Datasheet

ADP2109 Data Sheet
Rev. B | Page 6 of 16
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= 3.6 V, T
A
= 25°C, V
EN
= V
IN
, unless otherwise noted.
12
14
16
18
20
22
24
2.5 3.0 3.5 4.0 4.5 5.0 5.5
07964-004
INPUT VOLTAGE (V)
QUIESCENT CURRENT (µA)
–40°C
+25°C
+85°C
Figure 3. Quiescent Supply Current vs. Input Voltage
2500
2600
2700
2800
2900
3000
3100
3200
3300
3400
3500
2.3 2.8 3.3 3.8 4.3 4.8 5.3
07964-005
INPUT VOLTAGE (V)
FREQUENCY (kHz)
–40°C
+25°C
+85°C
Figure 4. Switching Frequency vs. Input Voltage
1.795
1.800
1.805
1.810
1.815
1.820
1.825
1.830
1.835
1.840
–45 –25 –5 15 35 55 75
07964-006
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
I
OUT
= 10mA
I
OUT
= 150mA
I
OUT
= 500mA
Figure 5. Output Voltage vs. Temperature
600
700
800
900
1000
1100
1200
1300
1400
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3
4.5 4.7 4.9 5.1 5.3 5.5
07964-007
INPUT VOLTAGE (V)
CURRENT LIMIT (A)
Figure 6. PMOS Current Limit vs. Input Voltage
2.5 3.0 3.5 4.0 4.5 5.0 5.5
–40°C
07964-008
INPUT VOLTAGE (V)
OUTPUT CURRENT (A)
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.11
0.12
0.13
0.14
0.15
+85°C
PWM TO PSM PSM TO PWM
Figure 7. Mode Transition Across Temperature
2.5 3.0 3.5 4.0 4.5 5.0 5.5
07964-009
INPUT VOLTAGE (V)
OUTPUT CURRENT (A)
0.06
0.07
0.08
0.09
0.10
0.11
0.12
0.13
0.14
0.15
PWM TO PSM
PSM TO PWM
Figure 8. Mode Transition