LM2611AMF/NOPB Part Information
Details for LM2611AMF/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
Part Description
The LM2611 is a current mode, PWM inverting switching regulator. Operating from a 2.7-V to 4-V supply, it is capable of producing a regulated negative output voltage of up to −(36 VIN(MAX)). The LM2611 utilizes an input and output inductor, which enables low voltage ripple and RMS current on both the input and the output. With a switching frequency of 1.4 MHz, the inductors and output capacitor can be physically small and low cost. High efficiency is achieved through the use of a low RDS(ON) FET. The LM2611 features a shutdown pin, which can be activated when the part is not needed to lower the Iq and save battery life. A negative feedback (NFB) pin provides a simple method of setting the output voltage, using just two resistors. Cycle-by-cycle current limiting and internal compensation further simplify the use of the LM2611. The LM2611 is available as a small 5-pin, SOT-23 package and comes in two grades. Grade A has a 1.2-A current limit and 0.5-Ω RDS(ON), and Grade B has a 0.9-A current limit and 0.7-Ω RDS(ON).
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- 1-mVp-p Output Ripple
- 1.4-MHz Switching Frequency
- 5-Pin SOT-23 Package
- Better Regulation Than a Charge Pump
- Low RDS(ON) DMOS FET
- Low Shutdown Current: <1 u00b5A
- Uses Tiny Capacitors and Inductors
- Wide Input Range: 2.7 V to 14 V
- u22125 V at 300 mA From 5-V Input
Part Specifications
| Topology | Inverting |
| Input Voltage Min | 2.7V |
| Input Voltage Max | 14V |
| No. of Outputs | 1Outputs |
| DC / DC Converter IC Case | SOT-23 |
| No. of Pins | 5Pins |
| Output Current | 1.2A |
| Output Voltage Min | -1.23V |
| Output Voltage Max | - |
| Switching Frequency | 1.4MHz |
| Operating Temperature Max | 125°C |
| Product Range | - |
| Automotive Qualification Standard | - |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (27-Jun-2018) |
| Adjustable Output Voltage Max | -22V |
| Adjustable Output Voltage Min | -1.23V |
| Base Number | 2611 |
| Frequency | 1.8MHz |
| IC Generic Number | 2611 |
| Logic Function Number | 2611 |
| On Resistance Rds(on) | 0.5ohm |
| Operating Frequency | 1.4MHz |
| Operating Temperature Min | -40°C |
| Operating Temperature Range | -40°C to +125°C |
| Output Current Max | 1A |
| Output Voltage | -5V |
| Power Supply IC Type | Voltage converter |
| Primary Input Voltage | 5V |
| Supply Voltage Max | 14V |
| Supply Voltage Min | 2.7V |
| Switch Output Current Isw Max | 1.2A |
| Voltage Regulator Type | Fixed |
Alternative Part Descriptions
- Cuk switching regulator,LM2611AMF | RS Components
- IC, PWM INVERTING, 1.4MHZ, SOT23-5; Topology:Inverting; Input Voltage Min:2.7V; Input Voltage Max:14V; No. of Outputs:1Outputs; DC / DC Converter IC Case:SOT-23; No. of Pins:5Pins; Output Current:1.2A; Output Voltage Min:-1.23V; RoHS Compliant: Yes | Newark Electronics
- 1.4MHz Cuk Converter | Texas Instruments
- Switching controller IC [Texas Instruments] LM2611AMF/NOPB Switching controller IC | Distrelec