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

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
- Texas Instruments LM2611AMF/NOPB PWM Akım Modu Kontrolcü Entegresi, 1400 kHz, 5-Pinli SOT-23 | RS Components TR
- Cuk switching regulator,LM2611AMF | RS Components IT