ADM8828 Analog Devices, ADM8828 Datasheet - Page 3

• Manufacturer Part Number: ADM8828
• Description: Switched-Capacitor Voltage Inverter with Shutdown
• Manufacturer: Analog Devices

Specifications of ADM8828

• Input Voltage (v): 1.5 - 5.5
• Vout Preset (v): -Vin
• Iout: 25mA
• Vout #2 (v): n/a
• Iout #2 (µa): n/a
• Vout #3 (v): n/a
• Iout #3 (µa): n/a
• Power Efficiency (%): 99%
• Supply Current: 1mA
• Shutdown Current, Max: 2µA
• Package: 6-Lead SOT 23

REV. A
Figure 3. Output Source Resistance vs. Supply Voltage
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Figure 2. Power Supply Current vs. Voltage
35
30
25
20
15
10
20
18
16
14
12
10
0.47
0
5
0
8
6
4
2
0
1.5
Figure 4. Output Current vs. Capacitance
1
1.5
2
2.5
2
OUTPUT CURRENT @ V
OUTPUT CURRENT @ V
OUTPUT CURRENT @ V
SUPPLY VOLTAGE – V
SUPPLY VOLTAGE – V
2.5
1
CAPACITANCE – F
3
3
3.5
3.5
Typical Performance Characteristics–
4
IN
IN
IN
2.2
= 4.75V
= 3.15V
4
= 1.9V
4.5
4.5
5
5
5.5
3.3
5.5
–3–
Figure 5. Output Voltage Ripple vs. Capacitance
Figure 6. Output Voltage Ripple vs. Capacitance
–0.5
–1.5
–2.5
–3.5
–4.5
Figure 7. Output Voltage vs. Output Current
350
300
250
200
150
100
60
50
40
30
20
10
50
0.47
–1
–2
–3
–4
–5
0
0.47
0
0
0
OUTPUT VOLTAGE RIPPLE
@ V
OUTPUT VOLTAGE @ V
IN
5
= 1.9V, V
OUTPUT VOLTAGE RIPPLE
@ V
OUTPUT VOLTAGE RIPPLE
@ V
OUTPUT VOLTAGE @ V
10
IN
= 4.75V, V
OUTPUT VOLTAGE RIPPLE
@ V
OUT
IN
OUTPUT CURRENT – mA
OUTPUT VOLTAGE @ V
= 3.15V
CAPACITANCE – F
1
CAPACITANCE – F
IN
15
1
= –1.5V
= 4.75V
ADM8828/ADM8829
OUTPUT VOLTAGE RIPPLE
@ V
OUT
20
IN
IN
= –4.0V
= 5.0V
= 3.15V, V
OUTPUT VOLTAGE RIPPLE
@ V
25
IN
IN
= 1.9V
= 2.0V
2.2
2.2
OUT
30
IN
= 3.3V
= –2.5V
I
L
35
= 5mA
40
3.3
3.3
45