LT1943EFE#TR Linear Technology, LT1943EFE#TR Datasheet - Page 20

• Manufacturer Part Number: LT1943EFE#TR
• Description: IC REG SW QUAD TFT LCD 28-TSSOP
• Manufacturer: Linear Technology

Specifications of LT1943EFE#TR

• Applications: Converter, TFT, LCD
• Voltage - Input: 4.5 ~ 22 V
• Number Of Outputs: 4
• Voltage - Output: 1.25 ~ 40 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

RELATED PARTS
LT1943
20
PART NUMBER
LT1615/LT1615-1
LT1940
LT1944/LT1944-1
LT1945
LT1946/LT1946A
LT1947
LT3464
ThinSOT is a trademark of Linear Technology Corporation.
TYPICAL APPLICATIO
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
V
2.2µF
LOGIC
–10V
50mA
3.3V
1.5A
V
X5R
10V
OFF
DESCRIPTION
300mA/80mA (I
Step-Up DC/DC Converters
Dual Output 1.4A (I
Step-Down DC/DC Converter
Dual Output 350mA (I
Step-Up DC/DC Converter
Dual Output, Pos/Neg, 350mA (I
High Efficiency Step-Up DC/DC Converter
1.5mA (I
Step-Up DC/DC Converter
1.1A, 3MHz, TFT-LCD Triple Output Switching Regulator
85mA (I
Converter with Integrated Schottky and Output Disconnect PNP ThinSOT Package
●
10.0k
80.6k
FAX: [phone]
ZHCS400
22µF
10V
X5R
ZHCS400
SW
16.5k
10.0k
SW
CMDSH-3
), Constant Off-Time, High Efficiency Step-Up DC/DC V
), 1.2MHz/2.7MHz, High Efficiency
SW
0.47µF
16V
X5R
10pF
4.7µH
), Constant Off-Time, High Efficiency
OUT
B230A
U
10V X5R
2.7nF
0.22µF
SW
100pF
), Constant 1.1MHz, High Efficiency
7.5k
), Constant Off-Time, High Efficiency
10µH
●
5V Input, Quad Output TFT-LCD Power Supply
www.linear.com
4.5V TO 8V
V
SW
IN
SW4
NFB4
FB4
BIAS
BOOST
SW1
FB1
V
), Constant Off-Time,
4700pF
C1
10µF
10V
X5R
100pF
4.7k
V
V
IN
C2
LT1943
SW3
V
C3
68µH
30k
100pF
RUN-SS
1500pF
PGOOD
SS-234
4.7µH
SGND
SW2
GND
V
FB2
FB3
V
ON
C
E3
C4
T
COMMENTS
V
ThinSOT
V
TSSOP-16E Package
V
MS Package
V
MS Package
V
MS Package
V
MS Package
IN
IN
IN
IN
IN
IN
IN
100pF
: 1.2V to 15V, V
: 3V to 25V, V
: 1.2V to 15V, V
: 1.2V to 15V, V
: 2.75V to 16V, V
: 2.7V to 8V, V
: 2.3V to 10V, V
13k
2.2nF
0.015µF
B240A
TM
0.015µF
Package
232k
0.047µF
OUT(MIN)
2.2µF
OUT(MAX)
10.0k
X5R
35V
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
95.3k
10µF
10.0k
X5R
16V
: 1.2V, I
© LINEAR TECHNOLOGY CORPORATION 2003
: 34V, I
: 34V, I
: 34V, I
: ±34V, I
: 34V, I
: 34V, I
1943 TA03
0.47µF
35V
X5R
Q
LT/LT 0405 REV A • PRINTED IN USA
Q
: 2.5mA, I
Q
Q
: 9.5mA, I
Q
100k
: 20µA, I
: 20µA, I
Q
Q
: 25µA, I
: 20µA, I
: 20µA, I
500mA
V
30V
20mA
AV
13V
ON
DD
Si2343DS
SD
SD
SD
SD
SD
SD
SD
: <1µA,
: <1µA,
: <1µA,
: <1µA,
: <0.5µA,
: <1µA,
: <1µA,
1943fa