Nisshinbo Micro Devices NC2600

The NC2600 is a compact 2A step-down DC/DC converter with synchronous rectification and with a PWM/PFM auto switching mode function to maintain the operating efficiency at a high level throughout a wide output current range.

Key features

• Powerful output current but a small footprint on the PCB
• Low quiescent current to extend battery life
• Operating mode pin to select PWM mode or automatically switching between PWM and PFM mode
• High 4 MHz operating frequency requiring small external components

Additional features

• Input voltage range (maximum rating): 2.3 V to 5.5 V (6.5 V)
• Operating temperature range: −40 °C to 85 °C
• Output voltage range: fixed 0.6 V to 3.3 V, adjustable 0.6 V to 5.5 V
• Output voltage accuracy: ±1.5% (V_set ≥ 1.2 V), ±18 mV (V_set < 1.2 V)
• Feedback voltage accuracy: ±9 mV
• Quiescent current: typ. 17 μA
• Switching frequency: typ.4.0 MHz (V_set = 1.8 V)
• UVLO detection voltage: typ.2.0 V
• Soft-Start Time: Typ. 0.15 ms, when Css is open
• Thermal shutdown: detection typ. 150°C, release typ. 120°C
• Output capacitor auto discharge function
• Latched current limit protection
• Package: WLCSP-8-P11 and DFN2020-8-GT 

Applications

• Smartphones
• Digital cameras
• Notebook-PCs
• Devices with Li-ion batteries