EEWORLDEEWORLDEEWORLD

Part Number

Search

LTC3734_15

Description
Single-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs
File Size285KB,28 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet View All

LTC3734_15 Overview

Single-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs

LTC3734
Single-Phase,
High Efficiency DC/DC
Controller for Intel Mobile CPUs
FEATURES
n
DESCRIPTION
The LTC
®
3734 is a single-phase synchronous step-down
switching regulator controller that drives all N-channel
power MOSFETs in a constant frequency architecture. The
output voltage is programmable by six VID bits during
normal operation and by external resistors during initial
boot-up and deeper sleep state. The LTC3734 drives its
output stage at frequencies up to 550kHz. Powerful on-
chip gate drivers eliminate the need for external gate driver
ICs, thus simplifying the design.
An Intel compatible PSIB input is provided to select between
two modes of operation. Fully enhanced synchronous
mode achieves a very small output ripple and very fast
transient response while power saving mode realizes
very high efficiency. OPTI-LOOP
®
compensation allows
the transient response to be optimized for a wide range
of output capacitance and ESR values.
The LTC3734 is available in a small 5mm
×
5mm QFN
package. For 2-phase applications refer to the LTC3735.
L,
LT, LTC, LTM, OPTI-LOOP Burst Mode, Linear Technology and the Linear logo are registered
,
trademarks and Stage Shedding is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
Wide Input Voltage Range: 4V to 30V
±1% Output Voltage Accuracy
6-Bit IMVP-IV VID Code: V
OUT
= 0.7V to 1.708V
Intel Compatible Power Saving Mode (PSIB)
Power Good Output with Adaptive Masking
Lossless Voltage Positioning
Resistor Programmable V
OUT
at Boot-Up and
Deeper Sleep State
Resistor Programmable Deep Sleep Offset
Programmable Fixed Frequency: 210kHz to 550kHz
Adjustable Soft-Start Current Ramping
Foldback Output Current Limit
Short-Circuit Shutdown Timer with Defeat Option
Overvoltage Protection
Available in 32-Lead 5mm
×
5mm
×
0.8mm (Profile)
QFN Package
APPLICATIONS
n
Mobile and Desktop Computers
Internet Servers
TYPICAL APPLICATION
MCH_PG
DPRSLPVR
STP_CPUB
PSIB
FREQSET
6-BIT VID
VID5-VID0
PGOOD
R
C
3k
C
C
680pF
I
TH
RUN/SS
0.1µF
SGND
PV
CC
4.7µF BAT54A
BOOST
0.47µF
SW
SV
CC
4.5V TO 7V
0.1µF
3734 F01
TG
SW
BG
PGND
SENSE
+
SENSE
RBOOT
M1
M2
0.8µH
D1
0.002
C
IN
10µF
35V
×4
V
IN
5V TO 24V
+
12.7k
56.2k
1.27M
13.3k
1.27M
13.3k
LTC3734
C
OUT
270µF
2V
×3
V
OUT
0.7V TO 1.708V
20A
RDPRSLP
RDPSLP
V
OA+
OAOUT
V
OA–
100pF
4.5V TO 7V
Figure 1. High Current Step-Down Converter
3734fa
1
Large size digital tube drive circuit
In recent days, I have found a lot of large-size digital tube driving circuits on the Internet, but I don’t quite understand some things. I would appreciate your advice.Question 1: In the picture, the...
fjinbo Analog electronics
CAN 485 Industrial transmission modes and conversion
[align=left][color=rgb(51, 51, 51)][font=tahoma, arial, 宋体][align=center][b]User Manual[/b][/align] [b]>>>>>Overview[/b] CAN232MB/CAN485MB is an industrial-grade CAN-bus and serial bus communication c...
usbcan Automotive Electronics
Does anyone know whether earthworms can grow longer or have more segments after their tails are removed?
Does anyone know if an earthworm can grow longer, or have more segments, after its tail is removed? Normal earthworms usually have about 100 segments. As we all know, earthworms have the ability to re...
wangfuchong Talking
Problems with using JTAG to download programs to LPC2468
There is a problem when downloading with JLINk. Can any expert give me some guidance and tell me where the problem may be?...
faddist NXP MCU
The key to power amplifier design: performance of output matching circuit
Power losses reduce efficiency and power output capability. Soeren Laursen RF Micro Devices For any power amplifier (PA) design, the performance of the output matching circuit is critical. However, du...
JasonYoo RF/Wirelessly
Please give the picture a scientific name, I am confused
I have read a lot of information and summarized something, but I don't know what to call it specifically. I temporarily named it CC2530 key flow chart. I would like to ask you to give me a scientific ...
flying510 RF/Wirelessly

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1285  2718  546  363  949  26  55  11  8  20 
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