LTC3865EFE#TRPBF Linear Technology, LTC3865EFE#TRPBF Datasheet - Page 38

• Manufacturer Part Number: LTC3865EFE#TRPBF
• Description: IC BUCK SYNC ADJ DUAL 38TSSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3865EFE#TRPBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 5 V
• 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
• Current - Output: -
• Power - Output: -

LTC3865/LTC3865-1
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
LTC3850/LTC3850-1
LTC3850-2
LTC3855
LTC3860
LTC3853
LTC3854
LTC3878/LTC3879
LTC3775
38
V
OUT1
3.6V
10A
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
+
C
L1: TOKO FDA1055-2R2M
L2: TOKO FD1055-1R2M
0.004Ω
Figure 18. High V
OUT1
49.9k
1%
C
220μF
OUT1
2
, C
DESCRIPTION
Dual 2-Phase, High Effi ciency Synchronous Step-Down DC/DC
Controllers, R
Dual, Multiphase Synchronous Step-Down DC/DC Controller
with Diffamp and DCR Temperature Compensation
Dual, Multiphase Synchronous Step-Down DC/DC Controller
with Diffamp and Three-State Output Drive
Triple Output, Multiphase Synchronous Step-Down DC/DC
Controller, R
Small Footprint Wide V
DC/DC Controller, R
No R
DC/DC Controller, No R
High Frequency, Synchronous Voltage Mode Step-Down
DC/DC Controller
OUT2
HAT2266H
SENSE
2.2μH
●
: SANYO 4TPE 220μF
10k
1%
L1
FAX: [phone]
Constant On-Time Synchronous Step-Down
SENSE
17.8k
1%
SENSE
100Ω
100Ω
1800pF
IN
, 3.6V/10A, 2V/10A Converter With External Sense Resistors Synchronized at 400kHz
HAT2266H
or DCR Current Sensing and Tracking
0.1μF
SENSE
or DCR Current Sensing and Tracking
4.7μF
CMDSH-3
3.3μF
50V
IN
SENSE
Range Synchronous Step-Down
or DCR Current Sensing
100pF
1nF
●
D3
Required
www.linear.com
400kHz
PLLIN
2.2Ω
0.1μF
TG1
BOOST1
SW1
BG1
MODE/PLLIN
I
SENSE1
SENSE1
VID11
VID12
V
I
V
RUN1
LIM
TH1
TK/SS1
OSENSE1
IN
PGOOD
+
–
LTC3865
C
1μF
SGND
IN2
EXTV
CC
V
SENSE2
SENSE2
BOOST2
OSENSE2
TK/SS2
INTV
VID21
VID22
PGND
RUN2
FREQ
SW2
BG2
I
TG2
TH2
CC
+
–
0.1μF
COMMENTS
Phase-Lockable Fixed 250kHz to 780kHz Frequency,
4V ≤ V
Phase-Lockable Fixed 250kHz to 770kHz Frequency,
4.5V ≤ V
Operates with Power Blocks, DRMOS Devices or External
MOSFETs, 3V ≤ V
Phase-Lockable Fixed 250kHz to 750kHz Frequency,
4V ≤ V
Fixed 400kHz Operating Frequency 4.5V ≤ V
0.8V ≤ V
Very Fast Transient Response, t
0.8V ≤ V
Fast Transient Response, t
0.6V ≤ V
IN
IN
IN
OUT
OUT
OUT
≤ 30V, 0.8V ≤ V
≤ 24V, V
≤ 38V, t
121k
≤ 5.25V, 2mm × 3mm QFN-12, MSOP-12
≤ 0.9V
≤ 0.8V
D4
CMDSH-3
3.3μF
50V
0.1μF
HAT2266H
OUT3
IN
1nF
ON(MIN)
IN
IN
14.7k
1%
≤ 24V, t
2200pF
, SSOP-16, MSOP-16E, 3mm × 3mm QFN-16
, MSOP-16E, 3mm × 3mm QFN-16
Up to 13.5V
OUT
ON(MIN)
= 90ns
ON(MIN)
≤ 5.25V
© LINEAR TECHNOLOGY CORPORATION 2010
HAT2266H
ON(MIN)
100pF
1.2μH
100Ω
100Ω
= 30ns, 4V ≤ V
+
L2
= 20ns
= 43ns, 4V ≤ V
10k
1%
C
22μF
50V
LT 0810 REV B • PRINTED IN USA
23.2k
IN1
1%
0.004Ω
IN
+
≤ 38V,
IN
V
7V TO 36V
3865 F18
IN
≤ 38V,
C
220μF
V
2V
10A
OUT2
2
IN
OUT2
≤ 38V,
3865fb