1 Inductor-integrated synchronous step-down DC/DC converter, eliminating external inductor requirement

2 Ultra-compact package size:2.5mm×2.0mm×1.0mm, ideal for space-constrained designs

3 Wide input voltage range:1.8V~6.0V (G type), compatible with diverse power sources

4 Fixed output voltage (1.8V for this model) with ±2% accuracy, ensuring stable power supply

5 High output current capacity: up to 600mA, meeting medium-load demands

6 3.0MHz fixed oscillation frequency, enabling use of small external capacitors

7 Manual PWM/PFM switching control (XCL207 series feature), balancing efficiency and ripple across load ranges

8 Built-in protection functions: under-voltage lockout (UVLO), current limit (constant current + latching), CL auto-discharge (G type), soft start

9 Low standby current: ≤1.0μA, reducing idle power consumption

10 High conversion efficiency: up to90% (at VIN=4.2V, VOUT=3.3V, PWM mode)

11 Operating temperature range:-40°C~85°C, adaptable to harsh environments

12 RoHS compliant and Pb-free, environmentally friendly

1 Portable consumer electronics: smartphones, mobile phones, Bluetooth headsets, portable game consoles

2 Personal digital devices: WiMAX PDAs, MIDs (Mobile Internet Devices), UMPCs (Ultra-Mobile PCs), electronic dictionaries

3 Imaging equipment: digital cameras, camcorders

4 Battery-powered or low-voltage input devices needing compact, stable step-down power conversion

1 Operate within absolute maximum ratings (voltage, current, temperature) to avoid device damage

2 Place input capacitor (CIN=4.7μF ceramic) close to VIN/VSS pins to stabilize voltage and oscillation frequency

3 Mount external components (CIN, CL) near the IC with short, thick traces to minimize impedance

4 Ensure GND traces are thick enough to prevent ground potential variations

5 If input-output voltage difference is large, parallel an electrolytic capacitor with CL to avoid oscillation

6 Do not exceed power dissipation limits; consider PCB thermal design for heat dissipation

7 In PWM mode, high step-down ratio + light load may cause intermittent oscillation; verify with actual loads

8 When VIN<2.4V, current limit may not activate due to driver transistor ON resistance voltage drop

9 Avoid leaving CE/MODE pin open; use correct voltage levels (H/M/L) for desired operation modes

10 For CL auto-discharge function, calculate discharge time using t=τln(VOUT(T)/V) (τ=CL×RDCHG, RDCHG=300Ω typical)

XCL207G183CR-G-PDF数据手册-参考资料