Datasheet

IFX91041
Application Information
Data Sheet 13 Rev. 1.1, 2011-07-08
8.4 IFX91041EJV50, IFX91041EJV33 with fixed Output Voltage
Figure 5 Application Diagram IFX91041EJV50 or IFX91041EJV33
Note: This is a very simplified example of an application circuit. The function must be verified in the real application
V
Batt
V
OUT
D
1
L
I
22…47µH
Ignition Key
Terminal 15
L
BU
C
BU1
D
BU
47µH
100µF
C
BU2
220nF
220nF
C
BOT
8
2
GND
Enable
Oscillator
7
4
Buck
Converter
6
FB
BUO
3
COMP
IFX91041EJV50
IFX91041EJV33
1
SYNC
5
BDS
EN VS
Over
Temperature
Shutdown
Feedforward
Soft start ramp
generator
Bandgap
Reference
C
COMP
Charge Pump
R
COMP