IFX 91041EJ V50 Infineon Technologies, IFX 91041EJ V50 Datasheet - Page 14

• Manufacturer Part Number: IFX 91041EJ V50
• Manufacturer: Infineon Technologies

Specifications of IFX 91041EJ V50

• Packages: PG-DSO-8
• Comment: VQ fixed to 5.0V; Tolerance 2% up to 1000mA; DSO-8 EP
• Vq (max): 5.0 V
• Iq (max): 1,800.0 mA
• Iq (typ): 7,000.0 µA
• Output: Buck Converter

8.5
Figure 6
Note: This is a very simplified example of an application circuit. The function must be verified in the real application
The output voltage of the IFX91041EJV can be programmed by a voltage divider connected to the feedback pin
FB. The divider cross current should be 300 µA at minimum, therefore the maximum
For the desired output voltage level
Add a 0.5 nF capacitor close to FB pin.
Data Sheet
V
Batt
C
R
COMP
COMP
Adjustable Output Voltage Device
Application Diagram IFX91041EJV
Ignition Key
Terminal 15
COMP
SYNC
3
1
D
1
Temperature
Shutdown
Reference
Biasing &
Oscillator
Bandgap
Enable
Over
Feedforward
R
7
Converter
2
EN
V
≤
Buck
IFX91041EJV
CC
22…47µH
V
FB
,
L
R
I
/
1
2
I
calculates then (neglecting the small FB input current):
R2
R
GND
Charge Pump
1
Soft start ramp
-->
=
generator
R
8
R
2
⎛
⎝
2
14
VS
V
--------- - 1
V
≤ 0.6V / 300 µA = 2 kΩ
CC
FB
–
5
6
4
⎞ .
⎠
BDS
BUO
FB
D
C
BU
FB
220nF
C
47µH
BOT
L
BU
R
R
1
2
100µF
C
R
BU1
2
Application Information
calculates:
220nF
C
Rev. 1.1, 2011-07-08
BU2
IFX91041
V
OUT