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.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS650231 Power Management IC for Li-Ion Powered Systems datasheet (Rev. A) | PDF | HTML | 2011/09/08 |
| Application note | Optimizing Resistor Dividers at a Comparator (Rev. B) | PDF | HTML | 2021/04/30 | |
| Application note | LDO Noise Demystified (Rev. B) | PDF | HTML | 2020/08/18 | |
| Application note | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017/08/09 | |
| Application note | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | 2015/08/17 | ||
| Application note | TPS65023x Check List | 2015/07/20 | ||
| EVM User's guide | TPS65023B/TPS650231EVM User's Guide | 2010/10/11 | ||
| Application note | DaVinci Sequencing Using The TPS65023 | 2007/04/02 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS650231EVM-664 — TPS650231 평가 모듈
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 (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YFF) | 49 | Ultra Librarian |
| WQFN (RSB) | 40 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.