TPS61220 具有 5.5μA 静态电流的低输入电压、0.7V 升压转换器 | 德州仪器 TI.com.cn

TPS61220 (正在供货)

具有 5.5μA 静态电流的低输入电压、0.7V 升压转换器

 

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  • TPS61098  -  For applications requiring ultra-Low Iq or smaller package

描述

The TPS6122x family devices provide a power-supply solution for products powered by either a single-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm × 2 mm to enable small circuit layout size.

特性

  • Up to 95% Efficiency at Typical Operating
    Conditions
  • 5.5 µA Quiescent Current
  • Startup Into Load at 0.7 V Input Voltage
  • Operating Input Voltage from 0.7 V to 5.5 V
  • Pass-Through Function during Shutdown
  • Minimum Switching Current 200 mA
  • Protections:
    • Output Overvoltage
    • Overtemperature
    • Input Undervoltage Lockout
  • Adjustable Output Voltage from 1.8 V to 6 V
  • Fixed Output Voltage Versions
  • Small 6-pin SC-70 Package

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参数 与其它产品相比 升压转换器(集成开关)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switch Current Limit (Typ) (A)
Regulated outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Duty cycle (Max) (%)
Operating temperature range (C)
Type
Rating
Package Group
TPS61220 TLV61220 TLV61224 TLV61225 TPS61097A-33 TPS61098 TPS610981 TPS610982 TPS610985 TPS610986 TPS610987 TPS61099 TPS61221 TPS61222 TPS61291 TPS61322
0.7     0.7     0.7     0.7     0.9     0.7     0.7     0.7     0.7     0.7     0.7     0.7     0.7     0.7     0.9     0.85    
5.5     5.5     3     3.3     5.5     4.5     4.5     4.5     4.5     4.5     4.5     5.5     5.5     5.5     5     5.5    
1.8     1.8     3     3.3     3.3     4.171     3.201     3.201     2.91     3.201     4.171     1.8     3.3     5     2.5     2.2    
5.5     5.5     3     3.3     3.3     4.429     3.399     3.399     3.09     3.399     4.429     5.5     3.3     5     3.3     2.2    
0.4     0.4     0.4     0.4     0.4     0.5     0.5     0.5     0.5     0.5     0.5     1     0.4     0.4     1     0.75    
1     1     1     1     1     2     2     2     2     2     2     1     1     1     1     1    
500     500     500     500     200     1000     1000     1000     1000     1000     1000     1000     500     500     2300     500    
2000     2000     2000     2000     2000     3000     3000     3000     3000     3000     3000     3000     2000     2000     2300     2000    
0.005     0.005     0.005     0.005