Parameters |
Lifecycle Status |
NRND (Last Updated: 4 days ago) |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
8-TSSOP, 8-MSOP (0.118, 3.00mm Width) |
Number of Pins |
8 |
Operating Temperature |
-40°C~125°C TJ |
Packaging |
Tape & Reel (TR) |
JESD-609 Code |
e0 |
Part Status |
Not For New Designs |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
8 |
Termination |
SMD/SMT |
ECCN Code |
EAR99 |
Terminal Finish |
Tin/Lead (Sn/Pb) |
Subcategory |
Switching Regulator or Controllers |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Terminal Pitch |
0.65mm |
Frequency |
400kHz |
Base Part Number |
LM3478 |
Function |
Step-Up, Step-Up/Step-Down |
Number of Outputs |
1 |
Output Voltage |
1.26V |
Output Type |
Transistor Driver |
Max Output Current |
1A |
Input Voltage-Nom |
12V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive |
Output Current |
1A |
Voltage - Supply (Vcc/Vdd) |
2.97V~40V |
Quiescent Current |
2.7mA |
Control Features |
Enable, Frequency Control |
Topology |
Boost, Flyback, SEPIC |
Control Mode |
CURRENT-MODE |
Frequency - Switching |
100kHz~1MHz |
Max Input Voltage |
45V |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
No |
Nominal Input Voltage |
12V |
Switcher Configuration |
SINGLE |
Max Duty Cycle |
100 % |
Height |
1.07mm |
Length |
3mm |
Width |
3mm |
Thickness |
970μm |
REACH SVHC |
No SVHC |
RoHS Status |
Non-RoHS Compliant |
Lead Free |
Contains Lead |
LM3478MM Overview
In the 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) package, the switching controller meets most application requirements. For 1 outputs, the dc motor controller is appropriate. Tape & Reel (TR) solid enclosure protects the pmic. Transistor Driver dc switching's outputs (s) are supported. This dc control has a supply voltage and operating voltage of 2.97V~40V. Suitable for a -40°C~125°C TJ dc switcher. In this switching controller, the switch can be set to 100kHz~1MHz. dc dc regulators can be carried out with Surface Mount. In order to control switching efficiently, the dcdc regulator features Enable, Frequency Control. Switch converters are connected to ICs with SWITCHING CONTROLLER analog outputs. The switching converters's terminals (s) are designed at DUAL. A variety of terminations with 8 of dc switching. The control methods that these dc dc converter ics use include PULSE WIDTH MODULATION. 12V nominal DC switcher's voltage input. You can find other relevant dc to dc converter ics by searching "LM3478". In total, switching converter has 8 pins. Specially, switching converter corresponds to type Switching Regulator or Controllers. Statistically, DC regulator outputs 1.26V volts. normally, the dc dc regulator's output current is 1A, which you should keep in mind when starting a project. Power-up and power-down reliability is ensured voltage regulator dc to dc by setting the maximum duty cycle to 100 %. In most applications and prototype designs, DC switcher is qualified as a Surface Mount. 400kHz is the frequency of the switching controller. During dormancy, the dc switching uses 2.7mA. It is possible to set the input voltage as 12V for nominal working statuses. Since the dc switcher's maximum input voltage is 45V, the voltage must be regulated accordingly. There will be 1A current output from the dc switcher above 1A.
LM3478MM Features
Transistor Driver Outputs
Switching Frequency: 100kHz~1MHz
Enable, Frequency Control
PULSE WIDTH MODULATION
Max Duty Cycle: 100 %
Frequency: 400kHz
LM3478MM Applications
There are a lot of Texas Instruments LM3478MM DC to DC converter applications.
- Smoke exhaust equipment
- Electric heating, lighting
- Game consoles
- Refrigerators of central air conditioners
- Product burn-in
- Medical monitoring systems
- Terrestrial set-top boxes
- Laboratories
- Smart grid
- PSRR circuits