LM2621MM/NOPB Part Information

Details for LM2621MM/NOPB by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

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Part Description

The LM2621 is a high efficiency, step-up DC-DC switching regulator for battery-powered and low input voltage systems. It accepts an input voltage between 1.2 V and 14 V and converts it into a regulated output voltage. The output voltage can be adjusted between 1.24 V and 14 V. It has an internal 0.17-Ω N-Channel MOSFET power switch. Efficiencies up to 90% are achievable using the LM2621. The high switching frequency (adjustable up to 2 MHz) of the LM2621 allows for tiny surface mount inductors and capacitors. Because of the unique constant-duty-cycle gated oscillator topology very high efficiencies are realized over a wide load range. The supply current is reduced to 80 µA because of the BiCMOS process technology. In the shutdown mode, the supply current is less than 2.5 µA. The LM2621 is available in a VSSOP-8 package. This package uses half the board area of a standard 8-pin SOIC and has a height of just 1.09 mm.

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Part Features

  • 0.17-u03a9 Internal MOSFET
  • 1.09-mm Package Height
  • 1.2-V to 14-V Input Voltage
  • 1.24-V to 14-V Adjustable Output Voltage
  • 80-u00b5A Typical Operating Current
  • < 2.5-u00b5A Specified Supply Current In Shutdown
  • Small VSSOP8 Package (Half the Footprint of Standard 8-Pin SOIC Package)
  • Up to 1A Load Current
  • Up to 2-MHz Switching Frequency
  • Up to 90% Regulator Efficiency

Part Specifications

Topology Boost (Step Up)
Input Voltage Min 1.2V
Input Voltage Max 14V
No. of Outputs 1Outputs
DC / DC Converter IC Case VSSOP
No. of Pins 8Pins
Output Current 1A
Output Voltage Min 1.24V
Output Voltage Max 14V
Switching Frequency 2MHz
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

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  • STEP-UP DC/DC CONVERTER, 2MHZ, 8SOIC; Topology:Boost (Step Up); Input Voltage Min:1.2V; Input Voltage Max:14V; No. of Outputs:1Outputs; DC / DC Converter IC Case:VSSOP; No. of Pins:8Pins; Output Current:1A; Output Voltage Min:1.24V RoHS Compliant: Yes | Newark Electronics
  • 1.2V to 14V input voltage, 1A load current, step-up DC-DC | Texas Instruments
  • Switching Voltage Regulator [Texas Instruments] LM2621MM/NOPB Switching Voltage Regulator | Distrelec
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  • Step up dc-dc converter,LM2621MM 14V 1A | RS Components IT

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