LM2776 Texas instruments

LM2776

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LM2776

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Описание

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 TIs 6-pin SOT-23 to maintain a small form factor.

Vin (min) (V)	2.7
Vin (max) (V)	5.5
Vout (min) (V)	-5.5
Vout (max) (V)	-2.7
Iout (max) (A)	0.2
Regulated outputs (#)	1
Switching frequency (min) (kHz)	1700
Switching frequency (max) (kHz)	2300
Iq (typ) (mA)	0.1
Features	Enable, Light Load Efficiency Mode, Output discharge, Synchronous Rectification, UVLO Fixed
Operating temperature range (°C)	-40 to 85
Rating	Catalog
Type	Charge pump, Converter