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.

• 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

• Vin (Min) (V)
• 1.8
• Vin (Max) (V)
• 5.25
• Vout (Min) (V)
• -1.8
• Vout (Max) (V)
• -5.25
• Iout (Max) (A)
• 0.06
• Regulated outputs (#)
• 1
• Switching frequency (Min) (kHz)
• 250
• Switching frequency (Max) (kHz)
• 250
• Iq (Typ) (mA)
• 0.425
• Features
• Adjustable Current Limit
• Rating
• Automotive

TPS60403-Q1的完整型号有：TPS60403QDBVRQ1，以下是这些产品的关键参数及官网采购报价：

TPS60403QDBVRQ1，工作温度：-40 to 125，封装：SOT-23 (DBV)-5，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网TPS60403QDBVRQ1的批量USD价格：.385（1000+）

TPS60400EVM-178 — 用于电荷泵逆变器（裸 PCB）的评估模块

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 (...)

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PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

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