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TPS56221
- 4.5-V to 14-V Input Voltage Range
- Incorporates Power Block Technology
- Up to 25-A Output Current
- Fixed-Frequency Options of 300 kHz, 500 kHz,
and 1 MHz - High-Side and Low-Side MOSFET RDS(on) Sensing
- Programmable Soft-Start
- 600-mV Reference Voltage With 1% Accuracy
- Voltage Mode Control with Feed-Forward
- Supports Prebiased Output
- Thermal Shutdown
- 22-Pin 5-mm × 6-mm PQFN PowerPAD™ Package
- For SWIFT Power Products Documentation,
see http://www.ti.com/swift
The TPS56221 device is a high-efficiency and high-current synchronous buck converter designed to operate from a supply from 4.5 V to 14 V. The device can produce an output voltage as low as 0.6 V at loads up to 25 A. Integrated NexFET™ Power MOSFETs provide a small footprint and ease of use.
The device implements a voltage-mode control with voltage feed-forward compensation that responds instantly to input voltage change.
The TPS56221 is available in a thermally enhanced 22-pin PQFN (DQP) PowerPAD package.
The device offers design flexibility with a variety of user programmable functions, including soft-start, overcurrent protection (OCP) levels, and loop compensation. OCP levels are programmed by a single external resistor connected from the ILIM pin to the circuit ground. During the initial power-on sequence, the device enters a calibration cycle, measures the voltage at the ILIM pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition. It then enters a shutdown/restart cycle until the fault is removed.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | 4.5-V to 14-V Input High-Current Synchronous Buck SWIFT Converter, TPS56221 datasheet (Rev. D) | PDF | HTML | 2016. 2. 9 | |
| 애플리케이션 노트 | Semiconductor and IC Package Thermal Metrics (Rev. D) | PDF | HTML | 2024. 3. 25 | ||
| 애플리케이션 노트 | Calculating Efficiency (Rev. A) | 2020. 3. 6 | |||
| 선택 가이드 | SWIFT DC/DC Converters Selector Guide (Rev. G) | 2019. 2. 6 | |||
| 선택 가이드 | Power Management Guide 2018 (Rev. R) | 2018. 6. 25 | |||
| 애플리케이션 노트 | Analysis and Design of Input Filter for DC-DC Circuit | 2017. 11. 27 | |||
| 애플리케이션 노트 | Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co | 2014. 7. 11 | |||
| 애플리케이션 노트 | PowerStack™ Packaging Technology Overview | 2011. 7. 18 | |||
| 애플리케이션 노트 | Understanding Thermal Dissipation and Design of a Heatsink | 2011. 5. 4 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS56221EVM-579 — TPS56221 고전류(25A) 동기 스텝다운 SWIFT™ 컨버터용 평가 모듈
TPS56121/221 Unencrypted PSpice Average Model Package (Rev. A)
TPS56221 Unencrypted PSpice Transient Model Package (Rev. A)
SLUC263 — Type III Compensation Calculation Tool
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| LSON-CLIP (DQP) | 22 | Ultra Librarian |
주문 및 품질
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