TPS5124
- High Efficiency – No Current Sense Resistor Required, RDS(on) Overcurrent Detection with Temperature Compensation
- Adjustable Output Voltage Down to 0.9 V
- Voltage-Mode PWM Control: Maximum 500-kHz Operation
- 180° Out-of-Phase Control
- Individual Standby and Soft-Start for Each Channel - Easy Power Sequencing
- Overvoltage and Undervoltage Protection
- Built-In Boot-Strap Diode
- Built-In 5-V Linear Regulator
- Accurate ± 1% 0.85-V Reference
- APPLICATIONS
- Consumer Game Systems
- DSP Applications
- Digital Set-Top Box
- VGA and Sound Cards
The TPS5124 is dual independent high efficiency synchronous step-down controller. It supports a low-voltage/high-current power supply applications that use either a 5-V or 12-V bus voltage. Since both controllers of the TPS5124 operate 180 degree out-of-phase, the input current ripple is minimized resulting in a smaller input capacitance and reduced power supply cost.
The current protection circuit detects the drain-to-source voltage drop across the high-side and low-side power MOSFET while it is conducting. Also, the current protection circuit has a temperature coefficient to compensate for the RDS(on) variation of the MOSFET. This resistor-less current protection and built-in boost diode simplify the system design and reduces the external parts count. Other features such as undervoltage lockout, overvoltage, undervoltage, and programmable short-circuit protection promote system reliability.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS5124 Dual Channel Synchronous Step-Down PWM Controller datasheet | 2003年 7月 10日 | |
| User guide | TPS5124 Buck Controller Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2022年 3月 3日 | |
| More literature | Исходные проекты ll | 2011年 5月 13日 |
設計與開發
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| 封裝 | 引腳 | 下載 |
|---|---|---|
| TSSOP (DBT) | 30 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點