TLE6361G Infineon Technologies, TLE6361G Datasheet - Page 50

• Manufacturer Part Number: TLE6361G
• Description: IC PS SYSTEM MULTI VOLT PDSO-36
• Manufacturer: Infineon Technologies
• Type: Step-Down (Buck)r

Specifications of TLE6361G

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 4
• Voltage - Output: 5.4 ~ 6.05 V
• Current - Output: 1.5A
• Frequency - Switching: 370kHz
• Voltage - Input: 5.5 ~ 60 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: DSO-36
• Output Voltage: 5.5 V
• Output Current: 1.5 A
• Input Voltage Max: 60 V
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 150 C
• Output Voltage Tolerance: +/- 10 %
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SP000013297; TLE6361GNT; TLE6361GT

5.2
A typical choice of external components for the buck converter is given in figure 14. For
basic operation of the buck converter the input capacitor C
C
pump capacitors C
The additional components shown on top of the circuit lower the electromagnetic
emission (L
battery systems the switching loss minimization feature might not be used. In that case
the Boost pin (33) is connected directly to the IN pins (32, 30) and the components
R
5.2.1
The inductance value determines together with the input voltage, the output voltage and
the switching frequency the current ripple which occurs during normal operation of the
step down converter. This current ripple is important for the all over ripple at the output
of the switching converter.
As a rule of thumb this current ripple I is chosen between 10% and 50% of the load
current.
For optimum operation of the control loop of the Buck converter the inductance value
should be in the range indicated in section 3.3, recommended operation range.
When picking finally the inductance of a certain supplier (Epcos, Coilcraft etc.) the
saturation current has to be considered. With a maximum current limit of the Buck
converter of 3.2A an inductance with a minimum saturation current of 3.2A has to be
chosen.
Data Sheet, Rev. 2.0
BTP
Boost
, the catch diode D
, C
Boost
Buck converter circuit
Buck inductance (L
I
, C
and D
I1
, C
FLY
Boost
I3
, R
and C
are left away
B
Slew
, the induuctance L
) and the switching losses (R
CCP
B
) selection:
L
are necessary.
=
-------------------------------------------------- -
V
I
–
f
SW
V
50
OUT
B
V
, the output capacitor C
I
V
I
OUT
Boost
I2
, the bootstrap capacitor
, C
Boost
, D
B
and the charge
Boost
TLE 6361 G
). For 12V
2005-03-01