Parameters |
Mounting Type |
Surface Mount |
Package / Case |
20-WQFN Exposed Pad |
Surface Mount |
YES |
Number of Pins |
20 |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tube |
Published |
2002 |
Series |
Quick-PWM™ |
JESD-609 Code |
e3 |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
20 |
ECCN Code |
EAR99 |
Terminal Finish |
Matte Tin (Sn) |
Additional Feature |
ALSO REQUIRES A BATTERY VOLTAGE OF 4V TO 28V |
Subcategory |
Switching Regulator or Controllers |
Technology |
BICMOS |
Terminal Position |
QUAD |
Terminal Form |
NO LEAD |
Peak Reflow Temperature (Cel) |
260 |
Terminal Pitch |
0.65mm |
Time@Peak Reflow Temperature-Max (s) |
30 |
Base Part Number |
MAX1897 |
Function |
Step-Down |
Number of Outputs |
1 |
Qualification Status |
Not Qualified |
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 |
Input Voltage (Min) |
4.5V |
Topology |
Buck |
Control Mode |
VOLTAGE-MODE |
Frequency - Switching |
200kHz 300kHz 550kHz |
Input Voltage (Max) |
5.5V |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
Yes |
Switcher Configuration |
PUSH-PULL |
Max Frequency |
550kHz |
Height Seated (Max) |
0.75mm |
Length |
5mm |
Width |
5mm |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
MAX1897ETP+ Overview
In the 20-WQFN Exposed Pad package, the switching controller meets most application requirements. This dc motor controller can be used to generate outputs with 1 numbers. Tube solid enclosure protects the pmic. It is capable of dealing with Transistor Driver dc switching's output (s). dc switching'sDC control operates at 4.5V~5.5V volts and has 4.5V~5.5V supply voltage. A -40°C~85°C TA dc switcher is not a problem. In this switching controller, the switch can be set to 200kHz 300kHz 550kHz. Surface Mount makes it suitable for general dc dc regulator. In order to control switching efficiently, the dcdc regulator features Current Limit, Enable, On Time Control. SWITCHING CONTROLLER analog IC connects the switch converters. A switching converters's terminal (s) sits at the QUAD position. A variety of 20 terminations are available in dc switching. A few of the control techniques these dc dc converter ics adapt include PULSE WIDTH MODULATION. 5V nominal DC switcher's voltage input. MAX1897 can be used to locate other relevant dc to dc converter ics. In total, switching converter has 20 pins. Switching converter type is specifically Switching Regulator or Controllers. 4.5V should be the minimum input voltage for the dc dc voltage regulator. Voltages 5.5V are the maximum that the dc to dc regulator will accept. DC regulators have a maximum frequency of 550kHz. DC to DC voltage regulator has the value of ALSO REQUIRES A BATTERY VOLTAGE OF 4V TO 28V to better satisfy the requirement. The dc to dc voltage regulator is from the Quick-PWM? series.
MAX1897ETP+ Features
Transistor Driver Outputs
Switching Frequency: 200kHz 300kHz 550kHz
Current Limit, Enable, On Time Control
PULSE WIDTH MODULATION
ALSO REQUIRES A BATTERY VOLTAGE OF 4V TO 28V
MAX1897ETP+ Applications
There are a lot of Maxim Integrated MAX1897ETP+ DC to DC converter applications.
- Window air conditioners
- Motor controller circuits
- Nuclear power plants
- ATMs
- Program control systems
- Magnetohydrodynamic power
- Current source circuits
- Sensitive electronic devices
- Special machining machine tools
- Telecommunications equipment