TPS60402 60 mA チャージ・ポンプ電圧インバータ、50 kHz固定 動作 | TIJ.co.jp

TPS60402
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60 mA チャージ・ポンプ電圧インバータ、50 kHz固定 動作

60 mA チャージ・ポンプ電圧インバータ、50 kHz固定 動作 - TPS60402
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推奨代替製品

  • TPS62120  -  このデバイスは類似する機能を持ち、より広い入力電圧範囲、高い出力電流、電圧出力レギュレーションを備えています。SLVA478 を参照してください。

概要

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.

特長

  • 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

機能一覧

他の製品と比較 チャージ・ポンプ(インダクタレス) メール Excelへダウンロード
Part number オーダー・オプション 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) Features Operating temperature range (C) Type Rating Package Group
TPS60402 ご注文 1.6     5.5     -5.25     -1.6     0.06     1     30     80     0.275     Light Load Efficiency Mode
Synchronous Rectification    
-40 to 85     Charge Pump     Catalog     SOT-23 | 5    
TPS60400 ご注文 1.6     5.5     -5.25     -1.6     0.06     1     30     350     0.125     Light Load Efficiency Mode
Synchronous Rectification    
-40 to 85     Charge Pump     Catalog     SOT-23 | 5    
TPS60401 ご注文 1.6     5.5     -5.25     -1.6     0.06     1     13     25     0.07     Light Load Efficiency Mode
Synchronous Rectification    
-40 to 85     Charge Pump     Catalog     SOT-23 | 5    
TPS60403 ご注文 1.6     5.5     -5.25     -1.6     0.06     1     150     400     0.4     Light Load Efficiency Mode
Synchronous Rectification    
-40 to 85     Charge Pump     Catalog     SOT-23 | 5