Datasheet

Data Sheet ADP2108
Rev. G | Page 3 of 20
SPECIFICATIONS
V
IN
= 3.6 V, V
OUT
= 1.8 V, T
J
= −40°C to +125°C for minimum/maximum specifications, and T
A
= 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 V
IN
rising 2.3 V
V
IN
falling
2.05
2.15
2.25
V
OUTPUT CHARACTERISTICS
Output Voltage Accuracy
PWM mode
−2
+2
%
V
IN
= 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
I
LOAD
= 0 mA, device not switching
18
30
µA
Shutdown Current EN = 0 V, T
A
= T
J
= −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 I
LOAD
= 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).