LTC3704 Datasheet, PDF (26/28 Pages) Linear Technology – Wide Input Range, No RSENSE Positive-to-Negative DC/DC Controller

LTC3704
APPLICATIO S I FOR ATIO
R1
49.9k
1%
C_R
1nF
C_C2
100pF
R_C
82k
C_C1
1nF
UV + = 5.4V
UV – = 5.0V
R2
150k
1%
V_IN
7V TO 12V
•
D2 ₊
4 ^10BQ060
RUN
SENSE
+
C_IN
220µF
16V
TPS
T1*
1, 2, 3
•
•
D3 ₊
5 ^10BQ060
I_TH
V_IN
LTC3704
NFB
INTV_CC
•
6
D4
10BQ060
+
FREQ
GATE
R_T
MODE/SYNC GND
120k
f = 200kHz
+
C1
4.7µF
10V
X5R
IRL2910
R_S
0.012Ω
C2
4.7µF
50V
R_FB1
2.49k
1%
R_FB2
45.3k
1%
X5R
* VP5-0155 (PRIMARY = 3 WINDINGS IN PARALLEL)
C3
10µF
25V
X5R
C4
10µF
25V
X5R
GND
V_OUT1
–24V
200mA
+ C_OUT
3.3µF
100V
C5
10µF
25V
X5R
V_OUT2
–72V
200mA
3704 F29
Figure 29. High Power SLIC Supply
26
sn3704 3704fs