Features
- 4.5V to 24V input supply range
- Up to 3A output current
- Integrated high-side (85mΩ) and low-side (45mΩ) MOSFETs
- 400μA quiescent current
- Minimum on-time of 60ns and minimum off-time of 275ns
- 0.765V reference voltage with 2% accuracy
- PFM mode under light load condition
- Current mode constant on-time (COT) control with internal compensation
- Internal 0.8ms soft start time
- Protection: low-side overcurrent (LSOC) limit, input undervoltage lockout (UVLO), over-temperature protection (OTP), output undervoltage protection (OUVP) with Hiccup mode
- Accurate EN threshold
- 6-lead TSOT23 package
Description
The RAA211230 is an integrated 24V, 3A synchronous buck regulator with current mode constant on-time (COT) control. The RAA211230 features comprehensive protection including input undervoltage lockout (UVLO), overcurrent protection (OCP), output undervoltage protection (OUVP), and over-temperature protection (OTP).
Parameters
| Attributes | Value |
|---|---|
| Topology [Rail 1] | Buck |
| Outputs (#) | 1 |
| Input Voltage (Min) [Rail 1] (V) | 4.5 |
| Input Voltage (Max) [Rail 1] (V) | 24 - 24 |
| Output Voltage (Min) [Rail 1] (V) | 0.765 |
| Output Voltage (Max) [Rail 1] (V) | 14 |
| Output Current (Max) [Rail 1] (A) | 3 |
| Switching Frequency Range (Typical) (kHz) | 500 - 500 |
| Control Type | COT |
| Peak Efficiency (%) | 96 |
| IQ [Rail 1] (µA) | 400 |
| SYNCH Capability | No |
| Qualification Level | Standard |
| Temp. Range (°C) | -55 to +125°C |
| Simulation Model Available | iSim |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSOT | 2.9 x 1.6 x 0.87 | 6 | 1 |
Application Block Diagrams
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 | Watercraft Emergency Broadcast System The watercraft emergency broadcast system features high-performance control, HMI, GNSS connection, system encryption, and adaptive solar charging. |
Additional Applications
- General purpose
- Industrial power supplies
- Embedded systems and I/O supplies