LTC3855EFE#PBF Linear Technology, LTC3855EFE#PBF Datasheet - Page 11
LTC3855EFE#PBF
Manufacturer Part Number
LTC3855EFE#PBF
Description
IC BUCK SYNC ADJ 25A DL 38TSSOP
Manufacturer
Linear Technology
Series
PolyPhase®r
Type
Step-Down (Buck)r
Datasheet
1.LTC3855EUJPBF.pdf
(44 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
FuncTional block DiagraM
CLKOUT
FREQ
I
LIM
0.6V
REF
V
IN
PLL-SYNC
0.55V
–
SLEEP
I
51k
THB
1
MODE/PLLIN
+
I
CMP
MODE/SYNC
+
–
DETECT
OSC
INTV
CC
+
PHASMD
EA
3k
+
–
SLOPE COMPENSATION
SLOPE RECOVERY
ACTIVE CLAMP
TEMPSNS
S
R
–
+
UVLO
Q
I
REV
I
TH
0.5V
R
–
–
ITEMP
C
SS
C
C1
F
0.6V
+
+
EXTV
–
1.2V
–
CC
RUN
RUN
F
4.7V
FCNT
+
RUN
+
ON
OV
THROUGH
SWITCH
BURSTEN
SHOOT
LOGIC
ANTI-
AND
REG
TK/SS
5V
1.2 µ A
C
SS
UV
OV
+
–
+
–
3855 FBD
SENSE
SENSE
PGOOD
BOOST
INTV
C
PGND
SGND
V
SW
BG
VCC
V
TG
IN
FB
0.54V
0.66V
CC
+
–
1 µ A
C
D
B
B
R2
R1
+
C
DIFFOUT
IN
LTC3855
M1
M2
DIFFAMP
V
L1
IN
40k
+
–
INTV
CC
DIFFP
+
V
40k
OUT
C
40k
OUT
40k
DIFFN
3855f