MAX829EUK ON Semiconductor, MAX829EUK Datasheet - Page 16

• 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

constructed by incorporating combinations of the former circuits. The converter shown above combines Figures 24 and 36 to form
a negative output inverter with a positive output doubler. Different combinations of load regulation are shown below. In
Figures 52 and 53 the positive doubler has a constant I
and 55 the negative inverter has the constant I
All of the previously shown converter circuits have only single outputs. Applications requiring multiple outputs can be
−4.0
−4.5
−5.0
−4.0
−4.5
−5.0
9.5
9.0
8.5
9.5
9.0
8.5
0
0
I
Figure 52. Negative Inverter Load Regulation,
out
Negative Inverter
I
Figure 54. Positive Doubler Load Regulation,
Negative Inverter
Output Voltage vs. Output Current, MAX828
out
Output Voltage vs. Output Current, MAX828
, NEGATIVE INVERTER OUTPUT CURRENT (mA)
, POSITIVE DOUBLER OUTPUT CURRENT (mA)
10
10
Figure 56. Inverter Circuit Board Layout, Top View Copper Side
GND
Negative Inverter I
T
Negative Inverter R
T
V
A
A
in
= 25°C
= 25°C
Positive Doubler
I
Positive Doubler
R
out
out
20
20
= 15 mA
= 21.4 W
C
out
+
out
3
Inverter Size = 0.5 in x 0.2 in
out
Area = 0.10 in
= 15 mA and the positive doubler has the variable load.
= 15 mA
= 28.8 W
MAX828, MAX829
out
http://onsemi.com
IC1
= 15 mA while the negative inverter has the variable load. In Figures 54
0.5 ″
30
30
16
2
, 64.5 mm
C
+
1
−4.0
−4.5
−5.0
−4.0
−4.5
−5.0
9.5
9.0
8.5
9.5
9.0
8.5
0
0
2
I
Figure 53. Negative Inverter Load Regulation,
out
Negative Inverter
Negative Inverter
C
I
Figure 55. Positive Doubler Load Regulation,
Output Voltage vs. Output Current, MAX829
out
Output Voltage vs. Output Current, MAX829
+
2
, NEGATIVE INVERTER OUTPUT CURRENT (mA)
, POSITIVE DOUBLER OUTPUT CURRENT (mA)
10
10
−V
GND
out
Negative Inverter R
T
Negative Inverter I
T
A
A
= 25°C
= 25°C
Positive Doubler
I
Positive Doubler
R
out
out
20
20
= 15 mA
= 20 W
out
out
= 15 mA
= 28 W
30
30