TPS61322 6-uA Quiescent Current, 1.8-A Switch Current Boost Converter | TI.com

TPS61322 (ACTIVE)

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

 

Description

The TPS61322xx is a synchronous boost converter with only 6.5-µA quiescent current. The TPS61322xx provides a power-supply solution for products powered by alkaline battery, NiMH rechargeable battery, or one-cell Li-ion battery. The boost converter is based on a hysteretic control topology using synchronous rectification to obtain maximum efficiency at minimal quiescent current. The TPS61322xx also allows the use of small external inductor and capacitors. Higher than 90% efficiency is achieved at 10mA load from 1.5-V input to 2.2-V output conversion.

The TPS61322xx can also support high output current applications with an external schottky diode. The TPS613222A 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 increment of 0.1 V. Thus it only needs two external components to get the desired output voltage. The TPS61322xx also implements thermal shutdown protection function.

The TPS61322xx is available in a 2.9-mm × 1.3-mm 3-pin SOT package or a 2.9-mm × 1.6-mm 5-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:
    • 0.42 A for TPS613223A
    • 0.5 A for TPS61322
    • 0.75 A for TPS613221A and TPS613226A
    • 1.10 A for TPS613222A
  • Higher than 90% Efficiency at 10 mA Load from 1.5-V to 2.2-V Conversion
  • Thermal Shutdown Protection
  • 2.9-mm x 1.3-mm 3-pin SOT Package and 2.9-mm x 1.6-mm 5-pin SOT Package

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Parametrics Compare all products in Boost converters (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)
Type
Rating
Package Group
TPS61322 TPS613221A TPS613222A TPS613223A TPS613226A TLV61220 TLV61224 TLV61225 TPS61097A-33 TPS61099 TPS61220 TPS61221 TPS61222
0.85     0.85     0.85     0.85     0.85     0.7     0.7     0.7     0.9     0.7     0.7     0.7     0.7    
5.5     5.5     5.5     5.5     5.5     5.5     3     3.3     5.5     5.5     5.5     5.5     5.5    
2.2     3.3     5     2     3.6     1.8     3     3.3     3.3     1.8     1.8     3.3     5    
2.2     3.3     5     2     3.6     5.5     3     3.3     3.3     5.5     5.5     3.3     5    
0.75     0.9     1.8     0.63     0.9     0.4     0.4     0.4     0.4     1     0.4     0.4     0.4    
1     1     1     1     1     1     1     1     1     1     1     1     1    
500     500     500     500     500     500     500     500     200     1000     500     500     500    
2000     2000     2000     2000     2000     2000     2000     2000     2000     3000     2000     2000     2000    
0.006     0.006     0.006     0.006     0.006     0.005     0.005     0.005     0.007     0.0008     0.005     0.005     0.005    
Light Load Efficiency
Synchronous Rectification    
Light Load Efficiency
Synchronous Rectification    
Light Load Efficiency
Synchronous Rectification    
Light Load Efficiency
Synchronous Rectification    
Light Load Efficiency
Synchronous Rectification    
Synchronous Rectification     Synchronous Rectification     Synchronous Rectification     Bypass Mode     Synchronous Rectification     Synchronous Rectification     Synchronous Rectification     Synchronous Rectification    
90     90     90