40mA switched capacitor voltage converter
Product details
Parameters
Package | Pins | Size
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
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.
Technical documentation
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
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
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
Design tools & simulation
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
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOT-23 (DBV) | 6 | View options |
Ordering & quality
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- Ongoing reliability monitoring
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