LTC3416
16
3416fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2004
LT 1205 REV A • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT1616 500mA (I
OUT
), 1.4MHz, High Efficiency Step-Down 90% Efficiency, V
IN
: 3.6V to 25V, V
OUT
= 1.25V,
DC/DC Converter I
Q
= 1.9mA, I
SD
< 1µA, ThinSOT Package
LT1676 450mA (I
OUT
), 100kHz, High Efficiency Step-Down 90% Efficiency, V
IN
: 7.4V to 60V, V
OUT
= 1.24V,
DC/DC Converter I
Q
= 3.2mA, I
SD
< 2.5µA, S8 Package
LT1765 25V, 2.75A (I
OUT
), 1.25MHz, High Efficiency Step-Down 90% Efficiency, V
IN
: 3V to 25V, V
OUT
= 1.2V,
DC/DC Converter I
Q
= 1mA, I
SD
< 15µA, S8, TSSOP16E Packages
LT1776 500mA (I
OUT
), 200kHz, High Efficiency Step-Down 90% Efficiency, V
IN
: 7.4V to 40V, V
OUT
= 1.24V,
DC/DC Converter I
Q
= 3.2mA, I
SD
< 30µA, N8, S8 Packages
LTC1879 1.20A (I
OUT
), 550kHz, Synchronous Step-Down 95% Efficiency, V
IN
: 2.7V to 10V, V
OUT
= 0.8V,
DC/DC Converter I
Q
= 15µA, I
SD
< 1µA, TSSOP16 Package
LTC3405/LTC3405A 300mA (I
OUT
), 1.5MHz, Synchronous Step-Down 95% Efficiency, V
IN
: 2.75V to 6V, V
OUT
= 0.8V,
DC/DC Converter I
Q
= 20µA, I
SD
< 1µA, ThinSOT Package
LTC3406/LTC3406B 600mA (I
OUT
), 1.5MHz, Synchronous Step-Down 95% Efficiency, V
IN
: 2.5V to 5.5V, V
OUT
= 0.6V,
DC/DC Converter I
Q
= 20µA, I
SD
< 1µA, ThinSOT Package
LTC3411 1.25A (I
OUT
), 4MHz, Synchronous Step-Down 95% Efficiency, V
IN
: 2.5V to 5.5V, V
OUT
= 0.8V,
DC/DC Converter I
Q
= 60µA, I
SD
< 1µA, MS, DFN Packages
LTC3412 2.5A (I
OUT
), 4MHz, Synchronous Step-Down 95% Efficiency, V
IN
: 2.5V to 5.5V, V
OUT
= 0.8V
DC/DC Converter I
Q
= 60µA, I
SD
< 1µA, TSSOP16E Package
LTC3413 3A (I
OUT
Sink/source), 2MHz, Monolithic Synchronous 90% Efficiency, V
IN
: 2.25V to 5.5V, V
OUT
= V
REF
/2,
Regulator for DDR/QDR Memory Termination I
Q
= 280µA, I
SD
< 1µA, TSSOP16E Package
LTC3414 4A (I
OUT
), 4MHz Synchronous Step-Down Regulator 95% Efficiency, V
IN
: 2.25V to 5V, V
OUT
to 0.8V, I
Q
= 64µA,
TSSOP28E Package
LTC3430 60V, 2.75A (I
OUT
), 200kHz, High Efficiency Step-Down 90% Efficiency, V
IN
: 5.5V to 60V, V
OUT
= 1.2V,
DC/DC Converter I
Q
= 2.5mA, I
SD
< 25µA, TSSOP16E Package
LTC3440 600mA (I
OUT
), 2MHz, Synchronous Buck-Boost 95% Efficiency, V
IN
: 2.5V to 5.5V, V
OUT
= 2.5V,
DC/DC Converter I
Q
= 25µA, I
SD
< 1µA, MS Package
TYPICAL APPLICATIO
U
L1*
0.68µH
C2
22pF
X7R
R2
174k
PV
IN
PV
IN
SV
IN
RUN
PGOOD
TRACK
R
T
SGND
PGND
PGND
SW
SW
SW
SW
V
FB
NC
NC
I
TH
PGND
PGND
7
14
16
4
17
3
2
5
1
10
8
9
12
13
19
6
15
18
20
11
C
ITH
820pF
X7R
R1
200k
R
ITH
7.5k
R
PG
100k
R3
174k
R4
200k
R
OSC
294k
VISHAY DALE IHLP-2525CZ-01 0.68µH
TDK C4532X5R0J107M
*
**
C
IN1
**
100µF
V
IN
5V
PGOOD
C
OUT
**
100µF
2×
C1
47pF
X7R
3416 TA01
V
OUT1
1.5V
4A
I/O SUPPLY 3.3V
LTC3416
1.5V, 4A Step-Down Regulator Tracking from 3.3V I/O Supply
Efficiency vs Load Current
LOAD CURRENT (A)
0.01
40
EFFICIENCY (%)
50
60
70
80
0.1 1 10
4316 TA02
30
20
10
0
90
100
