XCL221B181ER-G

XCL221B181ER-G is a XCL221 series HiSAT-COT ® control 0.5A inductor built-in step-down “micro DC/DC” converter that integrates an inductor and a control IC in one tiny package. An internal coil simplifies the circuit and enables the minimization of noise and other operational trouble due to the circuit wiring. A wide operating voltage range of 2.5V to 5.5V enables support for applications that require an internally fixed output voltage of 0.8V to 3.6V. This uses synchronous rectification at an operating frequency of 1.2MHz. It uses HiSAT-COT synchronous rectification. HiSAT-COT+PWM control. This has a high speed soft-start as fast as 0.3ms in typical for quick turn-on. With the built-in UVLO function, the internal P-channel driver transistor is forced OFF when input voltage becomes 2.0V or lower. Application includes wearable device, Bluetooth module, SSD(Solid State Drive), mobile phone, digital still camera, portable game devices.

• 500mA output current, 93% (VIN=5.0V, VOUT=3.3V/200mA) efficiency
• HiSAT-COT, 100% duty cycle, PWM control method
• Thermal shut down, current limit circuit (drop), short circuit protection (latch)
• Soft-start circuit built-in, UVLO, CL discharge function
• Low ESR ceramic output capacitor
• Typical thermal shutdown is 150°C
• Maximum output current is a 500mA (min, VIN =<lt/>C-1<gt/>)
• Stand-by current is 1.0μA (max, VCE =0V)
• Soft-start time is 0.30ms (typ, VCE=0V→5.0V, VOUT=VOUT(T)V × 0.9)
• CL-2025-02 package, operating ambient temperature range from -40 to 105°C

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.