特性
- 4A complete power supply - Integrates controller, gate driver, MOSFETs, and inductor
- 2.7V to 5.5V input voltage range
- Adjustable output voltage
- Default 2MHz current mode control operation
- Dedicated enable pin and power-good flag
- Internal 1ms soft start-up time
- Soft-stop output discharge
- UVLO, OCP, negative OCP, OVP, and OTP
- Compact RoHS compliant 3mmx3mmx1.7mm dual flat no-lead (DFN) package
描述
The RAA210040 power module is a compact, synchronous step-down, non-isolated complete power supply, capable of delivering up to 4A of continuous current. By operating from a single 2.7V to 5.5V input power rail and integrating the controller, gate driver, power inductor, and MOSFETs, the RAA210040 is optimized for space-constrained applications.
Based on a peak current mode control scheme, the RAA210040 provides fast transient response and excellent loop stability. The output voltage can be set as low as 0.6V, with setpoint accuracy better than 1.5% over line, load, and temperature. The operating frequency has a 2MHz default setting; however, it can also be set from 500kHz to 4MHz by an external resistor. The external synchronization is supported with an external clock signal up to 4MHz. The RAA210040 supports a 100% duty cycle operation to minimize the switching losses and allows less than 200mV dropout voltage. A dedicated enable pin and power-good flag allows for easy system power rails sequencing.
An array of protection features, including input Undervoltage Lockout (UVLO), Overcurrent Protection (OCP), output Overvoltage Protection (OVP), and Over-temperature Protection (OTP), ensures safe operations under abnormal operating conditions.
产品对比
| RAA210040 | RAA210030 | |
| Input Voltage (Max) (V) | 5.5 | 5.5 |
| Input Voltage (Min) (V) | 2.7 | 2.7 |
| Output Current (Max) [Rail 1] (A) | 4 | 3 |
| Output Voltage (Max) (V) | 5 | 5 |
| Output Voltage (Min) (V) | 0.6 | 0.6 |
| Peak Efficiency (%) | 95 | 95 |
| Qualification Level | Standard | Standard |
产品参数
| 属性 | 值 |
|---|---|
| Input Voltage (Max) (V) | 5.5 |
| Output Voltage (Min) (V) | 0.6 |
| Output Voltage (Max) (V) | 5 |
| Output Current (Max) [Rail 1] (A) | 4 |
| Current Sharing | No |
| SYNCH Capability | No |
| POR | No |
| Peak Efficiency (%) | 95 |
| Qualification Level | Standard |
| Temp. Range (°C) | -40 to +85°C |
封装选项
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| Module | 3.0 x 3.0 x 1.70 | 10 | 0.5 |
应用方框图
|
AMD FPGA RFSoC 电源树
适用于空间受限应用中 AMD FPGA 或 RFSoC 的高效电源树。
|
|
人工智能监控摄像机
具有 DRP-AI 功能的 AI 监控摄像机可通过 4K 成像和低功耗提高安全性。
|
其他应用
- Telecom, Industrial, optical, and medical equipment
- Point-of-load conversions
- MCU, MPU, DSP, and FPGA