LTC1159CS-3.3 Linear Technology, LTC1159CS-3.3 Datasheet - Page 20

• Manufacturer Part Number: LTC1159CS-3.3
• Description: IC SW REG STEP-DOWN 3.3V 16-SOIC
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1159CS-3.3

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 50mA
• Frequency - Switching: 250kHz
• Voltage - Input: 4 ~ 40 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

RELATED PARTS
LTC1159
LTC1159-3.3/LTC1159-5
PART NUMBER
LTC1628
LTC1702
LTC1735
LTC1773
LTC1778
LTC1876
No R
20
TYPICAL APPLICATIO
SHUTDOWN
SENSE
is a trademark of Linear Technology Corporation.
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone]
5V OR 3.3V
**
*
Q3
TP0610L
20k
510k
DALE TJ4-100-1
IRC LR2512-01-R050-J
DESCRIPTION
2-Phase, Dual Step-Down Controller
550kHz Dual, 2-Phase Step-Down Controller
Synchronous Step-Down Controller
550kHz Synchronous Step-Down Controller
No R
Triple Output, 2-Phase Controller
SENSE
TM
5.1V
1N5993
Step-Down Controller
C
390pF
T
U
1N5818
1k
1N4148
Figure 15. High Efficiency 12V to –12V 1A Converter
6800pF
0.1 F
www.linear.com
1
2
3
4
5
6
7
8
100
P-GATE
V
V
P-DRIVE
V
C
I
SENSE
TH
IN
CC
CC
T
LTC1159
+
–
1000pF
0.15 F
3.3 F
(SHDN1)
SENSE
EXTV
N-GATE
SHDN2
PGND
SGND
CAP
V
CC
FB
COMMENTS
V
Minimum C
2.65V V
No Sense Resistor Required, t
Two, 2-Phase Step-Down Controllers and Step-Up DC/DC Converter in One IC
3.5V V
+
IN
16
15
14
13
12
11
10
9
36V, Minimum C
100
IN
IN
IN
36V, 0.8V V
, No Sense Resistor Required, V
8.5V, 0.8V V
Q4
2N7002
200pF
IN
Si9435
, Current Mode
Q1
OUT
OUT
ON(MIN)
V
10.5k
90.5k
IN
6V, Synchronizable
= 12V
V
Q2
Si9410
IN
, Synchronizable to 750kHz, MS10
+
1159fa LT/TP 0801 2K REV A • PRINTED IN USA
100ns, Current Mode, GN16
150 F
16V 2
OS-CON
LINEAR TECHNOLOGY CORPORATION 1994
MBRS140
0.1 F
IN
7V
3
4
+
1
2
L*
100 H
R
0.05
330 F
35V
NICHICON
SENSE
**
1159 F15
OUTPUT
–12V/1A