EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
DD PACKAGE
8-LEAD (3mm
×
3mm) PLASTIC DFN
θ
JA
= 43°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT8570EDD#PBF
LT8570IDD#PBF
LT8570HDD#PBF
LT8570EMS8E#PBF
LT8570IMS8E#PBF
LT8570HMS8E#PBF
LT8570EDD-1#PBF
LT8570IDD-1#PBF
LT8570HDD-1#PBF
LT8570EMS8E-1#PBF
LT8570IMS8E-1#PBF
LT8570HMS8E-1#PBF
TAPE AND REEL
LT8570EDD#TRPBF
LT8570IDD#TRPBF
LT8570HDD#TRPBF
LT8570EMS8E#TRPBF
LT8570IMS8E#TRPBF
LT8570HMS8E#TRPBF
LT8570EDD-1#TRPBF
LT8570IDD-1#TRPBF
LT8570HDD-1#TRPBF
http://www.linear.com/product/LT8570#orderinfo
PART MARKING*
LGRY
LGRY
LGRY
LTGRZ
LTGRZ
LTGRZ
LGSB
LGSB
LGSB
LTGSC
LTGSC
LTGSC
PACKAGE DESCRIPTION
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead (3mm
×
3mm) Plastic DFN
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
TEMPERATURE RANGE
– 40°C to 125°C
– 40°C to 125°C
– 40°C to 150°C
– 40°C to 125°C
– 40°C to 125°C
– 40°C to 150°C
– 40°C to 125°C
– 40°C to 125°C
– 40°C to 150°C
– 40°C to 125°C
– 40°C to 125°C
– 40°C to 150°C
LT8570EMS8E-1#TRPBF
LT8570IMS8E-1#TRPBF
LT8570HMS8E-1#TRPBF
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/.
Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
2
85701fa
For more information
www.linear.com/LT8570
LT8570/LT8570-1
ELECTRICAL CHARACTERISTICS
PARAMETER
Operating Voltage Range
Positive Feedback Voltage
Negative Feedback Voltage
Positive FBX Pin Bias Current
Negative FBX Pin Bias Current
Error Amplifier Transconductance
Error Amplifier Voltage Gain
Quiescent Current
Quiescent Current in Shutdown
Reference Line Regulation
Switching Frequency, f
OSC
Switching Frequency in Foldback
Switching Frequency Set Range
SYNC High Level for Synchronization
SYNC Low Level for Synchronization
SYNC Clock Pulse Duty Cycle
Recommended Minimum SYNC Ratio
f
SYNC
/f
OSC
Minimum Off-Time
Minimum On-Time
Switch Current Limit
V
SHDN
= 2.5V, Not Switching
V
SHDN
= 0V
2.55V ≤ V
IN
≤ 40V
R
T
= 56.2k
R
T
= 422k
Compared to Normal f
OSC
SYNCing or Free Running
CONDITIONS
– 40°C to 125°C
– 40°C to 150°C
l
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 5V, V
SHDN
= V
IN
unless otherwise noted. (Note 2)
MIN
2.55
2.9
1.185
–3
81
81
1.204
3
83.3
83.3
200
60
1.2
0
0.01
1.5
200
1/6
1.7
1
0.05
1.77
235
1500
0.4
65
3/4
100
100
0.75
0.5
0.4
0.375
0.25
0.2
250
250
0.01
6
1.31
1.27
40
44
12
0
ns
ns
A
A
A
A
A
A
mV
mV
µA
µA
V
V
mV
V
µA
µA
µA
TYP
MAX
40
40
1.220
12
85
86
UNITS
V
V
V
mV
µA
µA
µmhos
V/V
mA
µA
%/V
MHz
kHz
Ratio
kHz
V
V
%
V
FBX
= Positive Feedback Voltage, Current Into Pin
V
FBX
= Negative Feedback Voltage, Current Out of Pin
l
l
l
l
1.23
165
200
1.3
35
l
l
l
V
SYNC
= 0V to 2V
Switch V
CESAT
Switch Leakage Current
Soft-Start Charging Current
SHDN
Minimum Input
Voltage High
SHDN
Minimum Input Voltage Hysteresis
SHDN
Input Voltage Low
SHDN
Pin Bias Current
Minimum Duty Cycle (Note 3), LT8570
Maximum Duty Cycle (Notes 3, 4), LT8570, f
OSC
= 1.5MHz
Maximum Duty Cycle (Notes 3, 4), LT8570, f
OSC
= 200kHz
Minimum Duty Cycle (Note 3), LT8570-1
Maximum Duty Cycle (Notes 3, 4), LT8570-1, f
OSC
= 1.5MHz
Maximum Duty Cycle (Notes 3, 4), LT8570-1, f
OSC
= 200kHz
I
SW
= 0.4A (LT8570)
I
SW
= 0.2A (LT8570-1)
V
SW
= 5V
V
SS
= 0.5V
Active Mode,
SHDN
Rising
Active Mode,
SHDN
Falling
Shutdown Mode
V
SHDN
= 3V
V
SHDN
= 1.3V
V
SHDN
= 0V
l
l
l
l
l
l
0.6
0.27
0.15
0.3
0.15
0.075
1
0.85
0.8
0.5
0.43
0.4
l
l
l
4
1.23
1.21
1
8
1.4
1.33
0.3
56
15
0.1
l
9
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 LT8570E/LT8570-1E are guaranteed to meet performance
specifications from 0°C to 125°C junction temperature. Specifications over
the –40°C to 125°C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls. The
LT8570I/LT8570-1I are guaranteed over the full –40°C to 125°C operating
junction temperature range. The LT8570H/LT8570-1H are guaranteed over
the full –40°C to 150°C operating junction temperature range. Operating
lifetime is derated at junction temperatures greater than 125°C.
Note 3:
Current limit guaranteed by design and/or correlation to static test.
Note 4:
Current limit measured at equivalent of listed switching frequency.
Note 5:
This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 150°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
Last night, I studied the I2S UDA1380 & SD_FatFS routines in Qingke Demo. According to the instructions in the user manual, I plugged in the UDA1380 board, put the SD card on the board, and put Audio....
On February 20, Beijing time, the Falcon 9 mission launched by SpaceX on Sunday was a complete success. SpaceX not only successfully sent the Dragon spacecraft to the International Space Station (ISS)...
[i=s]This post was last edited by littleshrimp on 2021-10-2 12:15[/i]Yesterday, when I was testing the WI-FI routine, it prompted "flow is low wait flow timeout 0", and I suspected that there was a pr...
[align=left][color=#000000]As the title says, I want to debug the program through breakpoints, but when setting breakpoints, a prompt box as shown in the figure appears, prompting that the [font=Times...
Is there any brother or sister who is working on intelligent water heater control? Please share with me. Regarding temperature control (constant temperature):)...
While
the solid-state battery
industry is still engaged in a long technological marathon for
the "ultimate solution" for
electric vehicles
, some companies have begun looking for mor...[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]
On August 21st, Zhiyuan Robotics revealed at its first partner conference that it expects shipments to reach thousands of units this year and tens of thousands next year. The company hopes to reach...[Details]
On August 22, the Wall Street Journal reported on the 21st local time that the new US government does not plan to acquire equity in semiconductor wafer foundry giant TSMC and Micron, one of the thr...[Details]
Civilian internal combustion engines operate in the range of approximately 1000-4000 rpm. This results in the engine's kinetic energy being ineffective at low or high rpm, making starting difficult...[Details]
As the core of electric vehicles, batteries are concerned with vehicle use and maintenance. The operation of vehicles is guaranteed by the electricity generated by batteries. For batteries, battery...[Details]
Recently, UBTECH announced its patent for "robot self-battery replacement structure, device and method".
The Qichacha patent abstract shows that the robot's self-battery replacement stru...[Details]
Vision is the most sensitive and direct way for humans to perceive things. It allows us to acquire a wealth of information about our surroundings without physical contact. However, due to the compl...[Details]
Currently, PLCs are widely used in various industries, including special machine tools, machine tools, control systems, building automation, steel, petrochemicals, electricity, building materials, ...[Details]
PLC is the foundation of modern industry. Although it is a product of the Second Industrial Revolution, it has experienced nearly a century of ups and downs. Not only has it not disappeared, but it...[Details]
introduction
Due to their flexibility and security, Java cards are increasingly being used in the smart card field. Once a Java card is released, if multiple applications need to call the same...[Details]
1. Overview of the current status and future development of the bionic market
Bionic robots, innovative products that integrate biomechanics and robotics, have experienced explosive growth...[Details]
Momenta's self-developed assisted driving chip has been successfully launched and entered the actual vehicle testing phase. This is the first time that Momenta has "settled" its own algorithm on an...[Details]
Recently, seven A-share listed companies have responded intensively to disclose
their progress in
the solid-state
battery
sector.
On the battery side, Penghui Energy,
Guoxuan H...[Details]
With the increasing awareness of environmental protection and the tightening of emission regulations and standards, almost all car companies are moving towards new energy, whether they are internat...[Details]
RF/Wirelessly
京公网安备 11010802033920号
EEWORLD
