LM2776DBVR Datasheet
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 batterypowered 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
| Attribute | Attribute Value |
| Manufacturer | Texas Instruments |
| Product Category | DC Switching Regulators |
| Series | LM2776 |
| Type | Voltage Converter |
| Packaging | Alternate Packaging |
| Unit-Weight | 0.001270 oz |
| Mounting-Style | SMD/SMT |
| Operating-Temperature-Range | - 40 C to + 85 C |
| Package-Case | SOT-23-6 |
| Operating-Temperature | -40°C ~ 85°C (TA) |
| Mounting-Type | Surface Mount |
| Output-Type | Fixed |
| Function | Ratiometric |
| Supplier-Device-Package | SOT-23-6 |
| Number-of-Outputs | 1 Output |
| Topology | Charge Pump |
| Frequency-Switching | 2MHz |
| Current-Output | 200mA |
| Output-Configuration | Negative |
| Output Voltage | #NAME? |
| Voltage-Output-Max | - |
| Synchronous-Rectifier | No |
| Voltage-Input-Min | 2.7V |
| Voltage-Input-Max | 5.5V |
| Shutdown | Shutdown |
| Maximum Operating Temperature | + 85 C |
| Operating temperature range | - 40 C |
| Output-Voltage | - 2.7 V to - 5.5 V |
| Operating-Supply-Current | 100 uA |
| Input-Voltage | 2.7 V to 5.5 V |
| Input-Voltage-MAX | 5.5 V |
| Output-Current | 200 mA |
| Switching-Frequency | 2 MHz |
| Input-Voltage-MIN | 2.7 V |
| Software Development Kit | LM2776EVM |
| Supply-Voltage-Min | 2.7 V |
| Package-Case | SOT-23-6 |
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LM2776DBV Switching Voltage Regulator Switched Capacitor Inverter 6-SOT-23 -40 to 85 Images
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