ADP1111 Analog Devices, ADP1111 Datasheet - Page 4

• Manufacturer Part Number: ADP1111
• Description: Micropower, Step-Up/Step-Down SW Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V
• Manufacturer: Analog Devices

ADP1111–Typical Characteristics
Figure 3. Switch ON Voltage vs. I
Step-Down Mode
Figure 2. Saturation Voltage vs. I
Step-Up Mode
Figure 4. Quiescent Current vs. Input Voltage
1.4
1.2
1.0
0.8
0.6
0.4
0.2
1400
1200
1000
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
200
800
600
400
0
0
0.1
0.1
0
1.5
V
IN
3
0.2
= 12V
0.2
6
V
IN
= 5V
0.4
9
I
SWITCH
I
SWITCH
INPUT VOLTAGE – V
0.4
12
V
IN
CURRENT – A
CURRENT – A
0.6
= 2V
15
QUIESCENT CURRENT
0.6
18
0.8
SWITCH
SWITCH
V
IN
21
= 3V
0.8
1.0
24
Current In
Current in
27
0.9
1.2
30
–4–
Figure 5. Oscillator Frequency vs. Input Voltage
Figure 7. Oscillator Frequency vs. Temperature
Figure 6. Maximum Switch Current vs. R
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
0.3
0.1
76
75
74
73
72
71
70
69
68
67
80
78
76
74
72
70
68
66
64
62
60
–40
2
1
4
6
OSCILLATOR FREQUENCY
0
8
10
OSCILLATOR FREQUENCY
INPUT VOLTAGE – V
STEP-UP WITH
2V < V
10
TEMPERATURE – C
R
12
IN
LIM
< 5V
25
– Ω
15
18
STEP-DOWN WITH
V
100
IN
= 12V
21
70
24
27
LIM
1000
30
85
REV. 0