概览
描述
The RAA211233 is an integrated 24V, 3A 1.4MHz synchronous buck regulator with constant on-time (COT) current mode control. It supports a wide input voltage range from 4.5V to 24V.
The RTKA211233DE0000BU evaluation board provides a quick and comprehensive platform for evaluating the performance features of the RAA211233 buck regulator.
The RTKA211233DE0000BU evaluation board operates from a supply voltage of 4.5V to 24VDC, delivering a continuous load of 3A and 3.3V output voltage.
特性
- 4.5V to 24V input supply range.
- Integrated high-side (85mΩ) and low-side (45mΩ) MOSFETs
- Iq = 400µA, no switching
- Minimum on-time 66ns typical, minimum off-time 250ns typical
- Reference voltage 0.6V with 2% tolerance for room temperature
- VOUT programmable by changing the FB voltage divider
- 1.4MHz nominal switching frequency
- Current mode COT control with internal compensation
- Internal 1.2ms soft-start
- Protections: LSOC Limit, VIN UVLO, OTP, UVP with Hiccup mode
应用
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