TPS62231-Q1
TPS62231-Q1 is 3-MHz Ultra-Small Step-Down Converter manufactured by Texas Instruments.
Features
- 1 Qualified for Automotive Applications
- Up to 3.8-MHz Switch Frequency
- Up to 94% Efficiency
- Output Peak Current up to 500 m A
- Excellent AC and Transient Load Regulation
- High PSRR (up to 90 d B)
- Small External Output-Filter ponents 1 μH and 4.7 μF
- VIN range from 2.05 V to 6 V
- Optimized Power Save Mode For Low Output-
Ripple Voltage
- Forced PWM Mode Operation
- Typical 22-μA Quiescent Current
- 100% Duty Cycle for Lowest Dropout
- Small 1 × 1.5 × 0.6-mm3 SON Package
- 12-mm2 Minimum Solution Size
- Supports 0.6-mm Maximum Solution Height
- Soft Start With 100-μs (Typical) Start-Up Time
2 Applications
- Advanced Driver-Assistance System (ADAS)
- Front Camera, Rear View Camera
- Surround View
- Blind-Spot Monitoring
- Automotive Telematics, e Call, and Tolling
- Space-Optimized Automotive and Industrial Power
Systems
3 Description
The TPS6223x-Q1 device family is a high-frequency, synchronous step-down DC-DC converter ideal for space-optimized automotive and industrial applications. The device supports up to 500-m A output current and allows the use of tiny and low-cost chip inductors and capacitors.
With a wide input-voltage range of 2.05 V to 6 V, the device can be powered by a preregulated voltage rail or Li-Ion batteries with extended voltage range. Two different fixed-output voltage versions are available at 1.5 V and 1.8 V.
The TPS6223x-Q1 series features switch frequency up to 3.8 MHz. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range.
Because of its excellent PSRR and AC load regulation performance, the device is also suitable to replace linear regulators to obtain better power conversion efficiency.
The Power Save Mode in TPS6223x-Q1 reduces the quiescent current consumption down to 22 μA during light load operation. It is optimized to achieve very low output voltage ripple even with small...
