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Product details

Parameters

Vin (Min) (V) 1.8 Vin (Max) (V) 3.6 Vout (Min) (V) 5 Vout (Max) (V) 5 Iout (Max) (A) 0.1 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 210 Switching frequency (Max) (kHz) 450 Iq (Typ) (mA) 0.055 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

HTSSOP (PWP) 20 42 mm² 6.5 x 6.4 open-in-new Find other Charge pumps (inductorless)

Features

  • Regulated 5 V ±4% Output Voltage
  • Up to 100-mA Output Current
  • 1.8-V to 3.6-V Input Voltage Range
  • 65-µA Quiescent Supply Current
  • 0.05-µA Shutdown Current, Battery Is Isolated
    From Load in Shutdown
  • Integrated Low-Battery or Power-Good Indicator
  • Low-Output Voltage Ripple Over Complete Output
    Current Range
  • Easy-to-Design With Low-EMI Power Supply
    Because No Inductors Are Required
  • Evaluation Module Available (TPS60140EVM-144)
  • Available in a 6.5-mm × 4.4-mm 20-Pin HTSSOP
    Package
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Description

The TPS6014x step-up, regulated charge pumps generate a 5-V ±4% output voltage from a 1.8-V to 3.6-V input voltage range. The devices are typically powered by two alkaline, NiCd, or NiMH battery cells and provide an output current of minimum 100 mA from a 2-V input. Only four external capacitors are needed to build a complete voltage tripler charge pump.

The devices regulate the output by using the pulse-skip topology. The controller is optimized for lowest output voltage ripple over the complete output current range. The output peak current and therefore the output voltage ripple are drastically reduced compared to a conventional pulse-skip topology by regulating the charge pump output resistance. At light loads the maximum output resistance is limited to assure a low quiescent current.

The TPS60140 includes a low-battery comparator that issues a warning if the battery voltage drops below a user-adjustable threshold voltage. The TPS60141 features a power-good output that goes active when the output voltage reaches 90% of its nominal value.

The logic shutdown function disables the converter, reduces the supply current to a maximum of 1 µA and disconnects the output from the input. Special current-control circuitry prevents excessive current from being drawn from the battery during start-up. This DC/DC converter requires no inductors, therefore, EMI is of little concern. The TPS6014x operates over a free-air temperature range of –40°C to 85°C. It is available in the small, thermally enhanced 20-pin HTSSOP package (PWP).

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Technical documentation

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Type Title Date
* Datasheet TPS6014x Low Power DC-DC Converter Regulated 5-V, 100-mA Charge Pump Voltage Tripler datasheet (Rev. A) Nov. 24, 2015
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Application notes PowerPAD™ Thermally Enhanced Package (Rev. H) Jul. 06, 2018
Application notes Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Technical articles Painting a picture for powering high-performance FPGAs Sep. 05, 2013
Technical articles Analog Applications Spotlight: Mark Pieper Jun. 06, 2013
Application notes Optimizing Resistor Dividers at a Comparator (Rev. A) Jun. 03, 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
Application notes Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
User guides TPS6014x Charge Pump Evaluation Module User's Guide Mar. 02, 2000

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS60140EVM-144 is an evaluation tool for the regulated voltage tripler charge pump TPS60140. The package includes a tested evalutation module (EVM), an EVM user's guide (SLVU023) that contains the schematic, bill of material, components placement, layout and the setup of the EVM. The TPS60140/1 (...)

Features
  • Input voltage: 1.8 V to 3.6 V (typical supply range of two NiCd, NiMH or Alkaline battery cells)
  • Output voltage: 5 V +/- 4 %
  • Maximum output current: 150 mA

With a few changes it can also be used to evaluate the TPS60141.

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 20 View options

Ordering & quality

Support & training

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Videos

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Posted: 08-Jan-2019
Duration: 18:59

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