Linear Technology Analog Devices LT8607, Datasheet, Page: 22 / 22

LT8607/LT8607B
22
Rev. C
For more information www.analog.com
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ANALOG DEVICES, INC. 2018
11/18
www.analog.com
PART NUMBER DESCRIPTION COMMENTS
LT8606 42V, 350mA, 92% Efficiency, 2.2MHz Synchronous MicroPower
Step-Down DC/DC Converter with I
Q
= 3µA
V
IN
: 3V to 42V, V
OUT
= 0.778V, I
Q
= 3µA, I
SD
= <1µA,
MSOP-10E Package
LT8608 42V, 1.5A, 92% Efficiency, 2.2MHz Synchronous MicroPower
Step-Down DC/DC Converter with I
Q
= 2.5µA
V
IN
: 3V to 42V, V
OUT
= 0.778V, I
Q
= 2.5µA, I
SD
= <1µA,
MSOP-10E Package
LT8609/LT8609A/
LT8609B
42V, 2A/3A Peak, 93% Efficiency, 2.2MHz Synchronous MicroPower Step-
Down DC/DC Converter with I
Q
= 2.5µA
V
IN
: 3V to 42V, V
OUT
= 0.782V, I
Q
= 2.5µA, I
SD
= <1µA,
MSOP-10E Package
LT8609S 42V, 2A/3A Peak, 93% Efficiency, 2.2MHz Synchronous Silent Switcher
®
2
Step-Down DC/DC Converter with I
Q
= 2.5µA
V
IN
: 3V to 42V, V
OUT
= 0.774V, I
Q
= 2.5µA, I
SD
= <1µA,
3mm × 3mm LQFN-16 Package
LT8610A/LT8610AB/
LT8610AC
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
= 0.97V, I
Q
= 2.5µA, I
SD
= <1µA,
MSOP-16E Package
LT8616 42V, Dual 2.5A + 1.5A, 95% Efficiency, 2.2MHz Synchronous MicroPower
Step-Down DC/DC Converter with I
Q
= 5µA
V
IN
: 3.4V to 42V, V
OUT
= 0.8V, I
Q
= 5µA, I
SD
= <1µA,
TSSOP-28E, 3mm × 6mm QFN-28 Packages
LT8620 65V, 2.5A, 96% Efficiency, 2.2MHz Synchronous MicroPower
Step-Down DC/DC Converter with I
Q
= 2.5µA
V
IN
: 3.4V to 65V, V
OUT
= 0.97V, I
Q
= 2.5µA, I
SD
= <1µA,
MSOP-16E 3mm × 5mm QFN-24 Packages
LT8614 42V, 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
= 0.97V, I
Q
= 2.5µA, I
SD
= <1µA,
3mm × 4mm QFN-18 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
= 0.97V, I
Q
= 3µA, I
SD
= <1µA,
3mm × 6mm QFN-28 Package
LT8640 42V, 5A, 96% Efficiency, 3MHz Synchronous MicroPower Step-Down DC/
DC Converter with I
Q
= 2.5µA
V
IN
: 3.4V to 42V, V
OUT
= 0.97V, I
Q
= 2.5µA, I
SD
= <1µA,
3mm × 4mm QFN-18 Package
LT8640S 42V, 6A, 96% Efficiency, 3MHz Synchronous Silent Switcher 2
Step-Down DC/DC Converter with I
Q
= 2.5µA
V
IN
: 3.4V to 42V, V
OUT
= 0.97V, I
Q
= 2.5µA, I
SD
= <1µA,
4mm × 4mm LQFN-24 Package
LT8645S 65V, 8A, 96% Efficiency, 3MHz Synchronous Silent Switcher 2
Step-Down DC/DC Converter with I
Q
= 2.5µA
V
IN
: 3.4V to 65V, V
OUT
= 0.97V, I
Q
= 2.5µA, I
SD
= <1µA,
4mm × 6mm LQFN-32 Package
LT8602 42V, Quad Output (2.5A+1.5A+1.5A+1.5A) 95% Efficiency, 2.2MHz
Synchronous MicroPower Step-Down DC/DC Converter with I
Q
= 25µA
V
IN
: 3V to 42V, V
OUT
= 0.8V, I
Q
= 25µA, I
SD
= <1µA,
6mm × 6mm QFN-40 Package
RELATED PARTS
TYPICAL APPLICATION
5V and 3.3V with Ratio Tracking
C7
0.1µF
C8
4.7µF
C10
22µF
8607 TA07
C11
10pF
L2
2.2µH
R5
18.2k
R10
22k
R6
1M
R7
309k
L2: XFL3012-222ME
C2, C4, C8, C10: X7R 1206
R8
100k
C12
1µF
V
IN
EN/UV
SYNC
LT8607
(MSOP)
INTV
CC
TR/SS
RT
GND
FB
PG
SW
BST
V
OUT
3.3V
750mA
POWER
GOOD
f
SW
= 2MHz
C1
0.1µF
C2
4.7µF
C3
1µF
C4
22µF
C5
10pF
L1
4.7µH
R1
18.2k
R2
1M
R3
187k
L1: XFL4020-472ME
R4
100k
C6
10nF
V
IN
EN/UV
SYNC
LT8607
(MSOP)
INTV
CC
TR/SS
RT
GND
FB
PG
SW
BST
V
IN
5.7V to 42V
V
OUT
5.0V
750mA
POWER
GOOD
f
SW
= 2MHz
R9
80.6k