Datasheet

LT8620
26
8620fa
For more information www.linear.com/LT8620
 LINEAR TECHNOLOGY CORPORATION 2014
LT 0515 REV A • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
Ultralow I
Q
2.5V, 3.3V Step-Down with LDO
BSTV
IN
EN/UV
SYNC
PG
INTV
CC
TR/SS
RT
SW
LT8620
GND
BIAS
8620 TA10
FB
0.1µF
V
OUT1
3.3V
2A
4.7µF
V
IN
3.8V TO 65V
1µF
10nF
10pF
1.8µH
1M
412k
2.2µF
V
OUT2
2.5V
20mA
f
SW
= 2MHz
L: XFL4020
18.2k
47µF
IN
LT3008-2.5
SHDN
OUT
SENSE
PART NUMBER DESCRIPTION COMMENTS
LT8610 42V, 2.5A, 96% Efficiency, 2.2MHz Synchronous Micropower Step-Down
DC/DC Converter with I
Q
= 2.5µA
V
IN
: 3.4V to 42V, V
OUT(MIN)
= 0.985V, I
Q
= 2.5µA,
I
SD
< 1µA, MSOP-16E Package
LT8610A/
LT8610AB
42V, 3.5A, 96% Efficiency, 2.2MHz Synchronous Micropower Step-Down
DC/DC Converter with I
Q
= 2.5µA
V
IN
: 3.4V to 42V, V
OUT(MIN)
= 0.985V, I
Q
= 2.5µA,
I
SD
< 1µA, MSOP-16E Package
LT8611 42V, 2.5A, 96% Efficiency, 2.2MHz Synchronous Micropower Step-Down
DC/DC Converter with I
Q
= 2.5µA and Input/Output Current Limit/Monitor
V
IN
: 3.4V to 42V, V
OUT(MIN)
= 0.985V, I
Q
= 2.5µA,
I
SD
< 1µA, 3mm × 5mm QFN-24 Package
LT8612 42V, 6A, 96% Efficiency, 2.2MHz Synchronous Micropower Step-Down
DC/DC Converter with I
Q
= 2.5µA
V
IN
: 3.4V to 42V, V
OUT(MIN)
= 0.985V, I
Q
= 3µA,
I
SD
< 1µA, 3mm × 6mm QFN-28 Package
LT8614 42V, 4A, 96% Efficiency, 2.2MHz Silent Switcher Synchronous
Micropower Step-Down DC/DC Converter with I
Q
= 2.5µA
V
IN
: 3.4V to 42V, V
OUT(MIN)
= 0.985V, I
Q
= 2.5µA,
I
SD
< 1µA, 3mm × 4mm QFN-20 Package
LT3690 36V with 60V Transient Protection, 4A, 92% Efficiency, 1.5MHz
Synchronous Micropower Step-Down DC/DC Converter with I
Q
= 70µA
V
IN
: 3.9V to 36V, V
OUT(MIN)
= 0.985V, I
Q
= 70µA,
I
SD
< 1µA, 4mm × 6mm QFN-26 Package
LT3991 55V, 1.2A, 2.2MHz High Efficiency Micropower Step-Down DC/DC
Converter with I
Q
= 2.8µA
V
IN
: 4.2V to 62V, V
OUT(MIN)
= 1.21V, I
Q
= 2.8µA,
I
SD
< 1µA, 3mm × 3mm DFN-10 and MSOP-10E Packages
LT3990 62V, 350mA, 2.2MHz High Efficiency Micropower Step-Down DC/DC
Converter with
I
Q
= 2.5µA
V
IN
: 4.2V to 65V, V
OUT(MIN)
= 1.21V, I
Q
= 2.5µA,
I
SD
< 1µA, 3mm × 3mm DFN-10 and MSOP-6E Packages
LT3980 58V with Transient Protection to 80V, 2A (I
OUT
), 2.4MHz, High Efficiency
Step-Down DC/DC Converter with Burst Mode Operation
V
IN
: 3.6V to 58V, Transient to 80V, V
OUT(MIN)
= 0.78V,
I
Q
= 85µA, I
SD
< 1µA, 3mm × 4mm DFN-16 and
MSOP-16E Packages
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com/LT8620
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