Features
- 7V to 40V input supply range
- Up to 300mA output current
- IQ = 4μA at 40V, at no load conditions, switching
- IQ = 2.5μA at 40V at no load and no switching conditions
- Fixed 5V VOUT
- Minimum on-time of 75ns
- Variable frequency operation, frequency programmed by external inductor (4.7μH to 15μH)
- Pre-bias, monotonic, and smooth start-up
- Protections: Overcurrent (OC) Limit, input Undervoltage Lockout (UVLO), Over-Temperature Protection (OTP), output Overvoltage Protection (OVP)
- Accurate EN threshold
- Package: TSOT23-5 (2.9 mm × 1.63 mm)
Description
The RAA211405 is a tiny, easy-to-use, ultra-low quiescent current (IQ) buck regulators with wide input voltage range of 7V to 40V, up to 300mA output current with fixed 5V output.
The device offers comprehensive protections, including VIN UVLO, VOUT OVP, overcurrent, and over-temperature protections.
The device comes in a TSOT23-5 package.
Parameters
| Attributes | Value |
|---|---|
| Topology [Rail 1] | Buck |
| Outputs (#) | 1 |
| Input Voltage (Min) [Rail 1] (V) | 7 |
| Input Voltage (Max) [Rail 1] | 40 |
| Output Voltage (Min) [Rail 1] (V) | 5 |
| Output Voltage (Max) [Rail 1] (V) | 5 |
| Output Current (Max) [Rail 1] (A) | 0.3 |
| Switching Frequency Range (Typical) (kHz) | 380 - 380 |
| Control Type | Peak Current Mode |
| Peak Efficiency (%) | 70 |
| IQ [Rail 1] (µA) | 4 |
| SYNCH Capability | No |
| Qualification Level | Standard |
| Temp. Range (°C) | -40 to +125°C |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSOT | 2.9 x 1.6 x 0.85 | 5 | 1 |
Application Block Diagrams
 | Isolated Motor Drive Power Stage Isolated GaN-based three-phase inverter motor drive power stage for high-performance motor applications up to 3kW. |
Additional Applications
- General purpose or LDO replacement
- Industrial power supplies
- Embedded systems and I/O supplies
- E-Bikes, Power tools
- Home/Industrial Automation