TPS61322 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.
TPS61322 Key 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
TPS61322 Applications
- 1-cell to 3-cell Alkaline or NiMH battery-powered applications