Datasheet

LT1934/LT1934-1
20
1934fe
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
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www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2002
LT 0209 REV E • PRINTED IN USA
BOOST
V
IN
LT1934
SHDN
1934 TA03
C2
2.2μF
0.1μF
10pF
C1: SANYO 6TPB68M
C2: TAIYO YUDEN GMK325BJ225MN
D1: ZETEX ZHCS400 OR ON SEMI MBR0540
D2: CENTRAL CMPD914
L1: SUMIDA CDRH5D28-680
V
OUT
5V
250mA
D2
332k
1M
L1
68μH
D1
V
IN
6.5V TO 34V
ON OFF
SW
FB
GND
C1
68μF
+
TYPICAL APPLICATION
5V Step-Down Converter
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT1616 25V, 500mA (I
OUT
), 1.4MHz, High Effi ciency
Step-Down DC/DC Converter
V
IN
= 3.6V to 25V, V
OUT
= 1.25V, I
Q
= 1.9mA, I
SD
< 1μA,
ThinSOT Package
LT1676 60V, 440mA (I
OUT
), 100kHz, High Effi ciency
Step-Down DC/DC Converter
V
IN
= 7.4V to 60V, V
OUT
= 1.24V, I
Q
= 3.2mA, I
SD
= 2.5μA,
S8 Package
LT1765 25V, 2.75A (I
OUT
), 1.25MHz, High Effi ciency
Step-Down DC/DC Converter
V
IN
= 3V to 25V, V
OUT
= 1.2V, I
Q
= 1mA, I
SD
= 15μA,
S8, TSSOP16E Packages
LT1766 60V, 1.2A (I
OUT
), 200kHz, High Effi ciency
Step-Down DC/DC Converter
V
IN
= 5.5V to 60V, V
OUT
= 1.2V, I
Q
= 2.5mA, I
SD
= 25μA,
TSSOP16/E Package
LT1767 25V, 1.2A (I
OUT
), 1.25MHz, High Effi ciency
Step-Down DC/DC Converter
V
IN
= 3V to 25V; V
OUT
= 1.2V, I
Q
= 1mA, I
SD
= 6μA,
MS8/E Packages
LT1776 40V, 550mA (I
OUT
), 200kHz, High Effi ciency
Step-Down DC/DC Converter
V
IN
= 7.4V to 40V; V
OUT
= 1.24V, I
Q
= 3.2mA, I
SD
= 30μA,
N8, S8 Packages
LT C
®
1877 600mA (I
OUT
), 550kHz, Synchronous
Step-Down DC/DC Converter
V
IN
= 2.7V to 10V; V
OUT
= 0.8V, I
Q
= 10μA, I
SD
< 1μA,
MS8 Package
LTC1879 1.2A (I
OUT
), 550kHz, Synchronous
Step-Down DC/DC Converter
V
IN
= 2.7V to 10V; V
OUT
= 0.8V, I
Q
= 15μA, I
SD
< 1μA,
TSSOP16 Package
LT1956 60V, 1.2A (I
OUT
), 500kHz, High Effi ciency
Step-Down DC/DC Converter
V
IN
= 5.5V to 60V, V
OUT
= 1.2V, I
Q
= 2.5mA, I
SD
= 25μA,
TSSOP16/E Package
LTC3405/LTC3405A 300mA (I
OUT
), 1.5MHz, Synchronous
Step-Down DC/DC Converter
V
IN
= 2.7V to 6V, V
OUT
= 0.8V, I
Q
= 20μA, I
SD
< 1μA,
ThinSOT Package
LTC3406/LTC3406B 600mA (I
OUT
), 1.5MHz, Synchronous
Step-Down DC/DC Converter
V
IN
= 2.5V to 5.5V, V
OUT
= 0.6V, I
Q
= 20μA, I
SD
< 1μA,
ThinSOT Package
LTC3411 1.25A (I
OUT
), 4MHz, Synchronous
Step-Down DC/DC Converter
V
IN
= 2.5V to 5.5V, V
OUT
= 0.8V, I
Q
= 60μA, I
SD
< 1μA,
MS Package
LTC3412 2.5A (I
OUT
), 4MHz, Synchronous
Step-Down DC/DC Converter
V
IN
= 2.5V to 5.5V, V
OUT
= 0.8V, I
Q
= 60μA, I
SD
< 1μA,
TSSOP16E Package
LTC3430 60V, 2.75A (I
OUT
), 200kHz, High Effi ciency
Step-Down DC/DC Converter
V
IN
= 5.5V to 60V, V
OUT
= 1.2V, I
Q
= 2.5mA, I
SD
= 30μA,
TSSOP16E Package