EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC1435ACG#TR

Description
Switching Regulator LTC1435A - High Efficiency Low Noise Synchronous Step-Down Switching Regulator
CategoryPower/power management    The power supply circuit   
File Size353KB,20 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC1435ACG#TR Overview

Switching Regulator LTC1435A - High Efficiency Low Noise Synchronous Step-Down Switching Regulator

LTC1435ACG#TR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerADI
package instructionSSOP-16
Reach Compliance Codenot_compliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage30 V
Minimum input voltage3.5 V
Nominal input voltage15 V
JESD-30 codeR-PDSO-G16
JESD-609 codee0
length6.2 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature70 °C
Minimum operating temperature
Maximum output current2 A
Maximum output voltage9 V
Minimum output voltage1.19 V
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP16,.3
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height2 mm
surface mountYES
Switch configurationPUSH-PULL
Maximum switching frequency138 kHz
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width5.3 mm
LTC1435A
High Efficiency Low Noise
Synchronous Step-Down
Switching Regulator
FEATURES
s
s
s
s
DESCRIPTION
The LTC
®
1435A is a synchronous step-down switching
regulator controller that drives external N-channel power
MOSFETs using a fixed frequency architecture. A wide
duty cycle range of 5% to 99% allows high V
IN
to low V
OUT
DC/DC conversion, as well as low dropout operation that
extends operating time in battery-operated systems. Burst
Mode
TM
operation provides high efficiency at low load
currents.
The operating frequency is set by an external capacitor
allowing maximum flexibility in optimizing efficiency. A
secondary winding feedback control pin, SFB, guarantees
regulation regardless of load on the main output by
forcing continuous operation. Burst Mode operation is
inhibited when the SFB pin is pulled low, which reduces
noise and RF interference.
Soft start is provided by an external capacitor that can be
used to properly sequence supplies. The operating cur-
rent level is user-programmable via an external current
sense resistor. Wide input supply range allows operation
from 3.5V to 30V (36V maximum).
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a trademark of Linear Technology Corporation.
s
s
s
s
s
s
s
s
s
s
Dual N-Channel MOSFET Synchronous Drive
Programmable Fixed Frequency
Wide V
IN
Range: 3.5V to 36V Operation
Low Minimum On-Time (
300ns) for High
Frequency, Low Duty Cycle Applications
Very Low Dropout Operation: 99% Duty Cycle
Low Standby Current
Secondary Feedback Control
Programmable Soft Start
Remote Output Voltage Sense
Logic Controlled Micropower Shutdown: I
Q
< 25µA
Foldback Current Limiting (Optional)
Current Mode Operation for Excellent Line and Load
Transient Response
Output Voltages from 1.19V to 9V
Available in 16-Lead Narrow SO and SSOP Packages
APPLICATIONS
s
s
s
s
s
Notebook and Palmtop Computers, PDAs
Cellular Telephones and Wireless Modems
Portable Instruments
Battery-Operated Devices
DC Power Distribution Systems
TYPICAL APPLICATION
V
IN
4.5V TO 22V
C
OSC
43pF
C
OSC
C
SS
0.1µF
C
C
330pF
R
C
10k
SGND
100pF
V
OSENSE
SENSE
BG
PGND
SENSE
+
RUN/SS
I
TH
LTC1435A
INTV
CC
BOOST
V
IN
TG
SW
M1
Si4412DY
+
C
IN
22µF
35V
×
2
R
SENSE
0.033Ω
D
B
CMDSH-3
C
B
0.1µF
L1
4.7µH
+
4.7µF
M2
Si4412DY
D1
MBRS140T3
1000pF
Figure 1. High Efficiency Step-Down Converter
U
U
U
V
OUT
1.6V/3A
R1
35.7k
R2
102k
+
C
OUT
100µF
6.3V
×
2
1435A F01
1

LTC1435ACG#TR Related Products

LTC1435ACG#TR LTC1435AIG#TR
Description Switching Regulator LTC1435A - High Efficiency Low Noise Synchronous Step-Down Switching Regulator Switching Regulator LTC1435A - High Efficiency Low Noise Synchronous Step-Down Switching Regulator
Is it Rohs certified? incompatible incompatible
Maker ADI ADI
package instruction SSOP-16 SSOP-16
Reach Compliance Code not_compliant not_compliant
ECCN code EAR99 EAR99
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER
control mode CURRENT-MODE CURRENT-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 30 V 30 V
Minimum input voltage 3.5 V 3.5 V
Nominal input voltage 15 V 15 V
JESD-30 code R-PDSO-G16 R-PDSO-G16
JESD-609 code e0 e0
length 6.2 mm 6.2 mm
Number of functions 1 1
Number of terminals 16 16
Maximum operating temperature 70 °C 85 °C
Maximum output current 2 A 2 A
Maximum output voltage 9 V 9 V
Minimum output voltage 1.19 V 1.19 V
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SSOP SSOP
Encapsulate equivalent code SSOP16,.3 SSOP16,.3
Package shape RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH
Certification status Not Qualified Not Qualified
Maximum seat height 2 mm 2 mm
surface mount YES YES
Switch configuration PUSH-PULL PUSH-PULL
Maximum switching frequency 138 kHz 138 kHz
technology CMOS CMOS
Temperature level COMMERCIAL INDUSTRIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING
Terminal pitch 0.65 mm 0.65 mm
Terminal location DUAL DUAL
width 5.3 mm 5.3 mm
Problems with precision voltage regulators TL431 and LM336
[size=18px]【Ask if you don't understand】[/size] [size=18px]Regarding the application of two precision voltage regulators, I don't understand the following[/size] [size=18px]【1】In Figure (1), TL431 is ...
shaorc Analog electronics
How to connect multiple, Pcm4222, pcm1792, to Ti's dsp in DSD mode?
How to connect multiple Pcm4222, pcm1792 to Ti's dsp in DSD mode?What is TDM mode?How to connect Tms320vc5402 to asynchronous SRam?...
ssawee DSP and ARM Processors
120℃ low temperature cooking
[align=left][color=rgb(85, 85, 85)][font=Microsoft Blackbody, Verdana, Arial, Helvetica, sans-serif][size=15px]Did you know that oils and fats only need to be heated to 100~120? ℃ will begin to crack....
wangfuchong Talking
Car driving recorder based on LPC2104 CPU
With the increase in the number of cars, the probability of traffic accidents also increases. After an accident, it is difficult to analyze, judge and repair with traditional methods. This raises a qu...
frozenviolet Automotive Electronics
How to deploy third-party controls to wince? When running, it prompts that the dll of the third-party control cannot be found
How to deploy third-party controls to wince? When running, it prompts that the dll of the third-party control cannot be found...
sunyitui Embedded System
CC2500 transmits normally, but receives abnormal data
I made a CC2500 module. The data transmitted by the module is normal, but the received data is all abnormal. I have been looking for the reason for two days but have not found it. The program problem ...
chenjiyou0886pf RF/Wirelessly

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 844  1290  766  2172  2454  17  26  16  44  50 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号