LTC3858-1 Linear Technology Corporation, LTC3858-1 Datasheet - Page 36

• Manufacturer Part Number: LTC3858-1
• Description: Dual 2-Phase Synchronous Step-Down Controller
• Manufacturer: Linear Technology Corporation

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LTC3858-1
RELATED PARTS
36
PART NUMBER
LTC3608/LTC3609
LTC3610/LTC3611
LT
LTC3727A-1
LTC3731
LTC3778
LTC3780
LTC3785
LT3800
LTC3811
LTC3824
LTC3826/LTC3826-1 Very Low I
LTC3827/LTC3827-1 Low I
LTC3828
LTC3834/LTC3834-1 Very Low I
LTC3835/LTC3835-1 Low I
LT3844
LT3845
LTC3850/LTC3850-1
LTC3850-2
LTC3851/LTC3851-1 No R
LTC3853
LTC3857/LTC3857-1 Low I
LTC3879
LTM4600HV
LTM4601AHV
PolyPhase is a registered trademark fo Linear Technology Corporation. No R
®
3724
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
8A/6A Monolithic Synchronous Step-Down DC/DC Converters Optimized for High Step-Down Ratios, V
12A/10A Monolithic Synchronous Step-Down DC/DC
Converters
Low I
Controller
Dual, 2-Phase Synchronous Controller
3-Phase, Single Output From 250kHz to 600kHz Synchronous
Step-Down Controller
No R
Controller
High Effi ciency, Synchronous, 4-Switch Buck-Boost
Controller
10V, High Effi ciency, Synchronous, No R
Controller
Low I
Dual, PolyPhase
20A to 200A
Low I
Cycle, Programmable Operating Frequency
Controllers
Dual, 2-Phase Synchronous Step-Down Controller with
Tracking
Low I
Programmable Operating Frequency
Low I
DC/DC Controller
Dual 2-Phase Synchronous Step-Down Controllers
Triple Output, Multiphase Synchronous Step-Down Controller R
No R
Controller
10A Complete Switch Mode Power Supply
12A Complete Switch Mode Power Supply
SENSE
SENSE
SENSE
●
Q
Q
Q
Q
Q
Q
Q
Q
, High Voltage Current Mode Switching Regulator
, High Voltage Synchronous Regulator Controller
, High Voltage Current Mode Controller, 100% Duty
, Dual, 2-Phase Synchronous Step-Down Controllers
, Synchronous Step-Down Controller
, High Voltage Current Mode Controller with
, High Voltage Single Output Synchronous Step-Down
, Dual, 2-Phase Synchronous Step-Down Controllers
FAX: [phone]
Q
Q
Constant On-Time Synchronous Step-Down
Wide Input Range Step-Down Controllers
Constant On-Time Synchronous Step-Down
, Dual, 2-Phase Synchronous Step-Down
, Synchronous Step-Down Controller
®
Synchronous Step-Down Controller,
●
www.linear.com
SENSE
, Buck-Boost
SENSE
is a trademark of Linear Technology Corporation.
COMMENTS
Optimized for High Step-Down Ratios, V
V
Bias Regulator, Burst Mode Operation, 100μA I
Very Low Dropout, V
0.6V ≤ V
MOSFET Drivers
Extremely Fast Transient Response, t
4V ≤ V
V
SSOP-24, QFN-32 Packages
V
QFN-24 Package
V
Burst Mode Operation, 100μA I
Differential Remote Sense Amplifi er, R
V
Operation, 40μA I
30μA I
80μA I
Up to Six Phases, 0.8V ≤ V
30μA I
80μA I
V
Operation, 120μA I
1.23V ≤ V
R
Frequency
4V ≤ V
Sense, MSOP-16, SSOP-16, 3mm × 3mm QFN-16
50μA I
Extremely Fast Transient Response, t
4V ≤ V
92% Effi ciency, V
Ultrafast™ Transient Response
92% Effi ciency, V
Ultrafast Transient Response
IN
IN
IN
IN
IN
IN
SENSE
SENSE
: 4V to 36V, V
: 2.7V to 10V, V
Up to 60V, I
Up to 60V, I
Up to 60V, I
Up to 60V, I
Q
Q
Q
Q
Q
IN
IN
IN
, 0.8V ≤ V
, 0.8V ≤ V
, 0.8V ≤ V
, 0.8V ≤ V
or DCR Current Sense, 250kHz to 780kHz Fixed Operating
or DCR Current Sensing, Tracking and Synchronizable
, 0.8V ≤ V
OUT
≤ 36V, 0.8V Reference
≤ 38V, Very Low Dropout with Tracking, DCR Current
≤ 38V, 0.6V Reference
OUT
≤ 5.25V, 4.5V ≤ V
≤ 36V, 4V ≤ V
OUT
OUT
OUT
OUT
OUT
IN
IN
Q
OUT
OUT
OUT
OUT
OUT
OUT
, MSOP-10 Package
Q
: 4.5V to 28V, True Current Mode Control,
: 4.5V to 28V, True Current Mode Control,
≤ 5A, 16-Lead TSSOP FE Package, Onboard
≤ 20A, Current Mode, Onboard Bias Regulator,
≤ 5A, Onboard Bias Regulator, Burst Mode
≤5V Onboard Bias Regulator, Burst Mode
, Sync Capability, 16-Lead TSSOP Package
: 0.8V to 30V, I
OUT
≤ 10V, 4V ≤ V
≤ 10V, 4V ≤ V
≤ 10V, 4V ≤ V
≤ 10V, 4V ≤ V
≤ 24V, 4V ≤ V
: 2.7V to 10V, I
≤ 14V, 4V ≤ V
OUT
IN
≤ 60V, 120μA I
IN
© LINEAR TECHNOLOGY CORPORATION 2009
Q
≤ 5.25V, 4.5V ≤ V
≤ 32V, I
, 16-Lead TSSOP Package
Q
IN
IN
IN
IN
IN
= 1.5mA, I
Q
ON(MIN)
ON(MIN)
≤ 36V
≤ 36V
≤ 36V
≤ 36V
≤ 38V
SENSE
IN
= 86μA, I
OUT
IN
IN
≤ 36V
Up to 18V/32V
Up to 24V/32V
≤ 60A, Integrated
or DCR Current Sense
Q
≤ 100ns,
= 43ns,
Q
LT 0709 • PRINTED IN USA
SD
SD
, 200kHz Operation
IN
< 55μA,
< 15μA,
≤ 28V
38581f