CS403 overview
CS403 is a component documented by Cherry Semiconductor Co. The PDF description identifies it as "5V, 750mA Linear Regulator with RESET Rev. 2/18/98." This guide condenses the most useful engineering information from the available PDF so that designers and sourcing teams can identify the checks that still need confirmation in the original document.
Datasheet snapshot
- Manufacturer: Cherry Semiconductor Co...
- Part number: CS403
- Category: Power Management
- Datasheet length: 6 Pages
Specifications and operating details
The following points were extracted from the PDF text. Check the associated conditions, notes and limits in the complete document before using a value in a design.
- 5V OUT Regulated output voltage, 5V (typ).
- Reset Voltage (<1.0V) (1) (2) (2) V RT(ON) VOUT (3) VRT(OFF) VDH VDTD VDTC Delay VRL VRH VDIS TDelay Reset Circuit Waveform The CS403 function is very precise, has hysteresis on both the and Delay comparators, a latching Delay capacitor di.
- Step 1: Place the completed circuit with a tantalum capac- itor of the recommended value in an environmental cham- ber at the lowest specified operating temperature and monitor the outputs with an oscilloscope.
- Leave the decade box outside the chamber, the small resistance added by Stability Considerations Test Circuit C1* 100nF VIN Gnd Delay VOUT CS403 C2** COUT =10mF to 100mF 100nF Cd RESET C1* is required if the regulator is far from the power.
- Once the minimum capacitor value with the maximum ESR is found, a safety factor should be added to allow for the tolerance of the capacitor and any variations in regula- tor performance.
- Most good quality aluminum electrolytic capacitors have a tolerance of ± 20% so the minimum value found should be increased by at least 50% to allow for this tolerance plus the variation which will occur at low temperatures.
- Each material in the heat flow path between the IC and the outside environment will have a thermal resistance.
Topics covered by the datasheet
The document includes sections related to:
- Features
- Description
- Ordering Information
Engineering review checklist
- Verify capacitance tolerance, rated voltage, temperature range and any DC-bias derating.
- Check ESR, ripple-current capability, lifetime and polarity requirements under worst-case conditions.
- Confirm package dimensions, land pattern and reflow or mounting limits for the selected ordering code.
Always confirm values against the latest manufacturer-controlled datasheet, especially when qualifying a substitute or releasing a production BOM.
View the complete PDF and model record
Open the CS403 datasheet and model details to review the complete PDF, document pages and available product information.
Source attribution
Adapted from the PDF associated with this DigiCamel model page.
Source model URL: https://www.digicamel.com/product.php?slug=cs403-cherry-semiconductor-co