MAX829EUK ON Semiconductor, MAX829EUK Datasheet - Page 15

• Manufacturer Part Number: MAX829EUK
• Description: IC INVERTER CHARGE PUMP SOT23-5
• Manufacturer: ON Semiconductor
• Type: Switched Capacitor (Charge Pump), Doubler, Invertingr

Specifications of MAX829EUK

• 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: 19kHz ~ 54kHz
• 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: Contains lead / RoHS non-compliant
• Other names: MAX829EUKOS

500 mA. This is accomplished with the addition of two external switch transistors and two Schottky diodes. The output voltage
is approximately equal to 2V
diodes. The performance characteristics for the converter are shown below. Note that the output resistance is reduced to 1.8 W.
The MAX828/829 can be configured to produce a positive output voltage doubler with current capability in excess of
8.8
8.4
8.0
7.6
7.2
6.8
0
Boosted Load Regulation, Output Voltage vs.
Figure 49. Positive Doubler with Current
0.1
V
I
out
in
Output Current, MAX828
, OUTPUT CURRENT (mA)
Figure 48. Positive Output Voltage Doubler with High Current Capability
0.2
V
in
+
in
C
minus the sum of the base emitter drops of both transistors and the forward voltage of both
0.3
3
Figure 51. A Positive Doubler, with a Negative Inverter
+
1
2
3
0.4
OSC
V
R
T
1
2
3
A
in
out
= 25°C
= 5.0 V
= 1.8 W
0.5
MAX828, MAX829
OSC
http://onsemi.com
5
4
0.6
15
5
4
50
50
9.0
8.6
8.2
7.8
7.4
7.0
Capacitors = 220 mF
Q
Q
+
0
1
2
= PZT751
= PZT651
Boosted Load Regulation, Output Voltage vs.
Q
Q
2
1
Figure 50. Positive Doubler with Current
C
0.1
+
+
1
+
I
out
−V
Output Current, MAX829
, OUTPUT CURRENT (mA)
out
0.2
MAX828: Capacitors = 10 mF
MAX829: Capacitors = 3.3 mF
+
+
C
0.3
+V
2
out
V
out
0.4
V
R
T
A
in
out
= 25°C
= 5.0 V
= 1.8 W
0.5
0.6