Specifications
| Type | Description |
|---|---|
| Part Number | LM2776 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | 6-pin SOT-23 (DBV), body size 2.90 mm x 1.60 mm |
| Component Type | Power_IC |
| Input Voltage Range | 2.7-5.5 V; recommended operating conditions |
| Output Voltage Function | Inverts positive input voltage to corresponding negative voltage; VIN = 2.7-5.5 V |
| Output Voltage Range | -2.7 to -5.5 V; corresponding negative voltage from VIN = 2.7-5.5 V |
| Output Current | 0-200 mA; recommended operating conditions |
| Maximum Continuous Output Current | 250 mA; absolute maximum rating, VOUT continuous output current |
| Switching Frequency | 1.7 min, 2 typ, 2.3 max MHz; over operating free-air temperature range |
| Efficiency | >90%; most loads |
| Quiescent Supply Current | 100 typ, 200 max uA; EN = 1, no load, VIN = 3.6 V, CIN = COUT = 2.2 uF, C1 = 1 uF |
| Shutdown Supply Current | 0.1 typ, 1 max uA; EN = 0, VIN = 3.6 V, CIN = COUT = 2.2 uF, C1 = 1 uF |
| Enable Threshold Voltage, Normal Operation | 1.2 V |
| Enable Threshold Voltage, Shutdown Mode | 0.4 V |
| Output Resistance | 2.5 ohm typ; VIN = 3.6 V, CIN = COUT = 2.2 uF, C1 = 1 uF |
| Output Current Limit | 400 mA typ; also typical at VIN = 5.5 V when output is shorted to ground |
| Undervoltage Lockout Falling Threshold | 2.4 V; VIN falling |
| Undervoltage Lockout Rising Threshold | 2.6 V; VIN rising |
| Operating Junction Temperature | -40 to 125 °C; recommended operating conditions |
| Ambient Temperature | -40 to 85 °C; recommended operating conditions |
| Absolute Maximum Supply Voltage | 6 V; VIN to GND or GND to VOUT |
| Enable Pin Absolute Maximum Voltage | GND - 0.3 V to VIN + 0.3 V |
| Maximum Operating Junction Temperature | 125 °C; absolute maximum rating |
| Storage Temperature | -65 to 150 °C; absolute maximum rating |
| ESD Rating HBM | ±1000 V; human-body model per ANSI/ESDA/JEDEC JS-001 |
| ESD Rating CDM | ±250 V; charged-device model per JEDEC JESD22-C101 |
| Junction-to-Ambient Thermal Resistance | 187 °C/W; DBV SOT package, 6 pins |
| Junction-to-Case Top Thermal Resistance | 158.2 °C/W; DBV SOT package, 6 pins |
| Junction-to-Board Thermal Resistance | 33.3 °C/W; DBV SOT package, 6 pins |
| Junction-to-Top Characterization Parameter | 37.8 °C/W; DBV SOT package, 6 pins |
| Junction-to-Board Characterization Parameter | 32.8 °C/W; DBV SOT package, 6 pins |
| External Capacitors | 3 capacitors; typical application uses CIN = 2.2 uF, COUT = 2.2 uF, charge-pump capacitor = 1 uF |
| PFM Pulse-Skipping Threshold | Output current less than 40 mA; light-load PFM operation |
| Thermal Shutdown Threshold | 150 °C typ; junction temperature rising |
| Thermal Shutdown Release Threshold | 130 °C typ; junction temperature falling |
| Shutdown Output Discharge Current | 1.85 mA approx; shutdown mode actively pulls VOUT to GND |
| Datasheet Status | request_only |
Product Overview
The LM2776 is a Texas Instruments switched capacitor voltage inverter for Power_Management designs that need a negative rail derived from a positive input. With VIN in the recommended 2.7-5.5 V range, the device produces the corresponding negative output voltage range of -2.7 to -5.5 V. Recommended output current is 0-200 mA, while the absolute maximum continuous output current rating is 250 mA.
Key Features
- 2.7-5.5 V recommended input voltage range
- Inverts positive input to corresponding negative voltage
- -2.7 to -5.5 V output voltage range
- 0-200 mA recommended output current range
- 2 MHz typical switched-capacitor operating frequency
- Greater than 90% efficiency for most loads
- 100 uA typical quiescent supply current
- 0.1 uA typical shutdown supply current
- 2.5 ohm typical output resistance at VIN 3.6 V
- Thermal shutdown at 150 °C typical junction temperature
Typical Applications
- Negative voltage rail generation
- Positive-to-negative supply conversion
- 2.7-5.5 V input systems
- Up to 200 mA output loads
- Light-load PFM operation
- Compact SOT-23 power designs
- Shutdown-controlled negative supplies
Procurement Notes
When requesting a quote for LM2776, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What input voltage range does the LM2776 support?
The LM2776 recommended input voltage range is 2.7-5.5 V. Within that range, it inverts the positive input voltage to a corresponding negative output voltage.
How much output current can the LM2776 provide?
The recommended operating output current range is 0-200 mA. The datasheet also lists 250 mA as the absolute maximum continuous VOUT current rating.
What external capacitors are used in a typical LM2776 application?
The typical application uses three capacitors: CIN = 2.2 uF, COUT = 2.2 uF, and a 1 uF charge-pump capacitor.
What happens when the LM2776 is placed in shutdown mode?
With EN = 0, shutdown supply current is 0.1 uA typical and 1 uA maximum under the stated test conditions. In shutdown mode, the device also actively pulls VOUT to GND with about 1.85 mA discharge current.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 25, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.