TPS60403-Q1 Automotive Unregulated 60mA Charge Pump Voltage Inverter with 250kHz Fixed Frequency | TI.com

TPS60403-Q1
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Automotive Unregulated 60mA Charge Pump Voltage Inverter with 250kHz Fixed Frequency

 

Description

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.

Features

  • 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

Parametrics

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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Operating temperature range (C) Type Rating Package Group
TPS60403-Q1 Order now 1.8     5.25     -1.8     -5.25     0.06     1     250     250     0.425     -40 to 125     Charge Pump     Automotive     SOT-23 | 5    
TPS60400-Q1 Order now 1.8     5.25     -1.8     -5.25     0.06     1     50     250     0.125     -40 to 125     Charge Pump     Automotive     SOT-23 | 5    
TPS60401-Q1 Order now 1.8     5.25     -1.8     -5.25     0.06     1     20     20     0.065     -40 to 125     Charge Pump     Automotive     SOT-23 | 5    
TPS60402-Q1 Samples not available 1.8     5.25     -1.8     -5.25     0.06     1     50     50     0.12     -40 to 125     Charge Pump     Automotive     SOT-23 | 5