MAX828EUKG ON Semiconductor, MAX828EUKG Datasheet - Page 13

• Manufacturer Part Number: MAX828EUKG
• Description: IC INVERTER CHARGE PUMP SOT23-5
• Manufacturer: ON Semiconductor
• Type: Switched Capacitor (Charge Pump), Doubler, Invertingr

Specifications of MAX828EUKG

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: -1.15 ~ -5.5 V, 2.3 ~ 11 V
• Current - Output: 50mA
• Frequency - Switching: 6kHz ~ 21kHz
• Voltage - Input: 1.15 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Power - Output: 313mW
• Function: Inverting
• Output Voltage: - 5.5 V to - 1.15 V
• Output Current: 100 mA
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MAX828EUKGOS; MAX828EUKGOS; MAX828EUKGOSTR

or more devices. The output current capability is approximately equal to the number of devices paralleled. A single shared
output capacitor is sufficient for proper operation but each device does require it’s own pump capacitor. Note that the output
ripple frequency will be complex since the oscillators are not synchronized. The output resistance is approximately equal to
the output resistance of one device divided by the total number of devices paralleled. The performance characteristics for a
converter consisting of two paralleled devices is shown below.
An increase in converter output current capability with a reduction in output resistance can be obtained by paralleling two
−1.0
−2.0
−3.0
−4.0
−5.0
0
Figure 43. Parallel Load Regulation, Output
T
A
= 25°C
Voltage vs. Output Current MAX828
V
in
20
I
out
+
, OUTPUT CURRENT (mA)
Figure 42. Paralleling Devices for Increased Negative Output Current
40
B
1
2
3
Curve
60
C
D
A
A
B
OSC
+
V
in
3.0
3.0
5.0
5.0
80
MAX829 Capacitors = 3.3 mF
MAX828 Capacitors = 10 mF
(V)
MAX828, MAX829
http://onsemi.com
5
4
MBRA120E
MBRA120E
1N4148
1N4148
100
Diodes
13
−1.0
−2.0
−3.0
−4.0
−5.0
1
2
3
0
MAX828
R
out
96.5
84.5
78.2
110
Figure 44. Parallel Load Regulation, Output
T
A
(W)
OSC
= 25°C
Voltage vs. Output Current MAX829
+
20
MAX829
R
I
out
out
96.7
87.3
77.1
111
D
, OUTPUT CURRENT (mA)
(W)
5
4
40
C
+
60
−V
out
80
100