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 TPS61322 is a synchronous boost converter with only 6.5-µA quiescent current. The TPS61322 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 TPS61322 also allows the use of small external inductor and capacitors. Higher than 90% efficiency is achieved at 10-mA load from 1.5-V input to 2.2-V output conversion.

The TPS61322 can also support high output current applications with an external schottky diode. The TPS613222A provides higher than 500-mA output current capability at 3-V input voltage to 5-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. Thus, it only needs two external components to get the desired output voltage. The TPS61322 also implements thermal shutdown protection function.

The TPS61322 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 × 1.3-mm 3-pin SOT package and 2.9-mm × 1.6-mm 5-pin SOT package
  • Create a custom design using the TPS61322 with the WEBENCH® Power Designer

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WEBENCH® Designer TPS61322

  Min   Max Range
Vin  V .9 to 2V
Product Option
Vout  V 2.2 to 2.2V
Iout  A ≤ .2A
Ambient Temp  °C -40 to 125°C

Parametrics

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Part number Order 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 Order now 0.85     5.5     2.2     2.2     0.75     1     500     2000     0.006     Light Load Efficiency
Synchronous Rectification    
90     -40 to 85     Converter     Catalog     SOT-23 | 3    
TPS613221A Order now 0.85     5.5     3.3     3.3     0.9     1     500     2000     0.006     Light Load Efficiency
Synchronous Rectification    
90     -40 to 85     Converter     Catalog     SOT-23 | 5    
TPS613222A Order now 0.85     5.5     5     5     1.8     1     500     2000     0.006     Light Load Efficiency
Synchronous Rectification    
90     -40 to 85     Converter     Catalog     SOT-23 | 5    
TPS613223A Order now 0.85     5.5     2     2     0.63     1     500     2000     0.006     Light Load Efficiency
Synchronous Rectification    
90     -40 to 85     Converter     Catalog     SOT-23 | 5    
TPS613226A Order now 0.85     5.5     3.6     3.6     0.9     1     500     2000     0.006     Light Load Efficiency
Synchronous Rectification    
90     -40 to 85     Converter     Catalog     SOT-23 | 5    
TLV61220 Order now 0.7     5.5     1.8     5.5     0.4     1     500     2000