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Typical Application; Related Parts - Linear Technology Analog Devices LT8607B Datasheet

42v, 750ma synchronous step-down regulator with 2.5ua quiescent current
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LT8607/LT8607B

TYPICAL APPLICATION

5.7V to 42V

RELATED PARTS

PART NUMBER
DESCRIPTION
LT8606
42V, 350mA, 92% Efficiency, 2.2MHz Synchronous MicroPower
Step-Down DC/DC Converter with I
LT8608
42V, 1.5A, 92% Efficiency, 2.2MHz Synchronous MicroPower
Step-Down DC/DC Converter with I
LT8609/LT8609A/
42V, 2A/3A Peak, 93% Efficiency, 2.2MHz Synchronous MicroPower Step-
LT8609B
Down DC/DC Converter with I
LT8609S
42V, 2A/3A Peak, 93% Efficiency, 2.2MHz Synchronous Silent Switcher
Step-Down DC/DC Converter with I
LT8610A/LT8610AB/
42V, 3.5A, 96% Efficiency, 2.2MHz Synchronous MicroPower
LT8610AC
Step-Down DC/DC Converter with I
LT8616
42V, Dual 2.5A + 1.5A, 95% Efficiency, 2.2MHz Synchronous MicroPower
Step-Down DC/DC Converter with I
LT8620
65V, 2.5A, 96% Efficiency, 2.2MHz Synchronous MicroPower
Step-Down DC/DC Converter with I
LT8614
42V, 4A, 96% Efficiency, 2.2MHz Synchronous MicroPower Step-Down
DC/DC Converter with I
LT8612
42V, 6A, 96% Efficiency, 2.2MHz Synchronous MicroPower Step-Down
DC/DC Converter with I
LT8640
42V, 5A, 96% Efficiency, 3MHz Synchronous MicroPower Step-Down DC/
DC Converter with I
LT8640S
42V, 6A, 96% Efficiency, 3MHz Synchronous Silent Switcher 2
Step-Down DC/DC Converter with I
LT8645S
65V, 8A, 96% Efficiency, 3MHz Synchronous Silent Switcher 2
Step-Down DC/DC Converter with I
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
22
5V and 3.3V with Ratio Tracking
V
IN
V
IN
C2
EN/UV
4.7µF
SYNC
LT8607
(MSOP)
INTV
CC
C3
TR/SS
1µF
RT
C6
10nF
R1
18.2k
f
= 2MHz
SW
V
IN
C8
EN/UV
4.7µF
SYNC
LT8607
R9
(MSOP)
INTV
80.6k
CC
TR/SS
R10
RT
22k
R5
C12
18.2k
1µF
f
= 2MHz
SW
= 3µA
Q
= 2.5µA
Q
= 2.5µA
Q
= 2.5µA
Q
= 2.5µA
Q
= 5µA
Q
= 2.5µA
Q
= 2.5µA
Q
= 2.5µA
Q
= 2.5µA
Q
= 2.5µA
Q
= 2.5µA
Q
For more information
BST
C1
0.1µF
SW
L1
R4
4.7µH
100k
PG
C5
FB
10pF
GND
R3
R2
187k
1M
L1: XFL4020-472ME
BST
C7
0.1µF
SW
L2
R8
2.2µH
100k
PG
C11
FB
10pF
GND
R7
R6
309k
1M
L2: XFL3012-222ME
8607 TA07
C2, C4, C8, C10: X7R 1206
COMMENTS
V
: 3V to 42V, V
IN
MSOP-10E Package
V
: 3V to 42V, V
IN
MSOP-10E Package
V
: 3V to 42V, V
IN
MSOP-10E Package
2
V
: 3V to 42V, V
®
IN
3mm × 3mm LQFN-16 Package
V
: 3.4V to 42V, V
IN
MSOP-16E Package
V
: 3.4V to 42V, V
IN
TSSOP-28E, 3mm × 6mm QFN-28 Packages
V
: 3.4V to 65V, V
IN
MSOP-16E 3mm × 5mm QFN-24 Packages
V
: 3.4V to 42V, V
IN
3mm × 4mm QFN-18 Package
V
: 3.4V to 42V, V
IN
3mm × 6mm QFN-28 Package
V
: 3.4V to 42V, V
IN
3mm × 4mm QFN-18 Package
V
: 3.4V to 42V, V
IN
4mm × 4mm LQFN-24 Package
V
: 3.4V to 65V, V
IN
4mm × 6mm LQFN-32 Package
V
: 3V to 42V, V
IN
= 25µA
6mm × 6mm QFN-40 Package
Q
www.analog.com
V
OUT
5.0V
750mA
POWER
GOOD
C4
22µF
V
OUT
3.3V
750mA
POWER
GOOD
C10
22µF
= 0.778V, I
= 3µA, I
OUT
Q
= 0.778V, I
= 2.5µA, I
OUT
Q
= 0.782V, I
= 2.5µA, I
OUT
Q
= 0.774V, I
= 2.5µA, I
OUT
Q
= 0.97V, I
= 2.5µA, I
OUT
Q
= 0.8V, I
= 5µA, I
OUT
Q
SD
= 0.97V, I
= 2.5µA, I
OUT
Q
= 0.97V, I
= 2.5µA, I
OUT
Q
= 0.97V, I
= 3µA, I
OUT
Q
= 0.97V, I
= 2.5µA, I
OUT
Q
= 0.97V, I
= 2.5µA, I
OUT
Q
= 0.97V, I
= 2.5µA, I
OUT
Q
= 0.8V, I
= 25µA, I
OUT
Q
SD
www.analog.com
 ANALOG DEVICES, INC. 2018
= <1µA,
SD
= <1µA,
SD
= <1µA,
SD
= <1µA,
SD
= <1µA,
SD
= <1µA,
= <1µA,
SD
= <1µA,
SD
= <1µA,
SD
= <1µA,
SD
= <1µA,
SD
= <1µA,
SD
= <1µA,
Rev. C
11/18

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