LT1934-1 Linear Technology, LT1934-1 Datasheet - Page 20

• Manufacturer Part Number: LT1934-1
• Description: Micropower Step-Down Switching Regulators in ThinSOT
• Manufacturer: Linear Technology

TYPICAL APPLICATIO
LT1934/LT1934-1
20
RELATED PARTS
PART NUMBER
LT1616
LT1676
LT1765
LT1766
LT1767
LT1776
LTC
LTC1879
LT1956
LTC3405/LTC3405A
LTC3406/LTC3406B
LTC3411
LTC3412
LTC3430
®
1877
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone]
DESCRIPTION
25V, 500mA (I
Step-Down DC/DC Converter
60V, 440mA (I
Step-Down DC/DC Converter
25V, 2.75A (I
Step-Down DC/DC Converter
60V, 1.2A (I
Step-Down DC/DC Converter
25V, 1.2A (I
Step-Down DC/DC Converter
40V, 550mA (I
Step-Down DC/DC Converter
600mA (I
Step-Down DC/DC Converter
1.2A (I
Step-Down DC/DC Converter
60V, 1.2A (I
Step-Down DC/DC Converter
300mA (I
Step-Down DC/DC Converter
600mA (I
Step-Down DC/DC Converter
1.25A (I
Step-Down DC/DC Converter
2.5A (I
Step-Down DC/DC Converter
60V, 2.75A (I
Step-Down DC/DC Converter
OUT
OUT
OUT
OUT
OUT
OUT
), 550kHz, Synchronous
), 4MHz, Synchronous
), 4MHz, Synchronous
OUT
OUT
OUT
), 550kHz, Synchronous
), 1.5MHz, Synchronous
), 1.5MHz, Synchronous
OUT
OUT
6.5V TO 34V
OUT
OUT
OUT
), 200kHz, High Efficiency
), 1.25MHz, High Efficiency
), 500kHz, High Efficiency
), 1.25MHz, High Efficiency
), 200kHz, High Efficiency
), 1.4MHz, High Efficiency
), 100kHz, High Efficiency
), 200kHz, High Efficiency
ON OFF
U
V
IN
2.2 F
www.linear.com
C2
C1: SANYO 6TPB68M
C2: TAIYO YUDEN GMK325BJ225MN
D1: ZETEX ZHCS400 OR ON SEMI MBR0540
D2: CENTRAL CMPD914
L1: SUMIDA CDRH5D28-680
5V Step-Down Converter
V
SHDN
IN
LT1934
BOOST
GND
SW
FB
COMMENTS
V
ThinSOT Package
V
S8 Package
S8, TSSOP16E Packages
V
TSSOP16/E Package
V
MS8/E Packages
V
N8, S8 Packages
V
MS8 Package
V
V
TSSOP16/E Package
V
ThinSOT Package
V
ThinSOT Package
V
MS Package
V
TSSOP16E Package
V
TSSOP16E Package
D1
V
TSSOP16 Package
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
0.1 F
= 5.5V to 60V, V
= 3.6V to 25V, V
= 7.4V to 60V, V
= 5.5V to 60V, V
= 3V to 25V; V
= 7.4V to 40V; V
= 2.7V to 10V; V
= 2.7V to 10V; V
= 2.7V to 6V, V
= 2.5V to 5.5V, V
= 2.5V to 5.5V, V
= 2.5V to 5.5V, V
= 5.5V to 60V, V
= 3V to 25V, V
10pF
68 H
D2
L1
1M
332k
+
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
1934 TA03
= 1.2V, I
= 1.2V, I
C1
68 F
= 0.8V, I
V
5V
250mA
= 1.2V, I
= 1.25V, I
= 1.24V, I
= 1.2V, I
= 1.24V, I
= 0.8V, I
= 0.8V, I
= 1.2V, I
= 0.6V, I
= 0.8V, I
= 0.8V, I
OUT
Q
Q
Q
Q
= 1mA, I
Q
Q
Q
Q
= 20 A, I
LINEAR TECHNOLOGY CORPORATION 2002
Q
Q
Q
= 1mA, I
Q
Q
Q
= 2.5mA, I
= 10 A, I
= 15 A, I
= 2.5mA, I
= 2.5mA, I
= 20 A, I
= 60 A, I
= 60 A, I
= 1.9mA, I
= 3.2mA, I
= 3.2mA, I
www.DataSheet4U.com
SD
LT/TP 0703 1K • PRINTED IN USA
SD
SD
SD
SD
= 6 A,
SD
SD
SD
SD
= 15 A,
SD
SD
= <1 A,
SD
SD
SD
= <1 A,
= <1 A,
= <1 A,
= <1 A,
= <1 A,
= 25 A,
= 25 A,
= 30 A,
= <1 A,
= 2.5 A,
= 30 A,
1934f