LTC3614 LINER [Linear Technology], LTC3614 Datasheet - Page 28

• Manufacturer Part Number: LTC3614
• Description: 4A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter
• Manufacturer: LINER [Linear Technology]

LTC3614
RELATED PARTS
PART NUMBER
LTC3616
LTC3612
LTC3418
LTC3415
LTC3416
LTC3413
LTC3412A
28
TYPICAL APPLICATION
3.3V
1.8V
V
V
DD
IN
R6
562k
R7
187k
C1
22μF
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
4
DDR Termination With Ratiometric Tracking of V
DESCRIPTION
5.5V, 6A (I
Converter
5.5V, 3A (I
Converter
5.5V, 8A (I
Converter
5.5V, 7A (I
Converter
5.5V, 4A (I
Converter
5.5V, 3A (I
Regulator for DDR/QDR Memory Termination
5.5V, 2.5A (I
Converter
R4
1M
R5
1M
PGOOD
●
C
2.2nF
OUT
OUT
OUT
OUT
OUT
OUT
L1: COILCRAFT DO3316T
FAX: [phone]
C
R
6k
OUT
C
) 4MHz Synchronous Step-Down DC/DC
), 4MHz, Synchronous Step-Down DC/DC
), 4MHz, Synchronous Step-Down DC/DC
), 1.5MHz, Synchronous Step-Down DC/DC
), 4MHz, Synchronous Step-Down DC/DC
R3
100k
Sink/Source), 2MHz, Monolithic Synchronous
), 4MHz, Synchronous Step-Down DC/DC
R8
365k
C
10pF
C1
RUN
TRACK/SS
RT/SYNC
PGOOD
ITH
MODE
SV
●
IN
www.linear.com
LTC3614
SRLIM/DDR
PV
V
FB
SGND
PGND
IN
R2
200k
SW
0.33μH
DD
L1
200k
22pF
R1
C3
, 1MHz
3614 TA04a
C4
100μF
COMMENTS
95% Effi ciency, V
I
95% Effi ciency, V
I
95% Effi ciency, V
I
95% Effi ciency, V
I
95% Effi ciency, V
I
90% Effi ciency, V
I
95% Effi ciency, V
I
Q
Q
Q
Q
Q
Q
Q
= 70μA, I
= 70μA, I
= 380μA, I
= 450μA, I
= 64μA, I
= 280μA, I
= 60μA, I
C5
47μF
SD
SD
SD
SD
SD
SD
SD
500mV/DIV
< 1μA, 3mm × 5mm QFN24 Package
<1μA, 3mm × 4mm QFN-20 TSSOP20E Package
<1μA, TSSOP20E Package
<1μA, 4mm × 4mm QFN-16 TSSOP16E Package
V
0.9V
±3A
<1μA, 5mm × 7mm QFN-38 Package
<1μA, 5mm × 7mm QFN-38 Package
<1μA, TSSOP16E Package
TT
IN(MIN)
IN(MIN)
IN(MIN)
IN(MIN)
IN(MIN)
IN(MIN)
IN(MIN)
= 2.25V, V
= 2.25V, V
= 2.25V, V
= 2.5V, V
= 2.25V, V
= 2.25V, V
= 2.5V, V
© LINEAR TECHNOLOGY CORPORATION 2010
IN(MAX)
IN(MAX)
Ratiometric Start-Up
IN(MAX)
IN(MAX)
IN(MAX)
IN(MAX)
IN(MAX)
= 5.5V, V
= 5.5V, V
500μs/DIV
= 5.5V, V
= 5.5V, V
= 5.5V, V
= 5.5V, V
= 5.5V, V
LT 0310 • PRINTED IN USA
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
V
V
= 0.6V,
= 0.8V,
DD
TT
= 0.6V,
= 0.6V,
= 0.8V,
= 0.8V,
= V
3614 TA04b
REF
3614f
/2,