MAX828EUK-T Maxim Integrated Products, MAX828EUK-T Datasheet - Page 4

• Manufacturer Part Number: MAX828EUK-T
• Description: Charge Pumps Switched-Capacitor Voltage Inverter
• Manufacturer: Maxim Integrated Products

Specifications of MAX828EUK-T

• Function: Inverting
• Output Voltage: - 1.5 V to - 5.5 V
• Output Current: 25 mA
• Maximum Operating Temperature: + 85 C
• Package / Case: SOT-23-5
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT

_____________________Pin Description
Switched-Capacitor Voltage Inverters
(Circuit of Figure 1, V
4
PIN
1
_______________________________________________________________________________________
2
3
4
5
20mV/div
-0.5
-1.5
-2.5
-3.5
-4.5
-5.5
NAME
V
0.5
GND
OUT
OUT
C1+
V
C1-
IN
IN
= 3.3V, V
0
5
IN
V
OUTPUT NOISE AND RIPPLE
IN
OUT
10
Inverting Charge-Pump Output
Positive Power-Supply Input
Flying Capacitor’s Negative Terminal
Ground
Flying Capacitor’s Positive Terminal
= +5V, C1 = C2 = C3, T
= 2.0V
vs. OUTPUT CURRENT
OUTPUT CURRENT (mA)
= -3.2V, I
OUTPUT VOLTAGE
15
V
20
MAX828
IN
20µs/div
= 3.3V
OUT
25
= 5mA, AC COUPLED
30
FUNCTION
V
IN
35
= 5.0V
40
45 50
A
Typical Operating Characteristics (continued)
= +25°C, unless otherwise noted.)
Figure 1. Test Circuit
*10µF
(MAX828)
20mV/div
V
100
OUT
V
90
80
70
60
50
40
30
20
10
0
IN
1
2
3
= 3.3V, V
VOLTAGE INVERTER
0
C1-
OUT
IN
EFFICIENCY vs. OUTPUT CURRENT
V
5
MAX828
MAX829
IN
OUTPUT NOISE AND RIPPLE
= 2.0V
OUT
10
OUTPUT CURRENT (mA)
= -3.2V, I
15
3.3µF*
GND
C1+
20
MAX829
C3
10µs/div
5
4
V
OUT
25
IN
= 3.3V
= 5mA, AC COUPLED
30
C2
3.3µF*
35
V
IN
40
= 5.0V
C1
3.3µF*
45
R
V
V
L
IN
OUT
50