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LM2664

ACTIVE

1.8-V to 5.5-VIN switched capacitor voltage inverter

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Data sheet

LM2664

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 85 Type Charge pump Iout (max) (A) 0.04 Vin (min) (V) 1.8 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 40 Switching frequency (max) (kHz) 80 Features Enable, Unregulated Vout (min) (V) -5.5 Vout (max) (V) -1.8 Iq (typ) (µA) 220
Rating Catalog Operating temperature range (°C) -40 to 85 Type Charge pump Iout (max) (A) 0.04 Vin (min) (V) 1.8 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 40 Switching frequency (max) (kHz) 80 Features Enable, Unregulated Vout (min) (V) -5.5 Vout (max) (V) -1.8 Iq (typ) (µA) 220
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Inverts Input Supply Voltage
  • 6-Pin SOT-23 Package
  • 12-Ω Typical Output Impedance
  • 91% Typical Conversion Efficiency at 40 mA
  • 1-µA Typical Shutdown Current
  • Inverts Input Supply Voltage
  • 6-Pin SOT-23 Package
  • 12-Ω Typical Output Impedance
  • 91% Typical Conversion Efficiency at 40 mA
  • 1-µA Typical Shutdown Current

The LM2664 CMOS charge-pump voltage converter inverts a positive voltage in the range of 1.8 V to 5.5 V to the corresponding negative voltage of −1.8 V to −5.5 V. The device uses two low-cost capacitors to provide up to 40 mA of output current.

The LM2664 operates at 160-kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 220 µA (operating efficiency greater than 91% with most loads) and 1-µA typical shutdown current, the LM2664 provides ideal performance for battery-powered systems.

The LM2664 CMOS charge-pump voltage converter inverts a positive voltage in the range of 1.8 V to 5.5 V to the corresponding negative voltage of −1.8 V to −5.5 V. The device uses two low-cost capacitors to provide up to 40 mA of output current.

The LM2664 operates at 160-kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 220 µA (operating efficiency greater than 91% with most loads) and 1-µA typical shutdown current, the LM2664 provides ideal performance for battery-powered systems.
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Technical documentation

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* Data sheet LM2664 Switched Capacitor Voltage Converter datasheet (Rev. E) PDF | HTML 17 Dec 2014
EVM User's guide AN-1142 LM2661/3/4 Evaluation Board (Rev. C) 30 Apr 2013

Design & development

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

Evaluation board

LM2661-3-4EVAL — Switched Capacitor Voltage Converter

The LM2661, LM2663, and LM2664 are part of a family of CMOS charge-pump voltage converters (Table 2). Each uses two small capacitors to achieve voltage inversion or voltage doubling without the cost, size, and EMI of inductor based converters. Each device has a shutdown feature and the LM2661 and (...)

User guide: PDF
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Simulation model

LM2664 PSPICE Model

SNVMBY1.ZIP (47 KB) - PSpice Model
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Reference designs

PMP15038 — 50A, 0.05% Current Accuracy Power Reference Design for Battery Test Systems

This reference design introduces a large current, highly accurate and bi-directional power solution used in battery test systems (BTS). It includes a LM5170EVM-BIDIR and a signal control board. The LM5170EVM-BIDIR is an evaluation board  to showcase the high performance of the dual-channel (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP15043 — 6A, 0.05% Current Accuracy Power Solution for Battery Test Systems Reference Design

This reference design circuit introduces a highly accurate, bi-directional current power solution used in battery test systems (BTS). The maximum current capability is 6A with lower than 0.05% full scale accuracy. Controlling through a logic pin, the circuit can be used to charge or discharge a (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-01040 — Battery Tester Reference Design for High Current Applications

Li-Ion battery formation and electrical testing require accurate voltage and current control, usually to better than ±0.05% over the specified temperature range.  This reference design proposes a solution for high-current (up to 50 A) battery tester applications supporting input (bus) (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01041 — Battery tester reference design for multi-phase high-precision 0.5 to 100 A battery formation

This reference design provides a multi-phase solution for a wide range of current battery test applications. Leveraging the dual phase buck/boost controller LM5170's daisy chain configuration gives the design the ability to achieve 100A charging/discharging rates. Utilizing high accuracy constant (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01042 — Modular battery tester reference design for 50-A, 100-A, and 200-A applications

This reference design provides a modular battery test solution allowing users to have the flexibility to test batteries at different current levels with one design. This design leverages the TIDA-01041 reference design by providing two 100-A battery testers that can work independently or be (...)
Design guide: PDF
Schematic: PDF
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TIDA-010087 — 100-A Dual-phase digital control battery tester reference design

This reference design illustrates a method to precisely control the current and voltage of a bidirectional interleaved buck-converter power stage using a C2000™ microcontroller (MCU) and a precision ADC ADS131M08. This design achieves less than ±20-mA current regulation error, and (...)
Design guide: PDF
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TIDA-010077 — Obstacle, cliff detection and stuck prevention all-in-one reference design for robotic applications

Obstacle avoidance, cliff detection, stuck prevention and wall follow are all necessary features for robotic systems. This reference design uses optical time-of-flight (ToF) techniques to build small and cost-effective proximity sensor systems to achieve these features and solve the problem of (...)
Design guide: PDF
Schematic: PDF
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SOT-23 (DBV) 6 Ultra Librarian
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