MAX829EUK ON Semiconductor, MAX829EUK Datasheet - Page 14
![IC INVERTER CHARGE PUMP SOT23-5](/photos/16/14/161452/sot23_5_sml.jpg)
MAX829EUK
Manufacturer Part Number
MAX829EUK
Description
IC INVERTER CHARGE PUMP SOT23-5
Manufacturer
ON Semiconductor
Type
Switched Capacitor (Charge Pump), Doubler, Invertingr
Datasheet
1.MAX829EUK.pdf
(17 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MAX829EUK
Manufacturer:
MAXIM
Quantity:
5 321
Company:
Part Number:
MAX829EUK
Manufacturer:
MAX
Quantity:
356
Company:
Part Number:
MAX829EUK+T
Manufacturer:
Intersil
Quantity:
230
Company:
Part Number:
MAX829EUK+T
Manufacturer:
MAXIN
Quantity:
10
Part Number:
MAX829EUK+T
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX829EUKG
Manufacturer:
ON/安森美
Quantity:
20 000
external switch transistors and two Schottky diodes. The output voltage is approximately equal to −V
base emitter drops of both transistors and the forward voltage of both diodes. The performance characteristics for the converter
are shown below. Note that the output resistance is reduced to 0.9 and 1.0 ohms for the 828 and 829 respectively.
The output current capability of the MAX828 and MAX829 can be extended beyond 600 mA with the addition of two
−2.4
−2.6
−2.8
−3.0
−3.2
−2.2
0
Figure 46. Current Boosted Load Regulation,
Output Voltage vs. Output Current MAX828
0.1
I
out
V
, OUTPUT CURRENT (A)
0.2
in
Figure 45. External Switch for Increased Negative Output Current
+
−V
0.3
out
C
3
= V
1
2
3
in
0.4
−V
BE(Q1) −
V
R
T
A
OSC
in
out
Curve
= 25°C
= 5.0 V
= 0.9 W
0.5
A
B
C
D
MAX828, MAX829
V
http://onsemi.com
BE(Q2)
5
4
0.6
V
−2 V
in
5.0
3.0
5.0
3.0
14
(V)
F
−2.4
−2.6
−2.8
−3.0
−3.2
−2.0
−2.2
R
0
Q
Q
out
13.3
17.3
14.4
17.3
2
1
Figure 47. Current Boosted Load Regulation,
C
C
Q
Q
Output Voltage vs. Output Current MAX829
+
(W)
1
3
1
2
C
= C
= 220 mF
= PZT751
= PZT651
1
0.1
2
= 470 mF
I
out
+
, OUTPUT CURRENT (A)
0.2
C
2
−V
0.3
out
in
minus the sum of the
0.4
V
R
T
A
in
out
= 25°C
= 5.0 V
= 1.0 W
0.5
0.6