| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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3,150 pcs
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3150 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
25 pcs
|
25 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The MCP1603T-180I/OS from Microchip Technology is a fully-integrated 500mA synchronous buck regulator designed for applications requiring efficient power conversion. It features a fixed 1.8V output voltage and operates at a 2.0 MHz fixed-frequency PWM mode for heavy loads, providing a low noise and low-output ripple solution.
This regulator is ideal for battery-powered devices due to its high efficiency (over 90% typical) and low quiescent current (45 µA typical in PFM mode for MCP1603/L variants). It supports a wide input voltage range, making it suitable for 1-cell Li-Ion or 2-cell/3-cell NiMH/NiCd batteries. The device includes Undervoltage Lockout (UVLO) and Overtemperature Protection for enhanced reliability.
Packaged in a space-saving TSOT-23-5 package, the MCP1603T-180I/OS is designed for surface mount applications. Its integrated design minimizes external component count, contributing to a compact overall solution.
Key electrical characteristics include a 500mA output current, 1.8V fixed output, 2.7V input voltage range, and 2MHz switching frequency. The device also offers 100% duty cycle operation and automatic PWM-to-PFM mode transition for MCP1603/L variants, optimizing efficiency across varying load conditions.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.08 | $1.08 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The output voltage is fixed at 1.8V.
The nominal output current is 500mA.
The switching frequency is 2MHz under heavy load.
The operating junction temperature range is -40°C to 125°C.
It is available in SOT-23-5 Thin and TSOT-23-5 surface-mount packages.
Typical efficiency is over 90%.
Yes, it includes overtemperature protection.