TPS51120
- 3.3-V and 5-V 100-mA Bootstrapped Standby
Regulators with Independent Enables - Selectable D-CAP™ Mode Enables Fast Transient
Response Less than 100 ns - Selectable Low Ripple Current Mode
- Less than 1% Internal Reference Accuracy
- Selectable PWM-only/Auto-skip Modes
- Low-side RDS(on) Loss-less Current Sensing
- RSENSE Accurate Current Sense Option
- Internal Soft-Start and Integrated VOUT Discharge
Transistors - Integrated 2-V Reference
- Adaptive Gate Drivers with Integrated Boost Diode
- Powergood for Each Channel with Delay Timer
- Fault Disable Mode
- Supply Input Voltage Range: 4.5 V to 28 V
The TPS51120 is a highly sophisticated dual, synchronous step-down controller. It is a full featured controller designed to run directly off a three- or four-cell Li-ion battery and provide high-power and 5-V and/or 3.3-V standby regulation for all the downstream circuitry in a notebook computer system. High-current, 100-mA, 5-V or 3.3-V on-board linear regulators have glitch-free switch over function to SMPS and can be kept alive independently during standby state. The pseudo-constant frequency adaptive on-time control scheme supports full range of current mode operation including simplified loop compensation, ceramic output capacitors as well as seamless transition to reduced frequency operation at light-load condition. Optional D-CAP mode operation optimized for SP-CAP or POSCAP output capacitors allows further reduction of external compensation parts. Dynamic UVP supports VIN line sag without latch off by hitting 5-V UVP. No negative voltage appears at output voltage node during UVLO, UVP, and OCP, OTP or loss of VIN.
The TPS51120 32-pin QFN package is specified from –40°C to 85°C ambient temperature.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS51120 Dual, Synchronous Step-Down Controller With 100-mA Standby Regulators for Notebook System Power datasheet (Rev. C) | PDF | HTML | 2015/01/29 |
| User guide | TPS51120 Buck Controller Evaluation Module User's Guide (Rev. B) | PDF | HTML | 2022/03/04 |
설계 및 개발
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TPS51120EVM-001 — TPS51120 평가 모듈
The TPS51120EVM-001 evaluation module utilizes the TPS51120 in a high efficiency, dual synchronous buck converter providing 5 V at 6 A and 3.3 V at 6 A from 8 V to 25 V input. The user’s guide describes the TPS51120EVM-001 performance in D-CAP™ mode and RDS(on) current sensing.
The TPS51120 is a (...)
TPS51120 TINA-TI (Transient) Reference Design
| 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