LTC3708_15 Datasheet, PDF (30/32 Pages) Linear Technology – Fast 2-Phase, No RSENSE Buck Controller with Output Tracking

LTC3708
TYPICAL APPLICATIONS
12V/12A and 5V/12A at 300kHz Application
V_IN
20V TO 28V ₊
100μF
50V
C1
3.3μF
50V
X5R
C2
3.3μF
50V
X5R
5V
BAT54A
V_OUT1
12V
12A
C3
3.3μF
50V
X5R
+
C_OUT1
150μF
16V
s2
75k
10k
C4
3.3μF
50V
X5R
L1
3.5μH
B340LA
22pF
191k
10k
22pF
BOOST1 BOOST2
10Ω
V_CC
5V
Q1
HAT2167H
Q2
0Ω
HAT2167H
0Ω
5.6M
88.7k ^VIN
V_CC
24.9k
C6
1μF
0Ω
V_CC TRACK1 FCB DRV_CC
TG1
TG2
BOOST1
BOOST2
0.1μF
LTC3708EUH
SW1
SW2
100pF
SENSE1⁺
BG1
SENSE1^–
SENSE2⁺
BG2
SENSE2^–
PGND1
V_RNG1
PGND2
V_RNG2
I_ON1
I_ON2
1nF
150pF
V_FB1
TRACK2
EXTLPF
I_TH1
RUN/SS
V_FB2
PGOOD
INTLPF
I_TH2
SGND
2.2nF
33.2k
0.1μF
2.2μF
0Ω
BOOST2
0.1μF
0Ω
100pF
0Ω
Q3
HAT2167H
Q4
HAT2167H
C5
3.3μF
50V
X5R
C6
3.3μF
50V
X5R
L2
2.4μH
D3
B340LA
V_OUT2
5V
+
C_OUT2 ^12A
220μF
6.3V
s2
2.2M
V_{IN 88.7k}
1nF
V_CC
75k
5V
47pF
100k
PGOOD
150pF
1.5nF
15k
5.11k
24.9k
10k
470pF
47pF
22nF
3708 TA04
C_OUT1: SANYO 16SVP150M
C_OUT2: SANYO 6TPD220M
C1 TO C6: TDK C4532X5R1H335M
L1: SUMIDA CDEP147-3R5MC-H
L2: SUMIDA CDEP147-2R4MC
3708fb
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