계산 툴
LM5118QUICK-CALC — LM5118/LM25118 Quick Start Component Calculator
Quick Start Component Calculator for LM5118/LM25118 devices
데이터 시트
LM5118
- Ultra-Wide Input Voltage Range From 3 V to 75 V
- Emulated Peak Current Mode Control
- Smooth Transition Between Step-Down and Step-Up Modes
- Switching Frequency Programmable to 500 KHz
- Oscillator Synchronization Capability
- Internal High Voltage Bias Regulator
- Integrated High and Low-Side Gate Drivers
- Programmable Soft-Start Time
- Ultra-Low Shutdown Current
- Enable Input Wide Bandwidth Error Amplifier
- 1.5% Feedback Reference Accuracy
- Thermal Shutdown
- Package: 20-Pin HTSSOP (Exposed Pad)
- Create a Custom Design Using the LM5118 With the WEBENCH® Power Designer
The LM5118 wide voltage range Buck-Boost switching regulator controller features all of the functions necessary to implement a high-performance, cost-efficient Buck-Boost regulator using a minimum of external components. The Buck-Boost topology maintains output voltage regulation when the input voltage is either less than or greater than the output voltage, making it especially suitable for automotive applications. The LM5118 operates as a buck regulator while the input voltage is sufficiently greater than the regulated output voltage and gradually transitions to the buck-boost mode as the input voltage approaches the output. This dual-mode approach maintains regulation over a wide range of input voltages with optimal conversion efficiency in the buck mode and a glitch-free output during mode transitions. This easy-to-use controller includes drivers for the high-side buck MOSFET and the low-side boost MOSFET. The regulators control method is based upon current mode control using an emulated current ramp. Emulated current mode control reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of the very small duty cycles necessary in high input voltage applications. Additional protection features include current limit, thermal shutdown and an enable input. The device is available in a power-enhanced, 20-pin HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.
기술 자료
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9개 모두 보기 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM5118 Wide Voltage Range Buck-Boost Controller datasheet (Rev. J) | PDF | HTML | 2017/06/30 |
| White paper | Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) | PDF | HTML | 2024/04/30 | |
| White paper | Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) | 2019/04/10 | ||
| Technical article | Learn how to keep your car battery steady and running longer | PDF | HTML | 2017/03/28 | |
| Analog Design Journal | Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics | 2016/07/21 | ||
| Application note | Maintaining Output Voltage Regulation During Automotive Cold-Crank with LM5118 | 2015/07/27 | ||
| EVM User's guide | AN-1819 LM5118 Evaluation Board (Rev. B) | 2014/01/17 | ||
| White paper | Wide VIN power management ICs simplify white paper (Rev. A) | 2013/09/19 | ||
| User guide | AN-2178 LM5118 Four Switch Conversion (Rev. E) | 2013/05/06 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
평가 보드
LM5118EVAL — LM5118 넓은 Vin 벅 부스트 컨트롤러용 평가 보드
The LM5118 evaluation board is designed to provide the design engineer with a fully functional, Emulated Current Mode Control, buck-boost power converter to evaluate the LM5118 controller IC. The evaluation board provides a 12V output with 3A of output current capability. The evaluation board's (...)
사용 설명서: PDF
평가 보드
PMLKBUCKBOOSTEVM — LM5118을 사용하는 TI-PMLK 벅-부스트 실험 보드
The BuckBoost Experiments Board is one board as part of the Texas Instruments Power Management Lab Kit (TI-PMLK) Series. The BuckBoost Experiments Board uses the LM5118 IC. The BuckBoost Experiments Board has an accompanying book that steps individuals through several experiments to (...)
사용 설명서: PDF
평가 보드
PMLKBUCKBOOSTEVMB — TI-PMLK 벅-부스트 실험 북과 LM5118을 사용하는 TI-PMLK 벅-부스트 실험 보드
The BuckBoost Experiments Board is one board as part of the Texas Instruments Power Management Lab Kit (TI-PMLK) Series. The BuckBoost Experiments Board uses the LM5118 IC. The box that is shipped will contain the TI-PMLKBUCKBOOSTEVM Hardware along with a bound version of the BuckBoost (...)
사용 설명서: PDF
레퍼런스 디자인
TIDA-01040 — 고전류 애플리케이션용 배터리 테스터 레퍼런스 설계
Li-Ion battery formation and electrical testing require accurate voltage and current control, usually to better than ±0.05% over the specified temperature range. This reference design proposes a solution for high-current (up to 50 A) battery tester applications supporting input (bus) (...)
레퍼런스 디자인
TIDA-01041 — 다중 위상 고정밀 0.5~100A 배터리 활성화를 위한 배터리 테스터 레퍼런스 설계
This reference design provides a multi-phase solution for a wide range of current battery test applications. Leveraging the dual phase buck/boost controller LM5170's daisy chain configuration gives the design the ability to achieve 100A charging/discharging rates. Utilizing high accuracy constant (...)
레퍼런스 디자인
TIDA-01042 — 50A, 100A, 200A 애플리케이션용 모듈러 배터리 테스터 레퍼런스 설계
This reference design provides a modular battery test solution allowing users to have the flexibility to test batteries at different current levels with one design. This design leverages the TIDA-01041 reference design by providing two 100-A battery testers that can work independently or be (...)
레퍼런스 디자인
TIDA-010086 — Digital control cost-optimized 10-A battery formation and test reference design
This reference design provides a cost-effective solution for battery formation and test applications. This design uses the C2000™ real-time control MCU for high-resolution pulse-width modulation (PWM) generation, and constant-current (CC) and constant-voltage (CV)
control loops. It efficiently (...)
control loops. It efficiently (...)
레퍼런스 디자인
PMP30833 — 24V 또는 48V 출력을 지원하는 30W 2스위치 벅 부스트 레퍼런스 설계
LM5118에 의해 제어되는 이 두 스위치 벅 부스트 레퍼런스 설계는 30V ~ 60V의 입력 전압 범위를 24V 또는 48V 출력 전압으로 단계적으로 강화합니다. 디지털-아날로그 컨버터(DAC)의 점퍼 3은 점퍼 48VOUT을 사용하고 24VOUT이 없이 24V 또는 48V를 결정하는 데 사용됩니다. 최종 애플리케이션의 경우 48V 출력 전압은 1초 미만의 단기 사용에 필요합니다. 테스트 목적을 위해, 전력 스테이지는 전력 레벨을 지속적으로 견뎌내므로, 최종 적용을 위해 전력 스테이지를 축소할 수 있습니다.
Test report: PDF
레퍼런스 디자인
PMP15035 — 1000W, 양방향, 12V-12V 컨버터 레퍼런스 설계
This reference design is a dual-channel, bidirectional converter suitable for 12-V to 12-V, dual-battery system, automotive applications. This reference design has a wide input range (3 V to 40 V) and could give full load (1kW) in the input voltage from 9V to 18V by using two LM5170-Q1 (...)
레퍼런스 디자인
PMP10681 — 오토모티브 콜드 크랭크에 최적화된 3-42Vin, 5V@3A 벅-부스트 레퍼런스 디자인
This is a modified LM5118 2 switch buck-boost single inductor evaluation module (EVM) optimized to operate through automitive transients such as cold-crank. It is designed to provide 15W (5V, 3A) of output power with an input voltage range of 3V to 42V.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HTSSOP (PWP) | 20 | Ultra Librarian |
주문 및 품질
포함된 정보:
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
포함된 정보:
- 팹 위치
- 조립 위치