below the UVLO threshold.