Home Power management DC/DC switching regulators Charge pumps (inductorless)

LM2665

ACTIVE
Order now

1.8-V to 5.5-VIN switched capacitor voltage doubler

Data sheet
Top
1.8-V to 5.5-VIN switched capacitor voltage doubler

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
 open-in-new Find other Charge pumps (inductorless)

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)
Download

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 7
Type Title Date
* Data sheet LM2665 Switched Capacitor Voltage Converter datasheet (Rev. H) Mar. 22, 2016
White paper The Forgotten Converter Jun. 15, 2015
Technical article Painting a picture for powering high-performance FPGAs Sep. 05, 2013
Technical article Analog Applications Spotlight: Mark Pieper Jun. 06, 2013
Technical article How to choose an LDO or switching regulator May 08, 2013
Technical article 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

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
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
View details

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
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
  • (...)
View details

CAD/CAE symbols

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

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Training series

View all TI training and videos

Videos