LT8610A/LT8610AB Series
26
8610abfa
For more information www.linear.com/LT8610A
LINEAR TECHNOLOGY CORPORATION 2013
LT 0814 REV A • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LT8610A
RELATED PARTS
TYPICAL APPLICATION
3.3V and 1.8V with Ratio Tracking Ultralow I
Q
2.5V, 3.3V Step-Down with LDO
BSTV
IN
EN/UV
SYNC
PG
INTV
CC
TR/SS
RT
SW
LT8610A/
LT8610AB
GND
BIAS
FB
0.1µF
V
3.3V
3.5A
4.7µF
IN
1µF
10nF
4.7pF
5.6µH
232k
97.6k
f
SW
= 500kHz
88.7k
BSTV
IN
EN/UV
SYNC
PG
INTV
CC
TR/SS
RT
SW
LT8610A/
LT8610AB
GND
BIAS
8610ab TA08
FB
0.1µF
V
1.8V
3.5A
4.7µF
1µF
4.7pF
3.3µH
80.6k
24.3k
93.1k
f
SW
= 500kHz
88.7k
10k
100µF*
1210
X5R
47µF*
1210
X7R
L: IHLP-2020CZ-01, 5.6µH
BSTV
IN
EN/UV
SYNC
PG
INTV
CC
TR/SS
RT
SW
LT8610AB-3.3
GND
BIAS
8610ab TA10
V
OUT
0.1µF
V
OUT1
3.3V
3.5A
4.7µF
IN
1µF
10nF
2.2µH
2.2µF
V
2.5V
20mA
f
SW
= 2MHz
18.2k
47µF
×2
1210
X7R
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)
= 0.97V, I
Q
= 2.5µA,
I
SD
< 1µA, MSOP-16E Package
LT8614 42V, 2.5A with 4A, 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)
= 0.97V, I
Q
= 2.5µA,
I
SD
< 1µA, 3mm × 6mm QFN-28 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)
= 0.97V, I
Q
= 2.5µA,
I
SD
< 1µA, 3mm × 5mm QFN-24 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
LT3971 38V, 1.2A, 2.2MHz High Efficiency Micropower Step-Down DC/DC
Converter with I
Q
= 2.8µA
V
IN
: 4.2V to 38V, V
OUT(MIN)
= 1.21V, I
Q
= 2.8µA,
I
SD
< 1µA, 3mm × 3mm DFN-10 and MSOP-10E Packages
LT3970 40V, 350mA, 2.2MHz High Efficiency Micropower Step-Down DC/DC
Converter with I
Q
= 2.5µA
V
IN
: 4.2V to 40V, V
OUT(MIN)
= 1.21V, I
Q
= 2.5µA,
I
SD
< 1µA, 3mm × 2mm DFN-10 and MSOP-10 Packages
LT3990 62V, 350mA, 2.2MHz High Efficiency MicroPower Step-Down DC/DC
Converter with I
Q
= 2.5µA
V
IN
: 4.2V to 62V, V
OUT(MIN)
= 1.21V, I
Q
= 2.5µA,
I
SD
< 1µA, 3mm × 3mm DFN-10 and MSOP-6E Packages
LT3480 36V with Transient Protection to 60V, 2A (I
OUT
), 2.4MHz, High Efficiency
Step-Down DC/DC Converter with Burst Mode Operation
V
IN
: 3.6V to 36V, Transient to 60V, V
OUT(MIN)
= 0.78V,
I
Q
= 70µA, I
SD
< 1µA, 3mm × 3mm DFN-10 and
MSOP-10E Packages
LT3980 58V with T
ransient 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
*Consider doubling output capacitance for LT8610AB if application requires low output voltage ripple in Burst Mode operation.
