LTC3855EFE#TRPBF Linear Technology, LTC3855EFE#TRPBF Datasheet - Page 37

• Manufacturer Part Number: LTC3855EFE#TRPBF
• Description: IC CTLR DC/DC DUAL 2PH 38TSSOP
• Manufacturer: Linear Technology
• Series: PolyPhase®r
• Type: Step-Down (Buck)r

Specifications of LTC3855EFE#TRPBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 3.3 V, 0.6 ~ 12.5 V
• Current - Output: 25A
• Frequency - Switching: 250kHz ~ 770kHz
• Voltage - Input: 4.5 ~ 38 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 38-TSSOP Exposed Pad, 38-eTSSOP, 38-HTSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

Typical applicaTions
L1, L2: VISHAY IHLP5050FD-01, 0.47µH
C
C
20k
OUT1
OUT2
20k
: MURATA GRM31CR60J107ME39L
: SANYO 2R5TPE330M9
330pF
0.1µF
10k
3300pF
0.1µF
Figure 21. High Efficiency Dual Phase 1.2V, 40A Supply with DCR Sensing, f
TK/SS1
I
V
SGND
V
I
TK/SS2
SENSE2
SENSE2
DIFFP
TH1
TH2
FB1
FB2
0.1µF
+
–
PGOOD
LTC3855
100k
BOOST1
BOOST2
EXTV
PGND1
INTV
PGND2
TG1
BG1
BG2
V
CC
CC
IN
0.1µF
4.7µF
0.1µF
CMDSH-3
CMDSH-3
2.2
1µF
M1
RJK0305DPB
M2
RJK0330DPB
M3
RJK0305DPB
M4
RJK0330DPB
2
2
10µF
SW
4
= 250kHz
3.92k
3.92k
0.47µH
0.47µH
L1
L2
+
LTC3855
270µF
16V
C
100µF
6.3V
OUT1
4
+
3855 F21
C
330µF
2.5V
OUT2
4

V
4.5V TO
14V
V
1.2V
40A
IN
OUT
3855f