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LM2665

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40mA switched capacitor voltage converter

Data sheet
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40mA switched capacitor voltage converter

LM2665

ACTIVE
Data sheet Order now

Product details

Parameters

Vin (Min) (V) 2.5 Vin (Max) (V) 5.8 Vout (Min) (V) 1.8 Vout (Max) (V) 11 Iout (Max) (A) 0.04 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 40 Switching frequency (Max) (kHz) 80 Iq (Typ) (mA) 0.65 Features Enable Operating temperature range (C) -40 to 85 Type Charge Pump Rating Catalog open-in-new Find other Charge pumps (inductorless)

Package | Pins | Size

SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 open-in-new Find other Charge pumps (inductorless)

Features

  • Input Voltage for Voltage Doubler: 2.5 V to 5.5 V
  • Voltage Divider Splits Voltage: 1.8 V to 11 V
  • Doubles or Splits Input Supply Voltage
  • 12-Ω Typical Output Impedance
  • 90% Typical Conversion Efficiency at 40 mA
  • 1-µA Typical Shutdown Current
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Description

The LM2665 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of 2.5 V to 5.5 V. Two low-cost capacitors and a diode (needed during start-up) are used in this circuit to provide up to 40 mA of output current. The LM2665 can also work as a voltage divider to split a voltage in the range of 1.8 V to 11 V in half.

The LM2665 operates at 160-kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 650 µA (operating efficiency greater than 90% with most loads) and
1-µA typical shutdown current, the LM2665 provides ideal performance for battery powered systems.

For all available packages, see the orderable addendum at the end of the data sheet. open-in-new Find other Charge pumps (inductorless)
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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet LM2665 Switched Capacitor Voltage Converter datasheet (Rev. H) Mar. 22, 2016
White paper The Forgotten Converter Jun. 15, 2015
Technical articles Painting a picture for powering high-performance FPGAs Sep. 05, 2013
Technical articles Analog Applications Spotlight: Mark Pieper Jun. 06, 2013
Technical articles How to choose an LDO or switching regulator May 08, 2013
Technical articles Engineer It Video Series: Testing Power Supplies Mar. 26, 2013
More literature Die D/S LM2665 MDA Switched Capacitor Voltage Converter Sep. 20, 2012

Design & development

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Hardware development

EVALUATION BOARD Download
149
Description
This evaluation module (EVM) is a complete evaluation system for the bq27z561 battery management system. The EVM includes bq27z561  and bq2980  circuit modules and a link to Windows® based PC software. The circuit modules includes bq27z561 and bq2980 integrated circuits (ICs), and all (...)
Features
  • Easy to use impedance track gas gauge
  • Accurate cell current, temperature and voltage monitoring
  • Over-voltage, under-voltage, over-current, over-temperature and under-temperature protection
  • 1-mOhm sense resistor
  • On-board EV2400
  • On-board dual programmable chargers
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Design tools & simulation

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PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
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CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 6 View options

Ordering & quality

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