TPS650231
- 1.7-A, 90% Efficient Step-Down Converter for
Processor Core (VDCDC1) - 1.2-A, Up to 95% Efficient Step-Down Converter
for System Voltage (VDCDC2) - 0.8-A, 92% Efficient Step-Down Converter for
Memory Voltage (VDCDC3) - 30-mA LDO and Switch for Real-Time Clock
(VRTC) - 2 × 200-mA General-Purpose LDO
- Dynamic Voltage Management for Processor Core
- Preselectable LDO Voltage Using Two Digital
Input Pins - Externally Adjustable Reset Delay Time
- Battery Backup Functionality
- Separate Enable Pins for Inductive Converters
- I2C™-Compatible Serial Interface
- 85-µA Quiescent Current
- Low-Ripple PFM Mode
- Thermal Shutdown Protection
- Available in 40-Pin, 5-mm × 5-mm VQFN (RSB) or
49-Ball, 3-mm × 3-mm DSBGA (YFF) Package
The TPS650231 device is an integrated power management IC for applications powered by one Li-Ion or Li-Polymer cell, and which requires multiple power rails. The TPS650231 provides three highly efficient step-down converters targeted at providing the core voltage, peripheral, I/O, and memory rails in a processor-based system. The core converter allows for on-the-fly voltage changes through serial interface, allowing the system to implement dynamic power savings.
All three step-down converters enter a low-power mode at light load for maximum efficiency across the widest possible range of load currents. The TPS650231 also integrates two general-purpose, 200-mA LDO voltage regulators, which are enabled with an external input pin. Each LDO operates with an input voltage range from 1.5 V to 6.5 V, thus allowing them to be supplied from one of the step-down converters or directly from the battery. The default output voltage of the LDOs can be digitally set to 4 different voltage combinations using the DEFLDO1 and DEFLDO2 pins. The serial interface can be used for dynamic voltage scaling, masking interrupts, or for disabling, enabling, and setting the LDO output voltages. The interface is compatible with the fast and standard mode I2C specifications, allowing transfers at up to 400 kHz. The TPS650231 is available in a 40-pin VQFN (RSB) package or in a 49-ball DSBGA (YFF) package, and operates over a free-air temperature of –40°C to +85°C.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS650231 Power Management IC for Li-Ion Powered Systems datasheet (Rev. A) | PDF | HTML | 2011年 9月 8日 |
| Application note | Optimizing Resistor Dividers at a Comparator (Rev. B) | PDF | HTML | 2021年 4月 30日 | |
| Application note | LDO Noise Demystified (Rev. B) | PDF | HTML | 2020年 8月 18日 | |
| Application note | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017年 8月 9日 | |
| Application note | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | 2015年 8月 17日 | ||
| Application note | TPS65023x Check List | 2015年 7月 20日 | ||
| EVM User's guide | TPS65023B/TPS650231EVM User's Guide | 2010年 10月 11日 | ||
| Application note | DaVinci Sequencing Using The TPS65023 | 2007年 4月 2日 |
設計與開發
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TPS650231EVM-664 — TPS650231 評估模組
The Texas Instruments TPS650231EVM-664 is an integrated power management integrated circuit (IC) for applications that are powered with one Li-ion or Li-polymer cell and require multiple power rails. The TPS650231 contains three highly efficient switching step-down converters, two LDOs, and (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YFF) | 49 | Ultra Librarian |
| WQFN (RSB) | 40 | Ultra Librarian |
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
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。