具有可变切换频率的 60mA 充电泵电压反向器 - TPS60400

TPS60400 (正在供货)

具有可变切换频率的 60mA 充电泵电压反向器

 

备选器件推荐

  • TPS62120  -  The device has similar functionality with a wider input voltage range, higher output current, and output voltage regulation. See SLVA478.

描述

The TPS6040x family of devices generates an unregulated negative output voltage from an input voltage ranging from 1.6 V to 5.5 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. Additional board area and component count reduction is achieved by replacing the Schottky diode that is typically needed for start-up into load by integrated circuitry.

The TPS6040x 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 with 20-kHz, 50-kHz, and 250-kHz fixed-frequency operation are available. TPS60400 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.

特性

  • Inverts Input Supply Voltage
  • Up to 60-mA Output Current
  • Only Three Small 1-µF Ceramic Capacitors
    Needed
  • Input Voltage Range From 1.6 V to 5.5 V
  • PowerSave-Mode for Improved Efficiency
    at Low-Output Currents (TPS60400)
  • Device Quiescent Current Typical 65 µA
  • Integrated Active Schottky-Diode for
    Start-up Into Load
  • Small 5-Pin SOT-23 Package
  • Evaluation Module Available
    TPS60400EVM-178

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参数 与其它产品相比 降压/升压或反相充电泵 (无电感器)

 
Topology
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Operating Temperature Range (C)
Rating
Package Group
TPS60400 TPS60401 TPS60402 TPS60403
Inverting    Inverting    Inverting    Inverting   
1.6    1.6    1.6    1.6   
5.5    5.5    5.5    5.5   
-1.6    -1.6    -1.6    -1.6   
-5.25    -5.25    -5.25    -5.25   
0.06    0.06    0.06    0.06   
30    13    30    150   
450    25    80    400   
0.125    0.07    0.275    0.4   
N/A    N/A    N/A    N/A   
-40 to 85    -40 to 85    -40 to 85    -40 to 85   
Catalog    Catalog    Catalog    Catalog   
SOT-23    SOT-23    SOT-23    SOT-23   

其它合格版本 TPS60400

版本 器件型号 定义
汽车电子 TPS60400-Q1 Q100 适用于追求零缺陷的高可靠性汽车电子应用的器件