TPS40322
- Dual-Output or Two-Phase Synchronous Buck
Controller - 180° Out-of-Phase Reduces Input Ripple
- Input Voltage Range: 3 V to 20 V
- Output Voltage Range: 0.6 V to 5.6 V
- Adjustable Frequency: 100 kHz to 1 MHz
- Bidirectional SYNC Pin With 0°/180° or 90°/270°
Phase Shift - Voltage Mode Control With Input Feedforward
- Accurate Current Sharing for Two-Phase
Operation - Individual Power Good Outputs
- Individual Enable and Programmable Soft Start,
With Pre-Bias Start-Up - ±0.5%, 600-mV Reference
- Output UV/OV Protection and Input Undervoltage
Lockout - Individual Overcurrent Limit Setting
- Hiccup Overcurrent Protection
- Accurate Inductor DCR or Resistive Current
Sensing - Remote Sense for Two-Phase Applications
- Internal N-Channel FET Drivers
- Integrated Bootstrap Switches
- Available in 5-mm × 5-mm 32-Pin VQFN Package
The TPS40322 device is a dual-output, synchronous buck controller. It can also be configured as a single-output, two-phase controller. The 180° out-of-phase operation reduces the input current ripple and extends the input capacitor lifetime. Bidirectional master and slave synchronization function provides evenly distributed phase shift for a four-output system that reduces input ripple further and attenuates the system noise.
The wide input range can support 3.3-V, 5-V, and 12-V buses. The accurate reference voltage satisfies the precision voltage needed by ASICs and potentially reduces the output capacitance requirement. Separate PGOOD signals provide flexibility for system monitoring and sequencing. The two channels are independently controlled and each soft-start time is programmable. Voltage mode control is implemented to reduce noise sensitivity and also ensures low duty ratio conversion.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | TPS40322 Dual Output or Two-Phase Synchronous Buck Controller datasheet (Rev. E) | PDF | HTML | 2016/01/07 |
Application note | Multiphase Buck Design from Start to Finish, Part 1 (Rev. B) | 2021/04/07 | ||
Application note | Implementing Output Voltage Offset in the TPS40322 | PDF | HTML | 2020/11/23 | |
Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
Application note | SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC | 2016/02/22 | ||
User guide | Using the TPS40322EVM-074 | 2012/04/05 | ||
EVM User's guide | Using the TPS40322EVM-679 | 2011/05/04 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS40322EVM-074 — TPS40322 듀얼 출력 또는 2상 동기 벅 컨트롤러 평가 모듈
TPS40322EVM-679 — TPS40322 듀얼 출력 또는 2상 동기 벅 컨트롤러 평가 모듈
PMP8962 — NexFET 전원 블록 II를 사용한 12V 입력, 소형 듀얼 5V/5.5A 로드 지점 레퍼런스 디자인
PMP20516 — 5V 45A 이중 위상 동기 벅 레퍼런스 설계
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VQFN (RHB) | 32 | 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