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).

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Part Features

  • 1-mVp-p Output Ripple
  • 1.4-MHz Switching Frequency
  • 5-Pin SOT-23 Package
  • Better Regulation Than a Charge Pump
  • 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
RoHS Compliant

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

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