TPS56121
- 4.5-V to 14-V Input Voltage Range
- Incorporates Power Block Technology
- Up to 15-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 TPS56121 device is a high-efficiency and high-current synchronous buck converter designed to operate from a supply of 4.5 V to 14 V. The device can produce an output voltage as low as 0.6 V at loads up to 15 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 TPS56121 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 and then enters a shutdown/restart cycle until the fault is removed.
관심 가지실만한 유사 제품
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS56121 4.5-V to 14-V Input High-Current Synchronous Buck SWIFT™ Converter datasheet (Rev. D) | PDF | HTML | 2016. 2. 9 | |
| 애플리케이션 노트 | Semiconductor and IC Package Thermal Metrics (Rev. D) | PDF | HTML | 2024. 3. 25 | ||
| 아날로그 디자인 학술지 | Control-Mode Quick Reference Guide (Rev. B) | PDF | HTML | 2023. 8. 29 | ||
| 아날로그 디자인 학술지 | 2단계 필터를 사용하여 전압 리플 감소 | PDF | HTML | Download English Version | 2023. 5. 3 | |
| 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 | An Efficient LDO-less Power Supply Solution for AFE76xx | 2017. 11. 13 | |||
| 애플리케이션 노트 | Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co | 2014. 7. 11 | |||
| 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.
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TPS56121/221 Unencrypted PSpice Average Model Package (Rev. A)
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PMP6776 is a low-cost non-isolated synchronous buck power supply. This design uses TPS56121 and TPS54620 Synchronous Buck Converters and TPS54425 and TPS54225 Step-Down Switchers to generate 7 outputs. Features include input voltage range 10.8V to 13.2V and outputs 1V at 6A, 1.5V at 4A, 1.8V at 6A, (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| LSON-CLIP (DQP) | 22 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.