TPS51225 51225 TPS51225RUKR TPS51225RUKT (Step Down) Power IC

Description

Key Features:

• Input voltage range: 5.5 V to 24 V

• An integrated dual synchronous buck controller that generates regulated output rails (commonly 5 V and 3.3 V)

• Built‑in LDO regulators: 100 mA for 5 V and 3.3 V (for auxiliary loads)

• Control mode: Adaptive on‑time D‑CAP™ control for stable loop without external compensation

• Light‑load modes: supports auto‑skip or out‑of‑audio (OOA) modes depending on variant (for better efficiency and lower acoustic noise)

• Soft‑start: ~0.8 ms internal voltage servo soft‑start

• Current sensing: uses low‑side R_DS(on) sensing (with temperature compensation ~4500 ppm/°C)

• Protection features: Over‑voltage (OVP), under‑voltage (UVP), over-current (OCP), UVLO, thermal shutdown, etc.

• Output functions: built-in output discharge (pulls output down when disabled)

• Enable control: separate enable input for switchers (in some variants)

• Power‑good indicator (PG) output

• Packaging: 20‑pin QFN (3 × 3 mm)

• Operating temperature: –40 °C to +85 °C

• Typical quiescent current: ~900 µA (in active mode)

• Maximum duty cycle: ~90%

Please Note:

• No Returns, Exchanges, or Warranty available.

• Kindly verify the model number and ensure it matches your product before placing an order.

• We guarantee premium quality.

• All items are thoroughly inspected prior to shipping.