LM2776DBVR Description
The LM2776 CMOS charge-pump voltage converter inverts a positive voltage in the range from 2.7 V to 5.5 V to the corresponding negative voltage. The LM2776 uses three low-cost capacitors to provide 200 mA of output current without the cost, size, and electromagnetic interference (EMI) related to inductor-based converters. With an operating current of only 100 μA and operating efficiency greater than 90% at most loads, the LM2776 provides ideal performance for battery-powered systems requiring a high power negative power supply. The LM2776 has been placed in TI's 6-pin SOT-23 to maintain a small form factor.
LM2776DBVR Features
Input Voltage: 2.7 V to 5.5 V
200-mA Output Current
Inverts Input Supply Voltage
Low-Current PFM Mode Operation
2-MHz Switching Frequency
Greater than 90% Efficiency
Current Limit and Thermal Protection
No Inductors
LM2776DBVR Applications
Operational Amplifier Power Supplies
Interface Power Supplies
Data Converter Supplies
Audio Amplifier Power Supplies
Portable Electronic Devices
5G Communication
Electrification of automobile
Industrial 4.0
