Renesas Electronics RAA21140x Step-Down Regulators
Renesas Electronics RAA21140x Step-Down Regulators feature a wide input voltage range of 7V to 40V and up to 300mA output current. These step-down regulators offer VIN Undervoltage Lockout (UVLO), VOUT Overvoltage Protection (OVP), Overcurrent (OC), and Over-Temperature Protections (OTP). The RAA211403 regulator features a 3.3V fixed output voltage. The RAA211405 regulator features a 5V fixed output voltage. These step-down regulators are available in a TSOT23-5 package. Typical applications include general-purpose or LDO replacement, industrial power supplies, E-bikes, power tools, home/industrial automation, embedded systems, and I/O supplies.
Features
- 7V to 40V input supply range
- Up to 300mA output current
- IQ = 4µA at 40V, at no load conditions, switching conditions
- IQ = 2.5µA at 40V at no load and no switching conditions
- Fixed output voltage VOUT:
- 3.3V (RAA211403)
- 5V ( RAA211405)
- 75ns minimum on-time
- Variable frequency operation and frequency programmed by the external inductor (4.7µH to 15µH)
- Pre-bias, monotonic, and smooth start-up
- Protections:
- Input Overcurrent (OC) limit
- Under Voltage Lock Out (UVLO)
- Over-Temperature Protection (OTP)
- Output Overvoltage Protection (OVP)
- Accurate EN threshold
- TSOT23-5 (2.9mm × 1.63mm) package
Applications
- General-purpose or LDO replacement
- Industrial power supplies
- Embedded systems and I/O supplies
- E-bikes and power tools
- Home/industrial automation
Videos
Typical Application Circuit Diagram
Block Diagram
Additional Resources
Publicado: 2024-02-13
| Actualizado: 2024-11-15