TPS60403-Q1

ACTIVE

Automotive Unregulated 60mA Charge Pump Voltage Inverter with 250kHz Fixed Frequency

Product details

Rating Automotive Operating temperature range (°C) -40 to 125 Type Charge pump Iout (max) (A) 0.06 Vin (min) (V) 1.8 Vin (max) (V) 5.25 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 250 Features Adjustable current limit, Unregulated Vout (min) (V) -1.8 Vout (max) (V) -5.25 Iq (typ) (µA) 425
Rating Automotive Operating temperature range (°C) -40 to 125 Type Charge pump Iout (max) (A) 0.06 Vin (min) (V) 1.8 Vin (max) (V) 5.25 Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 250 Features Adjustable current limit, Unregulated Vout (min) (V) -1.8 Vout (max) (V) -5.25 Iq (typ) (µA) 425
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • Inverts Input Supply Voltage
  • Up to 60-mA Output Current
  • Only Three Small 1-µF Ceramic Capacitors Needed
  • Input Voltage Range From 1.8 V to 5.25 V
  • PowerSave-Mode for Improved Efficiency at Low Output Currents (TPS60400-Q1)
  • Device Quiescent Current Typical: 100 µA
  • Integrated Active Schottky-Diode for Start-Up Into Load
  • Small 5-Pin SOT23 Package
  • Evaluation Module Available: TPS60400EVM-178
  • Qualified for Automotive Applications
  • AEC-Q100 Test Guidance With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • Inverts Input Supply Voltage
  • Up to 60-mA Output Current
  • Only Three Small 1-µF Ceramic Capacitors Needed
  • Input Voltage Range From 1.8 V to 5.25 V
  • PowerSave-Mode for Improved Efficiency at Low Output Currents (TPS60400-Q1)
  • Device Quiescent Current Typical: 100 µA
  • Integrated Active Schottky-Diode for Start-Up Into Load
  • Small 5-Pin SOT23 Package
  • Evaluation Module Available: TPS60400EVM-178

The TPS6040x-Q1 family of devices generate an unregulated negative output voltage from an input voltage ranging from 1.8 V to 5.25 V. The devices are typically supplied by a preregulated supply rail of 5 V or 3.3 V. Due to its wide-input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-Ion cell, can also power them.

Only three external 1-µF capacitors are required to build a complete DC-DC charge pump inverter. Assembled in a 5-pin SOT-23 package, the complete converter can be built on a 50-mm2 board area. Replacing the Schottky diode typically needed for start-up into load with integrated circuitry can achieve additional board area and component count reduction.

The TPS6040x-Q1 can deliver a maximum output current of 60 mA, with a typical conversion efficiency of greater than 90% over a wide output current range. Three device options TPS60401/2/3-Q1 with 20-kHz, 50-kHz, and 250-kHz fixed frequency operation are available. TPS60400-Q1 device comes with a variable switching frequency to reduce operating current in applications with a wide load range and enables the design with low-value capacitors.

The TPS6040x-Q1 family of devices generate an unregulated negative output voltage from an input voltage ranging from 1.8 V to 5.25 V. The devices are typically supplied by a preregulated supply rail of 5 V or 3.3 V. Due to its wide-input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-Ion cell, can also power them.

Only three external 1-µF capacitors are required to build a complete DC-DC charge pump inverter. Assembled in a 5-pin SOT-23 package, the complete converter can be built on a 50-mm2 board area. Replacing the Schottky diode typically needed for start-up into load with integrated circuitry can achieve additional board area and component count reduction.

The TPS6040x-Q1 can deliver a maximum output current of 60 mA, with a typical conversion efficiency of greater than 90% over a wide output current range. Three device options TPS60401/2/3-Q1 with 20-kHz, 50-kHz, and 250-kHz fixed frequency operation are available. TPS60400-Q1 device comes with a variable switching frequency to reduce operating current in applications with a wide load range and enables the design with low-value capacitors.

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Technical documentation

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* Data sheet TPS6040x-Q1 Unregulated 60-mA Charge Pump Voltage Inverter datasheet (Rev. B) PDF | HTML 17 Oct 2016
Functional safety information TPS6040x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 16 Feb 2021
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 11 Dec 2018
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 15 Jun 2017
Analog Design Journal Design considerations for a resistive feedback divider in a DC/DC converter 26 Apr 2012

Design & development

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Evaluation board

TPS60400EVM-178 — evaluation module for charge pump inverter (bare PCB)

Need for use: The EVM does not contain any components. The pcb therefore first has to be populated with the appropriate components. A description of different applications that can be tested using the EVM can be found in the TPS60400EVM users guide. Samples of the TPS6040x family can be (...)

User guide: PDF
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Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 5 Ultra Librarian

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