LTC1147 Linear Technology, LTC1147 Datasheet - Page 16

• Manufacturer Part Number: LTC1147
• Description: High Efficiency Step-Down Switching Regulator Controllers
• Manufacturer: Linear Technology

LTC1147-3.3
LTC1147-5/LTC1147L
PACKAGE DESCRIPTIO
RELATED PARTS
PART NUMBER
LTC1142
LTC1143
LTC1147
LTC1148
LTC1149
LTC1159
LTC1174
LTC1265
LTC1267
LTC1435
16
TYPICAL
(0.203 – 0.254)
**
0.008 – 0.010
*
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
(0.254 – 0.508)
0.010 – 0.020
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
APPLICATION
0.016 – 0.050
0.406 – 1.270
DESCRIPTION
Dual High Efficiency Synchronous Step-Down Switching Regulator
Dual High Efficiency Step-Down Switching Regulator Controller
High Efficiency Step-Down Switching Regulator Controller
High Efficiency Step-Down Switching Regulator Controller
High Efficiency Step-Down Switching Regulator
High Efficiency Step-Down Switching Regulator
High Efficiency Step-Down and Inverting DC/DC Converter
High Efficiency Step-Down DC/DC Converter
Dual High Efficiency Synchronous Step-Down Switching Regulators
High Efficiency Low Noise Synchronous Step-Down Switching Regulator
45
**
*
COILTRONICS CTX20-4
KRL SP-1/2-A1-OR050
C
220pF
T
0 – 8 TYP
R
1k
C
C
3300pF
C
U
U
(1.346 – 1.752)
0.053 – 0.069
(0.355 – 0.483)
0.014 – 0.019
8-Lead Plastic Small Outline (Narrow 0.150)
1
2
3
4
3.3V/2A Output High Efficiency Regulator
Dimensions in inches (millimeters) unless otherwise noted.
V
C
I
SENSE
TH
IN
T
LTC1147-3.3
–
0.1 F
(LTC DWG # 05-08-1610)
SENSE
PDRIVE
0.01 F
SHDN
S8 Package
GND
+
8
7
6
5
SHUTDOWN
(1.270)
(0.101 – 0.254)
0.050
0.004 – 0.010
TYP
L*
20 H
Si4431DY
R
0.05
(5.791 – 6.197)
SENSE
0.228 – 0.244
COMMENTS
Dual Version of LTC1148
Dual Version of LTC1147
Nonsynchronous, 8-Lead, V
Synchronous, V
Synchronous, V
Synchronous, V
0.5A Switch, V
1.2A Switch, V
Dual Version of LTC1159
16-Pin Narrow SO/SSOP; Constant Frequency
MBRS130LT3
**
+
D1
LTC1147 • F12
C
220 F
10V
AVX
OUT
4V TO 14V
1
8
IN
IN
+
1147fd LT/TP 0698 REV D 2K • PRINTED IN USA
IN
IN
IN
V
IN
(4.801 – 5.004)
V
3.3V/2A
18.5V, Comparator
13V, Comparator
LINEAR TECHNOLOGY CORPORATION 1993
0.189 – 0.197*
OUT
20V
48V, for Standard Threshold FETs
40V for Logic Level MOSFETS
C
22 F
25V 2
2
7
IN
6
IN
3
16V
5
4
(3.810 – 3.988)
0.150 – 0.157**
SO8 0996