Parameters |
Factory Lead Time |
15 Weeks |
Mounting Type |
Surface Mount |
Package / Case |
40-VFQFN Exposed Pad |
Surface Mount |
YES |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
JESD-609 Code |
e3 |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
2 (1 Year) |
Number of Terminations |
40 |
Terminal Finish |
Matte Tin (Sn) |
Additional Feature |
O/P VOLTAGE ADJUSTABLE FROM 0.7V |
Terminal Position |
QUAD |
Terminal Form |
NO LEAD |
Peak Reflow Temperature (Cel) |
NOT SPECIFIED |
Terminal Pitch |
0.4mm |
Time@Peak Reflow Temperature-Max (s) |
NOT SPECIFIED |
Base Part Number |
ISL9444 |
JESD-30 Code |
S-PQCC-N40 |
Function |
Step-Down |
Number of Outputs |
3 |
Output Type |
Transistor Driver |
Input Voltage-Nom |
12V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive |
Voltage - Supply (Vcc/Vdd) |
4.5V~28V |
Control Features |
Enable, Frequency Control, Phase Control, Power Fail, Power Good, Soft Start, Tracking |
Input Voltage (Min) |
4.5V |
Topology |
Buck |
Control Mode |
CURRENT-MODE |
Frequency - Switching |
200kHz~1.2MHz |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
Yes |
Output Phases |
2 |
Height Seated (Max) |
1mm |
Length |
5mm |
Width |
5mm |
RoHS Status |
ROHS3 Compliant |
ISL9444IRZ-T Overview
Capsuled in the 40-VFQFN Exposed Pad package, the switching controller suits most application needs. 3 outputs are supported by the dc motor controller. PMIC is packaged in a solid enclosure of Tape & Reel (TR). The system can process Transistor Driver dc switching's outputs (s). Voltages 4.5V~28V are the dc control's supply voltage and operating voltage, respectively. Worked in an dc switcher with a -40°C~85°C TA rating. The switching controller is capable of switching at the 200kHz~1.2MHz position. dc dc regulators can be carried out with Surface Mount. DCDC regulator is controlled efficiently by Enable, Frequency Control, Phase Control, Power Fail, Power Good, Soft Start, Tracking. Switch converters are connected to ICs with SWITCHING CONTROLLER analog outputs. Thare switching converters has a terminal (s) at QUAD . A variety of 40 terminations are available in dc switching. The control methods that these dc dc converter ics use include PULSE WIDTH MODULATION. DC switcher's input voltageis set to 12V. ISL9444 can be searched for other relevant dc to dc converter ics. This dc dc voltage regulator should be powered by a voltage of 4.5V. This value is O/P VOLTAGE ADJUSTABLE FROM 0.7V so that DC to DC voltage regulator better serves the purpose.
ISL9444IRZ-T Features
Transistor Driver Outputs
Switching Frequency: 200kHz~1.2MHz
Enable, Frequency Control, Phase Control, Power Fail, Power Good, Soft Start, Tracking
PULSE WIDTH MODULATION
O/P VOLTAGE ADJUSTABLE FROM 0.7V
ISL9444IRZ-T Applications
There are a lot of Renesas Electronics America Inc. ISL9444IRZ-T DC to DC converter applications.
- Precision electronic equipment
- Network technology
- Emergency lighting monitoring equipment
- Access control systems
- Series voltage regulation circuits
- Alternators
- Special machining machine tools
- Digital precision reference circuits
- Overvoltage protection circuits in TV sets
- Direct power supply system