LTC3734 Datasheet, PDF (26/28 Pages) Linear Technology – Single-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs

LTC3734
TYPICAL APPLICATIO
PGOOD
VRON
5V
3.3V
2k
5V
1000pF
100k
27
MCH_PG
30
DPRSLPVR
4
STP_CPUB
32
PSIB
31
Si1034X
100pF
680pF
V_OA+
1M
1%
3k
13
VID0
14
VID1
15
VID2
17
VID3
18
VID4
19
VID5
26
11
1M
10
470pF
5
100pF
28
1μF
V_OUT
X5R
22
BAT54
25
4.7μF
X5R
0.47μF
SW
MCH_PG
24
TG
DPRSLPVR
23
SW
STP_CPUB
21
BG
20
PSIB
PGND
FREQSET SENSE^{+ 6}
VID0
SENSE^{– 7}
1μF L1
Q1
0.8μH
Q2
D1
10Ω
1nF
10Ω
VID1
LTC3734
VID2
VID3
RBOOT
VID4 RDPRSLP
VID5
PGOOD
I_TH
RUN/SS
RDPSLP
V_OA+
OAOUT
V_OA–
RBOOT
12
12.7k
1%
8 ^56.2k
9
1.27M
1
3 ^13.3k
2
SGND
13.3k
V_OA+
1.27M
V_FB
PV_CC
BOOST
SV_CC ²⁹
5V
0.1μF
X5R
0.002Ω
V_IN
C1
5V TO 24V
10μF ×5
35V X5R
V_OUT
0.7V TO 1.708V
+ _C5
AT 20A
1μF
270μF ×3
2V
C5: PANASONIC SP EEFSX0R181R OR
SANYO POSCAP 2R5TPE220MG
D1: B340A
L1: SUMIDA CEP125-0R8
Q1: IRF7811W(SO8) OR FDS7860DP
Q2: IRF7811W OR FDS7856DP(SO8) ×2
3.3V
249k 1M
PGOOD
MMBT3904
80.6k
CLKEN#
2k
3.3V
1.9k
2N7002 4.12k
43.2k
1μF
MMBT3904
IMPV4_PG
RBOOT
VRON
OPTIONAL INTERFACES
3734 F09
Figure 9. 5V to 24V Input, 0.7V to 1.708V Output, 20A IMVP-IV Compatible Power Supply
3734f
26