Parameters |
Mounting Type |
Surface Mount |
Package / Case |
20-WFQFN Exposed Pad |
Surface Mount |
YES |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2002 |
JESD-609 Code |
e3 |
Pbfree Code |
yes |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
20 |
ECCN Code |
EAR99 |
Terminal Finish |
Matte Tin (Sn) |
Additional Feature |
CAN ALSO OPERATE IN PFM MODE |
Subcategory |
Switching Regulator or Controllers |
Technology |
BICMOS |
Terminal Position |
QUAD |
Peak Reflow Temperature (Cel) |
260 |
Terminal Pitch |
0.65mm |
Time@Peak Reflow Temperature-Max (s) |
30 |
Base Part Number |
MAX1844 |
JESD-30 Code |
S-XQCC-N20 |
Function |
Step-Down |
Number of Outputs |
1 |
Output Type |
Transistor Driver |
Input Voltage-Nom |
5V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive |
Voltage - Supply (Vcc/Vdd) |
4.5V~5.5V |
Control Features |
Current Limit, Enable, On Time Control, Power Good |
Input Voltage (Min) |
4.5V |
Topology |
Buck |
Control Mode |
CURRENT-MODE |
Output Current-Max |
3A |
Frequency - Switching |
200kHz 300kHz 450kHz 600kHz |
Input Voltage (Max) |
5.5V |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
Yes |
Switcher Configuration |
PUSH-PULL |
Clock Sync |
No |
Height Seated (Max) |
0.8mm |
Length |
5mm |
Width |
5mm |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
MAX1844ETP+T Overview
It comes in a 20-WFQFN Exposed Pad package, so switching controller can be used for most applications. 1 outputs can be generated with the dc motor controller. PMIC is packaged in a solid enclosure of Tape & Reel (TR). There are Transistor Driver dc switching's output (s) that it can handle. A 4.5V~5.5V voltage is supplied to the dc control and used for operating it. A -40°C~85°C TA dc switcher is not a problem. There is a switch at 200kHz 300kHz 450kHz 600kHz that can be used with this controller. As it has a Surface Mount value, it can be used for general dc dc regulator. In order to control switching efficiently, the dcdc regulator features Current Limit, Enable, On Time Control, Power Good. Switch converters are connected to ICs with SWITCHING CONTROLLER analog outputs. switching converters terminal (s) are designed to be at QUAD. 20 terminations with a variety of function. PULSE WIDTH MODULATION is an example of one of the control techniques these dc dc converter ics adapt. DC switcher's voltage input is 5V. You can find other relevant dc to dc converter ics by searching "MAX1844". There is a particular type of Switching Regulator or Controllers in switching converter. It is recommended that the input voltage of the dc dc voltage regulator be 4.5V. Voltages 5.5V are the maximum that the dc to dc regulator will accept. The value of DC to DC voltage regulator is set to CAN ALSO OPERATE IN PFM MODE in order to better satisfy the requirement. Whenever the current value is 3A, switching converter outputs the highest possible value.
MAX1844ETP+T Features
Transistor Driver Outputs
Switching Frequency: 200kHz 300kHz 450kHz 600kHz
Current Limit, Enable, On Time Control, Power Good
PULSE WIDTH MODULATION
CAN ALSO OPERATE IN PFM MODE
MAX1844ETP+T Applications
There are a lot of Maxim Integrated MAX1844ETP+T DC to DC converter applications.
- Linear guide
- Game consoles
- Network technology
- Digital video recorders
- Industrial controllers
- Smoke prevention equipment
- Milling machines
- Computer application technology
- Special machining machine tools
- Electric heating, lighting