LTC3736-1 Datasheet, PDF (23/28 Pages) Linear Technology – Dual 2-Phase, No RSENSE Synchronous Controller with Spread Spectrum

TYPICAL APPLICATIO S
LTC3736-1
V_IN
5V
C_IN
10µF
×2
R_FB1A R_FB1B
178k 562k
C_ITH1A
100pF
C_ITH1
220pF
R_ITH1
15k
2200pF
22
23
24
1
2
3
SW1
IPRG1
V_FB1
I_TH1
IPRG2
FREQ
SENSE1^{+ 21}
PGND
BG1
20
19
SSDIS
TG1
PGND
18
17
16
MP1
4 _SGND
TG2 ¹⁵
R_VIN 10Ω
5 _VIN
RUN/SS ¹⁴
LTC3736EUF-1 ₁₃
C_ITH2
C_{VIN 220pF}
1µF
R_ITH2
15k
9
7
8
6
PGOOD
V_FB2
I_TH2
TRACK
BG2
PGND
SENSE2⁺
SW2
12
11
10
PGND
MP2
C_SS
10nF
C_ITH2B
25
100pF
MN1
Si7540DP
L1
1.5µH
+
V_OUT1
2.5V
5A
C_OUT1
150µF
MN2
Si7540DP
L2
1.5µH
C_OUT2
150µF _VOUT2
1.8V
5A
R_FB2A
453k
R_TRACKA ^RFB2B R_TRACKB
590Ω ^909k 1.18k
L1, L2: VISHAY IHLP-2525CZ-01
C_OUT1, C_OUT2: SANYO 4TPB150MC
37361 F13
Figure 13. 2-Phase, Spread Spectrum, Dual Output Synchronous DC/DC Converter
37361f
23