LTC3855IFE#PBF Linear Technology, LTC3855IFE#PBF Datasheet - Page 44

• 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: -

relaTeD parTs
LTC3855
PART NUMBER DESCRIPTION
LTC3853
LTC3731
LTC3850/
LTC3850-1/
LTC3850-2
LTC3854
LTC3851A/
LTC3851A-1
LTC3878
LTC3879
LTM4600HV
LTM4601AHV
LTC3610
LTC3611
LTC3857/
LTC3857-1
LTC3868/
LTC3868-1
LT3845
No R

SENSE
is a trademark of Linear Technology Corporation. µModule is a registered trademark of Linear Technology Corporation.
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
Triple Output, Multiphase Synchronous Step-Down DC/DC
Controller, R
3-Phase Synchronous Controller, Expandable to 12 phases
Differential Amp, High Output Current 60A to 240A
Dual 2-Phase, High Efficiency Synchronous Step-Down DC/
DC Controller, R
Small Footprint Wide V
DC/DC Controller, R
No R
DC Controller, R
No R
DC/DC Controller, No R
No R
DC/DC Controller, No R
10A DC/DC µModule
12A DC/DC µModule Complete Power Supply
12A, 1MHz, Monolithic Synchronous Step-Down DC/DC
Converter
10A, 1MHz, Monolithic Synchronous Step-Down DC/DC
Converter
Low I
DC/DC Controller with 99% Duty Cycle
Low I
DC/DC Controller with 99% Duty Cycle
Low I
Controller
SENSE
SENSE
SENSE
Q
Q
Q
, Dual Output 2-Phase Synchronous Step-Down
, Dual Output 2-Phase Synchronous Step-Down
, High Voltage Synchronous Step-Down DC/DC
●
™ Wide V
Constant On-Time Synchronous Step-Down
Constant On-Time Synchronous Step-Down
FAX: [phone]
SENSE
SENSE
SENSE
or DCR Current Sensing and Tracking
SENSE
IN
®
or DCR Current Sensing and Tracking
or DCR Current Sensing and Tracking
Complete Power Supply
Range Synchronous Step-Down DC/
SENSE
SENSE
IN
Range Synchronous Step-Down
or DCR Current Sensing
Required
Required
●
www.linear.com
COMMENTS
Phase-Lockable Fixed 250kHz to 750kHz Frequency, 4V ≤ V
V
Phase-Lockable Fixed 250kHz to 600kHz Frequency, 0.6V ≤ V
4.5V ≤ V
Phase-Lockable Fixed 250kHz to 780kHz Frequency, 4V ≤ V
0.8V ≤ V
Fixed 400kHz Operating Frequency 4.5V ≤ V
2mm × 3mm QFN-12
Phase-Lockable Fixed 250kHz to 750kHz Frequency, 4V ≤ V
0.8V ≤ V
Very Fast Transient Response, t
0.8V ≤ V
Very Fast Transient Response, t
0.6V ≤ V
High Efficiency, Compact Size, Fast Transient Response 4.5V ≤ V
0.8V ≤ V
High Efficiency, Compact Size, Fast Transient Response 4.5V ≤ V
0.8V ≤ V
High Efficiency, Adjustable Constant On-Time 4V ≤ V
V
High Efficiency, Adjustable Constant On-Time 4V ≤ V
V
Phase-Lockable Fixed Operating Frequency 50kHz to 900kHz,
4V ≤ V
Phase-Lockable Fixed Operating Frequency 50kHz to 900kHz,
4V ≤ V
Adjustable Fixed Operating Frequency 100kHz to 500kHz,
4V ≤ V
OUT3
OUT(MIN)
OUT(MIN)
Up to 13.5V
IN
IN
IN
IN
OUT
OUT
OUT
OUT
OUT
OUT
≤ 38V, 0.8V ≤ V
≤ 24V, 0.8V ≤ V
≤ 60V, 1.23V ≤ V
0.6V, 9mm × 9mm QFN-64
0.6V, 9mm × 9mm QFN-64
≤ 32V,
≤ 5.25V
≤ 5.25V, MSOP-16E, 3mm × 3mm QFN-16, SSOP-16
≤ 0.9V
≤ 0.9V
≤ 5V, 15mm × 15mm × 2.8mm
≤ 5V, 15mm × 15mm × 2.8mm
IN
IN
, SSOP-16
, MSOP-16E, 3mm × 3mm QFN-16
OUT
OUT
OUT
≤ 24V, I
≤ 14V, I
≤ 36V, I
ON(MIN)
ON(MIN)
Q
Q
Q
 LINEAR TECHNOLOGY CORPORATION 2009
= 50µA
= 170µA,
= 43ns, 4V ≤ V
= 43ns, 4V ≤ V
= 30µA, TSSOP-16
IN
≤ 38V, 0.8V ≤ V
IN
IN
IN
IN
LT 1009 • PRINTED IN USA
≤ 24V,
≤ 32V,
≤ 38V,
≤ 38V,
IN
IN
IN
OUT
OUT
≤ 24V,
≤ 30V,
≤ 38V,
IN
IN
≤ 5.25V,
≤ 5.25V,
≤ 28V,
≤ 28V,
3855f