STK740-220A, STK740-230, STK740-441 Selling Leads, Datasheet
MFG:SANYO Package Cooled:BGA D/C:04+
STK740-220A, STK740-230, STK740-441 Datasheet download
Part Number: STK740-220A
MFG: SANYO
Package Cooled: BGA
D/C: 04+
STK740-220A, STK740-230, STK740-441
- Table of contents:
Info of STK740-220A
Info of STK740-230
Info of STK740-441
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About STK00100II
PDF/DataSheet Download
Datasheet: STK00100II
File Size: 114521 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About STK00100II
PDF/DataSheet Download
Datasheet: STK00100II
File Size: 114521 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About STK740-441
PDF/DataSheet Download
Datasheet: STK740-441
File Size: 136082 KB
Manufacturer: Sanyo
Download : Click here to Download
STK740-441 General Description
The STK740-441 is a separate-excitation step-down chopper regulator hybrid IC for the secondstage circuit and optimal as a 3.3V local power supply for use in logic circuit that includes both 5V and 3.3V systems. This IC incorporates in the package all the necessary circuits for a chopper regulator including power switch, error amplifier, soft start, shutdown type output short protection, low-voltage malfunction prevention, on/off, and snubber circuits. Therefore, external components required are input and output capacitors and choke coil only and this allows this IC to be used to construct a large-current (5A) chopper regulator as if a 3-pin regulator were used.
STK740-441 Maximum Ratings
| Parameter | Symbol | Conditions | Ratings | Unit |
| Operating IC substrate temperature | Tc max | +105 | °C | |
| Operating temperature | Topr | 10 to +85 | °C | |
| Storage temperature | Tstg | 30 to +115 | °C | |
| DC input voltage | VIN max | Pins 6, 11, and 12 | 10 | V |
STK740-441 Features
• Adoption of Sanyo IMST ; Insulated Metal Substrate Technology, allows the circuit to be operated without using a heat sink (see "No Fin Output Current Derating" chart in the page 6).
• Slim package reduces mounting space.
• Typical efficiency of 88% at DC 5V input, 2.5A output.
• Fine adjustment of output voltage enable.
• 50 kHz operating frequency.
• Low-RON resistance power MOSFET adopted.
• Low-VF Schottky barrier diode adopted.
STK740-441 Typical Application
• 3.3V local power supply for the logic circuit where both 5V and 3.3V systems are constructed togeter.
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