LTC1628CG-SYNC#PBF Linear Technology, LTC1628CG-SYNC#PBF Datasheet - Page 32

• Manufacturer Part Number: LTC1628CG-SYNC#PBF
• Description: IC SW REG STEP-DOWN 28-SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1628CG-SYNC#PBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: Adj to 0.8V
• Current - Output: 3A
• Frequency - Switching: 140kHz ~ 310kHz
• Voltage - Input: 3.5 ~ 30 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

LTC1628-SYNC
RELATED PARTS
PART NUMBER
LTC1735
LTC1778/LTC1778-1
LT1976
LTC3708
LTC3727/LTC3727A-1
LTC3728
LTC3729
LTC3731
LTC3827-1
LTM4600
No R
32
TYPICAL APPLICATIO
SENSE
and PolyPhase are trademarks of Linear Technology Corporation.
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
OPEN
90°
90°
DESCRIPTION
High Efficiency Synchronous Step-Down
Switching Regulator
No R
Controllers
Dual, 2-Phase, DC/DC Controller with Output Tracking
Dual, 2-Phase, DC/DC Controller for High V
Dual, 550kHz, 2-Phase Synchronous Step-Down
Controller
20A to 200A, 550kHz PolyPhase Synchronous Controller Expandable from 2-Phase to 12-Phase, Uses All Surface Mount
3- to 12-Phase Step-Down Synchronous Controller
Low I
10A DC/DC µModule
●
FAX: [phone]
PHASMD
CLKOUT
PLLIN
LTC1628-SYNC
SENSE
Q
LTC1629
2-Phase Duel Synchronous Controller
U1
U2
Current Mode Synchronous Step-Down
TG1
TG2
TG1
TG2
0°
180°
90°
270°
U
●
www.linear-tech.com
Figure 14. Multioutput Multiphase Application
I
I
I
I
1
2
3
4
BUCK: 2.5V/15A
BUCK: 2.5V/15A
BUCK: 1.5V/15A
BUCK: 1.8V/15A
I
IN
OUT
2.5V
1.5V
1.8V
1628 F14
O
O
O
/30A
/15A
/15A
COMMENTS
Output Fault Protection, 16-Pin SSOP
I
Current Mode, No R
Dual 180° Phased Controllers, V
5 × 5 QFN, SSOP-28
Components, V
60A to 240A Output Current, 0.6V ≤ V
0.8V ≤ V
Onboard: Inductor, MOSFET, Complete Circuit; 4.5V ≤ V
0.6V ≤ V
Up to 97% Efficiency, 4V ≤ V
OUT
C
IN
Up to 20A
12V
OUT
OUT
IN
≤ 10V; I
≤ 5V; 15mm × 15mm × 2.8mm LGA Package
*INPUT RIPPLE CURRENT CANCELLATION
INCREASES THE RIPPLE FREQUENCY AND
REDUCES THE RMS INPUT RIPPLE CURRENT
THUS, SAVING INPUT CAPACITORS
IN
I
Up to 36V
IN
I
I
I
I
*
1
2
3
4
SENSE
Q
= 80µA, 4µ ≤ V
, Up/Down Tracking, Synchronizable
IN
≤ 36V, 0.8V ≤ V
© LINEAR TECHNOLOGY CORPORATION 2005
IN
3.5V to 35V, 99% Duty Cycle,
IN
OUT
≤ 36V
LT 1205 REV A • PRINTED IN USA
≤ 6V, 4.5V ≤ V
OUT
≤ (0.9)(V
IN
IN
≤ 28V;
≤ 32V
IN
1628syncfa
),