LT3470E...............................................– 40°C to 85°C
LT3470I ............................................. –40°C to 125°C
LT3470H ............................................ –40°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
PIN CONFIGURATION
TOP VIEW
FB 1
BIAS 2
BOOST 3
SW 4
9
8
7
6
5
SHDN
NC
V
IN
GND
TOP VIEW
SHDN
1
NC 2
V
IN
3
GND 4
8 FB
7 BIAS
6 BOOST
5 SW
DDB8 PACKAGE
8-LEAD (3mm
×
2mm) PLASTIC DFN
θ
JA
= 180°C/W
EXPOSED PAD (PIN 9) IS GROUND (MUST BE SOLDERED TO PCB)
TS8 PACKAGE
8-LEAD PLASTIC TSOT-23
θ
JA
= 140°C/W
ORDER INFORMATION
LEAD FREE FINISH
LT3470EDDB#TRMPBF
LT3470IDDB#TRMPBF
LT3470HDDB#TRMPBF
LT3470ETS8#PBF
LT3470ITS8#PBF
LT3470HTS8#PBF
LEAD BASED FINISH
LT3470EDDB
LT3470IDDB
LT3470HDDB
LT3470ETS8
LT3470ITS8
LT3470HTS8
TAPE AND REEL
LT3470EDDB#TRPBF
LT3470IDDB#TRPBF
LT3470HDDB#TRPBF
LT3470ETS8#TRPBF
LT3470ITS8#TRPBF
LT3470HTS8#TRPBF
TAPE AND REEL
LT3470EDDB#TR
LT3470IDDB#TR
LT3470HDDB#TR
LT3470ETS8#TR
LT3470ITS8#TR
LT3470HTS8#TR
PART MARKING
LBPN
LBPP
LCNR
LTBDM
LTBPW
LTCNQ
PART MARKING
LBPN
LBPP
LCNR
LTBDM
LTBPW
LTCNQ
PACKAGE DESCRIPTION
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead Plastic TSOT-23
8-Lead Plastic TSOT-23
8-Lead Plastic TSOT-23
PACKAGE DESCRIPTION
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead Plastic TSOT-23
8-Lead Plastic TSOT-23
8-Lead Plastic TSOT-23
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–40°C to 150°C
–40°C to 85°C
–40°C to 125°C
–40°C to 150°C
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–40°C to 150°C
–40°C to 85°C
–40°C to 125°C
–40°C to 150°C
Rev. E
2
For more information
www.analog.com
LT3470
ORDER INFORMATION
AUTOMOTIVE PRODUCTS**
LT3470EDDB#WTRMPBF
LT3470IDDB#WTRMPBF
LT3470HDDB#WTRMPBF
LT3470EDDB#WTRPBF
LT3470IDDB#WTRPBF
LT3470HDDB#WTRPBF
LBPN
LBPP
LCNR
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead (3mm
×
2mm) Plastic DFN
–40°C to 85°C
–40°C to 125°C
–40°C to 150°C
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications.
Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
**Versions
of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These
models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your
local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for
these models.
ELECTRICAL CHARACTERISTICS
PARAMETER
Minimum Input Voltage
Quiescent Current from V
IN
Quiescent Current from Bias
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 10V, V
SHDN
= 10V, V
BOOST
= 15V, V
BIAS
= 3V unless otherwise specified.
CONDITIONS
l
MIN
TYP
0.1
10
35
0.1
25
0.1
MAX
4
0.5
18
50
0.5
60
1.5
1.265
80
150
225
0.01
1.5
300
435
775
2
775
2
2.2
12
5
0.2
UNITS
V
µA
µA
µA
µA
µA
µA
V
nA
nA
nA
%/V
ns
µA
mV
mV
mA
mA
mV
mV
µA
mV
µA
V
mA
µA
V
V
V
SHDN
= 0.2V
V
BIAS
= 3V, Not Switching
V
BIAS
= 0V, Not Switching
V
SHDN
= 0.2V
V
BIAS
= 3V, Not Switching
V
BIAS
= 0V, Not Switching
V
FB
Falling
V
FB
= 1V, E- and I-Grade
l
l
l
l
FB Comparator Trip Voltage
FB Pin Bias Current (Note 3)
1.228
1.250
35
35
35
0.0006
500
0.7
H-Grade
FB Voltage Line Regulation
Minimum Switch Off-Time (Note 5)
Switch Leakage Current
Switch V
CESAT
Switch Top Current Limit
Switch Bottom Current Limit
Catch Schottky Drop
Catch Schottky Reverse Leakage
Boost Schottky Drop
Boost Schottky Reverse Leakage
Minimum Boost Voltage (Note 4)
BOOST Pin Current
SHDN
Pin Current
SHDN
Input Voltage High
SHDN
Input Voltage Low
I
SW
= 100mA
V
SHDN
= 2.5V
I
SW
= 100mA (TS8 Package)
I
SW
= 100mA (DD8 Package)
V
FB
= 0V
V
FB
= 0V
I
SH
= 100mA (TS8 Package)
I
SH
= 100mA (DD8 Package)
V
SW
= 10V
I
SH
= 30mA
V
SW
= 10V, V
BIAS
= 0V
4V < V
IN
< 40V
l
215
215
250
325
225
630
630
0.2
650
0.2
l
1.7
7
1
2.5
Rev. E
For more information
www.analog.com
3
LT3470
ELECTRICAL CHARACTERISTICS
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
The LT3470E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and
correlation with statistical process controls. The LT3470I specifications
are guaranteed over the –40°C to 125°C temperature range. LT3470H
specifications are guaranteed over –40°C to 150°C temperature range.
Note 3:
Bias current flows out of the FB pin.
Note 4:
This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the switch.
Note 5:
This parameter is assured by design and correlation with statistical
Hello everyone, if anyone has the technical description document about the register of msp430, please give it to me, thank you. Just the description document of the register will be fine...
[i=s]This post was last edited by Pilizhihuo on 2014-8-26 14:39[/i] In summary, the design of FPGA power supply is very complex, and it is necessary to comprehensively consider factors such as voltage...
I wonder if any of my friends have come into contact with Huawei HiSilicon's hi3510 chip? When I started talking to Huawei HiSilicon's marketing staff, they told me a so-called five-digit threshold. I...
Development environment: S3C2440, ADS1.2, PB5.0. Based on UL's BOOT code, 64M SDRAM was changed to 128M SDRAM. The hardware has been implemented. After the software was changed, a board was connected ...
There are many different ways of human-computer interaction. The more common ones are listed below:
Mouse interaction: Using a mouse to operate a computer and interact was the most common human...[Details]
On August 23rd, Geely's subsidiary, Jiyao Tongxing, announced it has the industry's largest advanced production capacity for tandao
batteries
, with eight production bases across China. Jiy...[Details]
Reflow soldering is a critical process in electronics assembly production, and the cleanliness of the reflow oven has a direct impact on product quality. Dust and residue accumulation within the ov...[Details]
When you are happily watching NBA or football, your wife asks you to turn off the lights in the bedroom. Would you be depressed? Of course, unless you are not afraid of your wife.
Now you are ...[Details]
To understand why car engines need gearboxes, we must first understand the characteristics of different types of engines. An engine refers to a machine that can convert a form of energy into kineti...[Details]
New energy pure electric vehicles generally accelerate faster than comparable fuel-powered vehicles, both from a standing start and while accelerating. Many believe this is simply due to the motor'...[Details]
Current Development Status of DVR Market
A DVR, or digital video recorder, uses a hard disk for recording, unlike traditional analog video recorders. It's often called a DVR because it's a com...[Details]
The structure of an LCD TV primarily consists of the LCD display module, power module, driver module (primarily including the main driver board and tuner board), and keypad module. LCD display modu...[Details]
As the scale and business applications of national e-government networks continue to expand, the data and services transmitted over them are becoming increasingly sensitive and critical. To protect...[Details]
Smartphones have become essential digital devices, and the growing number of smartphone-centric applications is enriching people's lives. As users, they desire a better app experience and a wider r...[Details]
Normally, we determine our location and where we want to go by comparing our surroundings with observation and simple GPS tools. However, this kind of reasoning is very difficult for self-driving c...[Details]
Wearable technology is taking off, with applications evolving rapidly, from smartwatches to fitness trackers and even smart wigs! Bluetooth Smart is at the center of this revolution. This is the se...[Details]
The fracture mechanism is stress concentration, which typically occurs at the capacitor lead pins or pad connection points, as shown in the figure. Under vibration, the capacitor lead pins and pad ...[Details]
1. Introduction
In 2015, Apple's new MacBook and Apple Watch both featured force-sensing technology, which Apple calls Force Touch. Each time a user presses the touchpad, the device not only p...[Details]
On August 20, Huawei Device announced that the all-new M7 is the first to feature an in-cabin laser vision solution. This solution offers enhanced active safety capabilities compared to primary vis...[Details]
Analogue and Mixed Signal
京公网安备 11010802033920号
EEWORLD
