LTC3855EFE#PBF Linear Technology, LTC3855EFE#PBF Datasheet - Page 41

• Manufacturer Part Number: LTC3855EFE#PBF
• Description: IC BUCK SYNC ADJ 25A DL 38TSSOP
• Manufacturer: Linear Technology
• Series: PolyPhase®r
• Type: Step-Down (Buck)r

Specifications of LTC3855EFE#PBF

• 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
• Primary Input Voltage: 38V
• No. Of Outputs: 2
• Output Voltage: 12.5V
• No. Of Pins: 38
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 1 - Unlimited
• Switching Frequency Max: 770kHz
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

Typical applicaTions
L1: WURTH 7443551131
L2: WURTH 7443551370
C
OUT1
4.99k
10k
0.1µF
0.1µF
47pF
47pF
, C
OUT2
5.6nF
5.6nF
: SANYO 16SVPC39MV
0.1µF
20k
20k
147k
383k
TK/SS1
I
V
SGND
V
I
TK/SS2
SENSE2
SENSE2
DIFFP
Figure 25. 12V, 6A and 5V, 10A Supply with DCR Sensing, f
TH1
TH2
FB1
FB2
0.1µF
+
–
PGOOD1
PGOOD2
LTC3855
100k
100k
BOOST1
BOOST2
EXTV
PGND1
INTV
PGND2
BG1
BG2
TG1
V
CC
CC
IN
0.1µF
4.7µF
0.1µF
CMDSH-3
CMDSH-3
0.1µF
2.2
SW
= 250kHz
M1
BSC093N040LS
M2
BSC093N040LS
M3
BSC093N040LS
M4
BSC093N040LS
4.7µF
6
18k
8.2k
3.7µH
13µH
24k
24k
L1
L2
LTC3855
3855 F25
+
+
+
100µF
50V
C
39µF
16V
C
39µF
16V
OUT1
2
OUT2
2

V
13V TO
38V
V
12V
6A
V
5V
10A
IN
OUT1
OUT2
3855f