TLE6365_07 Datasheet, PDF (14/18 Pages) Infineon Technologies AG – Step Down Voltage Regulator with Reset

TLE 6365
Diagrams: Oscillator and Boost/Buck-Converter Performance
In the following the behaviour of the Boost/Buck-converter and the oscillator is shown.
Efficiency Buck vs.
Boost Voltage
Oscillator Frequency Deviation vs.
Junction Temperature
95
η%
90
AED03017
V_CC = 5 V
10
kHz
∆f _OSC
5
AED03016
Referred to f_OSC
at T_j = 25 ˚C
85
0
80
I_Load = 120 mA
-5
75
80 mA
-10
70
40 mA
65
5
15
25 V 30
V_S
Feedback Voltage vs. Junction
Temperature
5.15
AED03356.VSD
V
V_CC
5.10
5.05
5.00
I_BUO = 400 mA
4.95
4.90
4.85
4.80
-50 -25 0 25 50 75 100 °C 150
T_j
-15
-50 -25 0 25 50 75 100 ˚C 150
T_j
Buck Overcurrent Threshold vs.
Junction Temperature
1.4
I_OC ^A
1.3
AED03018
1.2
1.1
1
I_BUOC (Buck-Converter)
0.9
0.8
-50 -25 0 25 50 75 100 ˚C 150
T_j
Data Sheet
14
Rev. 1.9, 2007-07-30