LTC3855IFE#PBF Linear Technology, LTC3855IFE#PBF Datasheet - Page 11

• Manufacturer Part Number: LTC3855IFE#PBF
• Description: IC CTLR DC/DC MULTIPHASE 38SSOP
• Manufacturer: Linear Technology
• Series: PolyPhase®r
• Type: Step-Down (Buck)r

Specifications of LTC3855IFE#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 ~ 125°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: -

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