LTC3858 Linear Technology, LTC3858 Datasheet - Page 38

• Manufacturer Part Number: LTC3858
• Description: Synchronous Step-Down Controller
• Manufacturer: Linear Technology

LTC3858
relaTeD parTs
PART NUMBER
LTC3857/LTC3857-1 Low I
LTC3868/LTC3868-1 Low I
LTC3834/LTC3834-1 Low I
LTC3835/LTC3835-1 Low I
LT3845
LT3800
LTC3824
LTC3850/LTC3850-1
LTC3850-2
LTC3855
LTC3853
LTC3854
LTC3775
LTC3851A/
LTC3851A-1
LTC3878/LTC3879
LTM4600HV
LTM4601AHV

Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
DC/DC Controller with 99% Duty Cycle
DC/DC Controller with 99% Duty Cycle
Low I
DC/DC Controller
Low I
DC/DC Controller
Low I
Dual 2-Phase, High Efficiency Synchronous Step-Down
DC/DC Controllers, R
Tracking
Dual, Multiphase, Synchronous DC/DC Step-Down
Controller with Diffamp and DCR Temperature
Compensation
Triple Output, Multiphase Synchronous Step-Down
DC/DC Controller, R
Tracking
Small Footprint Wide V
DC/DC Controller
High Frequency Synchronous Voltage Mode Step-Down
DC/DC Controller
No R
DC/DC Controller
No R
DC/DC Controller
10A DC/DC µModule
12A DC/DC µModule Complete Power Supply
SENSE
SENSE
Q
Q
Q
Q
Q
Q
Q
●
FAX: [phone]
, Dual Output 2-Phase Synchronous Step-Down
, Dual Output 2-Phase Synchronous Step-Down
, Synchronous Step-Down DC/DC Controller
, Synchronous Step-Down DC/DC Controller
, High Voltage Synchronous Step-Down
, High Voltage Synchronous Step-Down
, High Voltage DC/DC Controller, 100% Duty Cycle Selectable Fixed 200kHz to 600kHz Operating Frequency,
™ Wide V
Constant On-Time Synchronous Step-Down
SENSE
IN
®
SENSE
Complete Power Supply
Range Synchronous Step-Down
IN
Range Synchronous Step-Down
or DCR Current Sensing and
or DCR Current Sensing and
●
www.linear.com
COMMENTS
Phase-Lockable Fixed Operating Frequency 50kHz to 900kHz,
4V ≤ V
Phase-Lockable Fixed Operating Frequency 50kHz to 900kHz,
4V ≤ V
Phase-Lockable Fixed Operating Frequency 140kHz to 650kHz,
4V ≤ V
Phase-Lockable Fixed Operating Frequency 140kHz to 650kHz,
4V ≤ V
Adjustable Fixed Operating Frequency 100kHz to 500kHz,
4V ≤ V
Fixed 200kHz Operating Frequency, 4V ≤ V
I
4V ≤ V
Phase-Lockable Fixed Operating Frequency 250kHz to 780kHz,
4V ≤ V
Phase-Lockable Fixed Frequency 250kHz to 770kHz,
4.5V ≤ V
Phase-Lockable Fixed Operating Frequency 250kHz to 750kHz,
4V ≤ V
Fixed 400kHz Operating Frequency, 4.5V ≤ V
0.8V ≤ V
Fast Transient Response, t
0.6V ≤ V
Phase-Lockable Fixed Operating Frequency 250kHz to 750kHz,
4V ≤ V
SSOP-16
Very Fast Transient Response, t
V
High Efficiency, Compact Size, UltraFast™ Transient Response,
4.5V ≤ V
High Efficiency, Compact Size, Ultrafast Transient Response,
4.5V ≤ V
Q
OUT
= 100µA, TSSOP-16
Up 90% of V
IN
IN
IN
IN
IN
IN
IN
IN
IN
≤ 38V, 0.8V ≤ V
≤ 24V, 0.8V ≤ V
≤ 36V, 0.8V ≤ V
≤ 36V, 0.8V ≤ V
≤ 60V, 1.23V ≤ V
≤ 60V, 0.8V ≤ V
≤ 30V, 0.8V ≤ V
≤ 24V, V
≤ 38V, 0.8V ≤ V
IN
OUT
OUT
IN
IN
≤ 38V, 0.8V ≤ V
≤ 28V, 0.8V ≤ V
≤ 28V, 0.8V ≤ V
≤ 5.25V, 2mm × 3mm QFN-12, MSOP-12
≤ 0.8V
OUT
IN
IN
, MSOP-16E, 3mm × 3mm QFN-16, SSOP-16
Up to 13.5V
, MSOP-16E, 3mm × 3mm QFN-16
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
ON(MIN)
OUT
OUT
OUT
≤ 10V, I
≤ V
≤ 5.25V
≤ 5.25V, MSOP-16E, 3mm × 3mm QFN-16,
≤ 24V, I
≤ 14V, I
≤ 10V, I
≤ 36V, I
≤ 12.5V
≤ 5V, 15mm × 15mm × 2.8mm
≤ 5V, 15mm × 15mm × 2.8mm
ON(MIN)
IN
= 30ns, 4V ≤ V
, I
 LINEAR TECHNOLOGY CORPORATION 2009
Q
Q
Q
Q
Q
= 40µA, MSOP-10E
= 80µA,
Q
= 50µA,
= 170µA,
= 30µA,
= 120µA, TSSOP-16
= 43ns, 4V ≤ V
www.DataSheet4U.com
IN
≤ 60V, 1.23V ≤ V
IN
LT 0110 REV A • PRINTED IN USA
≤ 38V,
IN
≤ 38V,
IN
≤ 38V,
OUT
≤ 36V,
3858fa