LTC3856EFE#PBF Linear Technology, LTC3856EFE#PBF Datasheet - Page 40

• Manufacturer Part Number: LTC3856EFE#PBF
• Description: IC DCDC SWITCH
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3856EFE#PBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.6 ~ 5 V
• 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
• Current - Output: -
• Power - Output: -

LTC3856
Typical applicaTion
relaTeD parTs
PART NUMBER
LTC3829
LTC3860
LTC3855
LTC3853
LTC3850/LTC3850-1/
LTC3850-2
0
100
S
3856 F19
20k
S
PGOOD
330pF
47pF
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
49.9
100pF
30.1k
100k
100k
0.1µF
INTV
S
S
S
S
2.68k
CC
DESCRIPTION
3-Phase, Single Output, Synchronous Step-Down Controller
with Diffamp and DCR Temperature Compensation
Dual, Multiphase, Synchronous Step-Down DC/DC Controller
with Diffamp and Three-State Output Drive
Dual, Multiphase, Synchronous Step-Down DC/DC Controller
with Diffamp and DCR Temperature Compensation
Triple Output, Multiphase, Synchronous Step-Down DC/DC
Controller, R
Dual 2-Phase, High Efficiency, Synchronous Step-Down
DC/DC Controller, R
CLKOUT
PLLIN
FREQ
RUN
TK/SS
I
V
ITEMP
PHASMD
DIFFP
DIFFOUT
ISET
EXTV
ILIM
MODE
PGOOD
AVP
DIFFN
TH
●
FB
FAX: [phone]
CC
2.2
PGND SGND
LTC3856
SENSE
V
V
S
IN
IN
0.1µF
or DCR Current Sensing and Tracking
SENSE
SENSE2
SENSE2
SENSE1
SENSE1
BOOST2
BOOST1
INTV
SW2
SW1
BG2
BG1
TG2
TG1
●
or DCR Current Sensing and Tracking
CC
+
–
–
+
www.linear.com
4.7µF
Figure 19. 1.5V/50A Converter with AVP
INTV
200
200
1nF
1nF
CC
RJK0305DPB
CMDSH-3
200
200
0.1µF
CMDSH-3
INTV
0.1µF
RJK0330DPB
Q3
Q1
RJK0305DPB
RJK0330DPB
CC
INTV
RJK0305DPB
CC
Q4
RJK0305DPB
Q2
Q5
COMMENTS
Phase-Lockable Fixed 250kHz to 770kHz Frequency,
4.5V ≤ V
Operates with Power Blocks, DRMOS Devices or External
MOSFETs, 3V ≤ V
Phase-Lockable Fixed Frequency 250kHz to 770kHz,
4.5V ≤ V
Phase-Lockable Fixed 250kHz to 750kHz Frequency,
4V ≤ V
Phase-Lockable Fixed 250kHz to 780kHz Frequency,
4V ≤ V
Q7
IN
IN
V
V
IN
IN
≤ 24V, V
≤ 30V, 0.8V ≤ V
IN
IN
Q8
RJK0330DPB
Q6
RJK0330DPB
≤ 38V, 0.8V ≤ V
≤ 38V, 0.8V ≤ V
22µF
22µF
OUT3
IN
0.22µH
0.22µH
≤ 24V, t
22µF
22µF
L1
L2
Up to 13.5V
OUT
OUT
OUT
 LINEAR TECHNOLOGY CORPORATION 2010
ON(MIN)
≤ 5.25V
0.001
0.001
≤ 5V
≤ 12V
10
= 20ns
S
S
S
10
100µF
6.3V
2
V
V
LT 0510 • PRINTED IN USA
O_SNS
O_SNS
+
+
V
IN
–
+
180µF
16V
330µF
2.5V
2
4
4.7µF
6.3V
V
4.5V
TO 14V
V
1.5V/
50A
GND
IN
OUT
3856f