LT1767/LT1767-1.8/
LT1767-2.5/LT1767-3.3/LT1767-5
20
1767fb
For more information www.linear.com/LT1767
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
LINEAR TECHNOLOGY CORPORATION 1999
LT 1114 REV B • PRINTED IN USA
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LT1767
Typical applicaTion
relaTeD parTs
PART NUMBER DESCRIPTION COMMENTS
LT1936 36V, 1.5A, 500kHz, Step-Down Regulator 90% Efficiency, V
IN
= 3.6V to 36V, V
OUT(MIN)
= 1.2V, I
Q
= 1.8mA,
I
SC
<1µA, MSOP-8E
LT3505 36V, 1.2A, 3MHz, Step-Down Regulator 90% Efficiency, V
IN
= 3.6V to 36V, V
OUT(MIN)
= 0.78V, I
Q
= 2mA,
I
SC
<2µA, 3mm×3mm DFN-8, MSOP-8E
LTC3600 15V, 1.5A, 4MHz, Synchronous Rail-to-Rail Single Resistor
Step-Down Regulator
95% Efficiency, V
IN
= 4V to 15V, V
OUT(MIN)
= 0V, I
Q
= 700µA,
I
SC
<1µA, 3mm×3mm DFN-12, MSOP-12E
LTC3621/
LTC3621-2
17V, 1.5A, 1/2.25MHz, Synchronous Step-Down Regulator 95% Efficiency, V
IN
= 2.7V to 17V, V
OUT(MIN)
= 0.6V, I
Q
= 3.5µA,
I
SC
<1µA, 2mm×3mm DFN-6, MSOP-8E
LTC3624/
LTC3624-2
17V, 2A, 1/2.25MHz, Synchronous Step-Down Regulator 95% Efficiency, V
IN
= 2.7V to 17V, V
OUT(MIN)
= 0.6V, I
Q
= 3.5µA,
I
SC
<1µA, 3mm×3mm DFN-8
LTC3622/
LTC3622-2
17V, Dual 1A (I
OUT
), 1/2.25MHz, Synchronous Step-Down
DC/DC Converter
95% Efficiency, V
IN
= 2.7V to 17V, V
OUT(MIN)
= 0.6V, I
Q
= 5µA,
I
SC
<1µA, 3mm×4mm DFN-14
LTC3646/
LTC3646-1
340V, 1A (I
OUT
), 4MHz, Synchronous
Step-Down
DC/DC Converter
95% Efficiency, V
IN
= 4V to 40V, V
OUT(MIN)
= 0.6V, I
Q
= 140µA,
I
SC
<8µA, 3mm×4mm DFN-14, MSOP16E
LT3685 36V (60V Transients), 2A (I
OUT
), 2.44MHz,
Step-Down
DC/DC Converter
90% Efficiency, V
IN
= 3.6V to 36V, V
OUT(MIN)
= 0.79V, I
Q
= 0.9mA,
I
SC
<14µA, 3mm×3mm DFN-10, MSOP-10E
LT3508 36V, Dual 1.4A, 2.5MHz, Step-Down Regulator 90% Efficiency, V
IN
= 3.7V to 36V, V
OUT(MIN)
= 0.8V, I
Q
= 2mA,
I
SC
<1µA, 4mm×4mm QFN-24, TSSOP-16E
BOOST
LT1767-3.3
V
IN
OUTPUT
3.3V
1.2A*
V
IN
12V
1767 TA01
C2
0.1µF
C
C
1.5nF
R
C
4.7k
D1
UPS120
C1
10µF
CERAMIC
C3
2.2µF
CERAMIC
D2
CMDSH-3
L1
5µH
V
SW
FBSHDN
OPEN
OR
HIGH
= ON
GND
V
C
SYNC
*MAXIMUM OUTPUT CURRENT IS SUBJECT TO THERMAL DERATING.
12V to 3.3V Step-Down Converter