6-uA Quiescent Current, 1.8-A Switch Current Boost Converter - TPS61322

TPS61322 (ACTIVE)

6-uA Quiescent Current, 1.8-A Switch Current Boost Converter

 

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Prototype samples are available (XTPS61322DBZR and XTPS61322DBZT). Request now

Description

The TPS61322x is a synchronous boost converter with only 6.5-µA quiescent current. TPS61322x provides a power-supply solution for products powered by alkaline battery, NiMH rechargeable battery, or one-cell Li-Ion battery. The minimum current limit is 0.45 A for TPS61322, 0.6 A for TPS613221 and 1.2 A for TPS613222. The boost converter is based on a hysteretic control topology using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. Higher than 85% efficiency can be achieved at 10mA load from 1.2-V input to 2.2-V output.

TPS61322x can also support non-synchronous operation for high output load applications. The TPS613222 provides higher than 500 mA output current capability at 3.0 V input voltage to 5.0 V output voltage conversion with an external Schottky diode in parallel with the internal rectifier FET.

The output voltage is set internally to a fixed output voltage from 1.8 V to 5.5 V in increments of 0.1 V. TPS61322x is packaged in a 2.9-mm × 1.3-mm 3-pin SOT package.

Features

  • Operating Input Voltage Range: 0.9 V to 5.5 V
  • Output Voltage Range: 1.8 V to 5.5 V
  • 6.5-µA Quiescent Current into VOUT Pin
  • ±3% Output Voltage Accuracy Over Temperature
  • Minimum Switch Peak Current Limit:
    • 0.45 A for TPS61322
    • 0.6 A for TPS613221
    • 1.2 A for TPS613222
  • Higher Than 85% efficiency at 10 mA Load from 1.2-V to 2.2-V Conversion
  • Thermal Shutdown Protection
  • 2.9-mm x 1.3-mm 3-pin SOT Package

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Parametrics Compare all products in Boost Converter (Integrated Switch)

 
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)
Rating
Package Group
TPS61322 TLV61220 TLV61224 TLV61225 TPS61097A-33 TPS61220 TPS61221 TPS61222
0.85    0.7    0.7    0.7    0.9    0.7    0.7    0.7   
5.5    5.5    3    3.3    5.5    5.5    5.5    5.5   
2.2    1.8    3    3.3    3.3    1.8    3.3    5   
2.2    5.5    3    3.3    3.3    5.5    3.3    5   
0.75    0.4    0.4    0.4    0.4    0.4    0.4    0.4   
1    1    1    1    1    1    1    1   
500    500    500    500      500    500    500   
2000    2000    2000    2000    2000    2000    2000    2000   
0.006    0.005    0.005    0.005    0.007    0.005    0.005    0.005   
Light Load Efficiency
Synchronous Rectification   
Synchronous Rectification    Synchronous Rectification    Synchronous Rectification    Enable    Synchronous Rectification    Synchronous Rectification    Synchronous Rectification   
90    90    90    90    100    90    90    90   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
SOT-23    SOT-23    SC70    SC70    SOT-23    SC70    SC70    SC70   

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WEBENCH® Designer TPS61322

  Min   Max Range
Vin  V 0.9 to 2.0V
Vout  V 2.2 to 2.2V
Iout  A ≤ 0.2A
Ambient Temp  °C -40 to 85°C


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