LTC1435A Linear Technology, LTC1435A Datasheet - Page 20

• Manufacturer Part Number: LTC1435A
• Description: High Efficiency Low Noise Synchronous Step-Down Switching Regulator
• Manufacturer: Linear Technology

RELATED PARTS
LTC1435A
TYPICAL
20
PART NUMBER
LTC1142HV/LTC1142
LTC1148HV/LTC1148
LTC1159
LT
LTC1430
LTC1436A/LTC1436A-PLL/
LTC1437A
LTC1438/LTC1439
LT1510
LTC1538-AUX
LTC1539
LTC1706-19
Pentium is a registered trademark of Intel Corporation.
®
1375/LT1376
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
100pF
10k
R
C
51pF
C
APPLICATION
C2
L1: SUMIDA CDRH125-10
1000pF
0.1 F
C
SS
INTV
C
330pF
C
68pF
C1
OSC
DESCRIPTION
Dual High Efficiency Synchronous Step-Down Switching Regulators
High Efficiency Sychronous Step-Down Switching
Regulator Controllers
High Efficiency Synchronous Step-Down Switching Regulator
1.5A, 500kHz Step-Down Switching Regulators
High Power Step-Down Switching Regulator Controller
High Efficiency Low Noise Synchronous Step-Down
Switching Regulators
Dual High Efficiency, Low Noise, Synchronous Step-Down
Switching Regulators
Constant-Voltage/ Constant-Current Battery Charger
Dual High Efficiency, Low Noise, Synchronous Step-Down
Switching Regulator
Dual High Efficiency, Low Noise, Synchronous Step-Down
Switching Regulator
VID Voltage Programmer
CC
1
2
3
4
5
6
7
8
C
RUN/SS
I
SFB
SGND
V
SENSE
SENSE
TH
OSC
OSENSE
–
+
LTC1435A
U
EXTV
INTV
BOOST
PGND
SW
V
TG
BG
CC
CC
IN
Low Dropout 2.9V/3A Converter
16
15
14
13
12
11
10
9
OPTIONAL:
CONNECT TO 5V
+
CMDSH-3
4.7 F
0.1 F
3.5V TO 20V
V
IN
M1
1/2 Si9802DY
M2
1/2 Si9802DY
10 H
+
L1
MBRS140T3
C
22 F
35V
IN
COMMENTS
Dual Synchronous, V
Synchronous, V
Synchronous, V
High Frequency, Small Inductor, High Efficiency
Switchers, 1.5A Switch
High Efficiency 5V to 3.3V Conversion at Up to 15A
Full-Featured Single Controller
Full-Featured Dual Controllers
1.3A, Li-Ion, NiCd, NiMH, Pb-Acid Charger
5V Standby in Shutdown
5V Standby in Shutdown
Creates a Programmable 1.3V to 2V Supply for Intel
Mobile Pentium
LTC1435A
2
R
0.033
SENSE
1435A TA03
®
IN
IN
100pF
LINEAR TECHNOLOGY CORPORATION 1998
II Processor When Used with the
1435af LT/GP 0798 4K • PRINTED IN USA
20V
40V, For Logic Threshold FETs
IN
R1
35.7k
1%
R2
24.9k
1%
20V
SGND
+
C
100 F
10V
V
2.9V/3A
OUT
OUT
2