TPS65321-Q1
차량용 3.6V~36V, 3.2A 벅 컨버터, 넓은 Vin 280mA LDO 레귤레이터 포함
비교 대상 장치보다 업그레이드된 기능을 지원하는 즉각적 대체품
TPS65321-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified with the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- One High-VIN Step-Down DC-DC Converter
- Input Range of 3.6 V to 36 V
- 250-mΩ High-Side MOSFET
- Maximum Load Current 3.2 A, Output Adjustable 1.1 V to 20 V
- Adjustable Switching Frequency 100 kHz to 2.5 MHz
- Synchronizes to External Clock
- High Efficiency at Light Loads With Pulse-Skipping Eco-mode™ Control Scheme
- Maximum 140-µA Operating Quiescent Current
- Reset Output-Pin (Active Low, Open-Drain)
- One High-VIN Low-Dropout (LDO) Voltage Regulator
- Input Range of 3 V to 36 V
- 280-mA Current Capability With Typical 35-µA Quiescent Current in No-Load Condition
- Low-Dropout Voltage of 300 mV at
IO = 200 mA (Typical)
- Overcurrent Protection for Both Regulators
- Overtemperature Protection
- 14-Pin HTSSOP Package With PowerPAD™ Integrated Circuit Package
The TPS65321-Q1 device is a combination of a high-VIN DC-DC step-down converter, referred to as the buck regulator, with an adjustable switch-mode frequency from 100-kHz to 2.5-MHz, and a high-VIN 280-mA low-dropout (LDO) regulator. The input range is 3.6 V to 36 V for the buck regulator, and 3 V to
36 V for the LDO regulator. The buck regulator has an integrated high-side MOSFET with an active-low, open-drain power-good output-pin (nRST). The LDO regulator features a low-input supply current of 45-µA typical in no-load, also has an integrated MOSFET. Low-voltage tracking feature enables TPS65321-Q1 to track the input supply during cold-crank conditions.
The buck regulator provides a flexible design to fit system needs. The external loop compensation circuit allows for optimization of the converter response for the appropriate operating conditions. A low-ripple pulse-skip mode reduces the no-load input-supply current to maximum 140 µA.
The device has built-in protection features such as soft start, current-limit, thermal sensing and shutdown due to excessive power dissipation. Furthermore, the device has an internal undervoltage-lockout (UVLO) function that turns off the device when the supply voltage is too low.
기술 문서
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | TPS65321-Q1 36-V Step-Down Converter With Eco-mode™ and LDO Regulator datasheet (Rev. B) | PDF | HTML | 2017/06/22 |
Application note | Low Quiescent Current With Asynchronous Buck-Converters at High Temperatures | 2016/07/20 | ||
Technical article | How a Wide VIN integrated buck and LDO can power your automotive system – part 2 | PDF | HTML | 2016/06/30 | |
Application note | Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter | 2015/12/08 | ||
Application note | TPS65321-Q1 Design Checklist | 2015/11/23 | ||
EVM User's guide | TPS65321EVM (HVL125A) User's Guide (Rev. A) | 2015/11/02 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS65321EVM — TPS65321-Q1 EcoMode™ 및 LDO 레귤레이터를 지원하는 36V 스텝다운 컨버터 평가 모듈
The Texas Instruments TPS65321EVM evaluation module (EVM) helps designers evaluate the operation and performance of the TPS65321 Switch Mode Power Supply – Multiple-output voltage regulator.
패키지 | 핀 | 다운로드 |
---|---|---|
HTSSOP (PWP) | 14 | 옵션 보기 |
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