LM2750-ADJ Overview
Description
The LM2750 is a regulated switched-capacitor doubler that produces a low-noise output voltage. The 5-V output voltage option (LM2750-5.0) can supply up to 120 mA of output current over a 2.9-V to 5.6-V input range, as well as up to 40 mA of output current when the input voltage is as low as 2.7 V.
Key Features
- 1 Wide Input Voltage Range: 2.7 V to 5.6 V
- Inductorless Solution: Application Requires Only Three Small Ceramic Capacitors
- Fixed 5-V Output and Adjustable Output Voltage Options Available
- 85% Peak Efficiency – 70% Average Efficiency Over Li-Ion Input Range (2.9 V to 4.2 V)
- Output Current up to 120 mA With 2.9 V ≤ VIN ≤ 5.6 V – Output Current up to 40 mA With 2.7 V ≤ VIN ≤ 2.9 V
- Fixed 1.7-MHz Switching Frequency for a LowNoise, Low-Ripple Output Signal
- Pre-Regulation Minimizes Input Current Ripple, Keeping the Battery Line (VIN) Virtually Noise-Free
- Shutdown Supply Current Less Than 2 µA
- Tiny WSON Package With Outstanding Power Dissipation: Usually No Derating Required
