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LIMCHIP CO., LIMITED
Professional Electronic Components Distributor · HK · SZ · SG · Original Stock · Global Shipping
RFQ ListingPower Management ICs
A fully integrated 36 V, 3.5 A buck converter whose internal FETs and selectable 400 kHz/1.5 MHz clock cover industrial point-of-load rails with 99% duty-cycle dropout headroom. Windowed PGOOD and spread-spectrum EMI control ease system integration.
ManufacturerAnalog Devices
PackageFC2QFN-15 (3×3 mm, 0.75 mm height)
SeriesMAX42403
Power IC Specifications
| Parameter | Value / Specification |
|---|---|
| Function / Topology | 36 V synchronous buck converter with integrated high-side/low-side FETs delivering up to 3.5 A, 1.5 MHz/400 kHz fixed-frequency options, skip and forced-PWM modes |
| Package / Case | FC2QFN-15 (3×3 mm, 0.75 mm height) |
| Input Voltage | 4.5 V to 36 V |
| Output Voltage | Programmable 0.8 V to 14 V (400 kHz) / 0.8 V to 12 V (1.5 MHz) |
| Output Current | Up to 3.5 A |
| Switching Frequency | 400 kHz or 1.5 MHz options with spread-spectrum option |
| Quiescent Current | 27 µA in skip mode at no load |
| Dropout | 99% duty-cycle operation with low dropout |
| Protection | Overtemperature, overvoltage and short-circuit protection with accurate windowed PGOOD |
| Operating Temperature | -40°C to +125°C |
Power Features & Applications
- 4.5 V to 36 V input range with fully integrated high-side and low-side power switches
- Delivers up to 3.5 A with fixed 400 kHz or 1.5 MHz switching-frequency options
- 27 µA quiescent current in skip mode at no load keeps light-load losses low
- Programmable output from 0.8 V to 14 V (400 kHz) or 0.8 V to 12 V (1.5 MHz)
- 99% duty-cycle operation with low dropout rides through sagging industrial supply rails
- Precision enable thresholds and accurate windowed PGOOD flag for safety-critical supervision
- Spread-spectrum modulation option minimizes radiated EMI in noise-sensitive systems
- -40°C to +125°C operation in a compact 3×3 mm FC2QFN package
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Frequently Asked Questions
Is MAX42403AFLA+T available from LimChip?
LimChip can confirm current availability, price, quantity, date code and lead time for MAX42403AFLA+T by RFQ.
What should buyers check before ordering MAX42403AFLA+T?
Buyers should check voltage range, current rating, package, protection features and date code for MAX42403AFLA+T, together with live stock and traceable supply.
How do I request a quote for MAX42403AFLA+T?
Use the RFQ button and include required quantity, target date code, package/case requirement, delivery country, company name and contact details.