LM20125EVAL
5A、500kHz、PowerWise 同期整流・降圧 レギュレータ
LM20125EVAL
概要
The LM20125 is a full featured buck switching regulator capable of driving up to 5A of load current. The nominal 500 kHz switching frequency of the LM20125 reduces the size of the power stage components while still allowing for highly efficient operation. The LM20125 is capable of converting an input voltage between 2.95V and 5.5V down to an output voltage as low as 0.8V. Fault protection features include cycle-by-cycle current limit, output power good, and output over-voltage protection. The dual function soft-start/tracking pin can be used to control the startup response of the LM20125, and the precision enable pin can be used to easily sequence the LM20125 in applications with sequencing requirements. The LM20125 is available in an eTSSOP-16 package with an exposed pad for enhanced thermal performance.
特長
- Input voltage range 2.95V to 5.5V
- Accurate current limit minimizes inductor size
- 96% efficiency with 500 kHz switching frequency
- 32 mΩ integrated FET switches
- Starts up in pre-biased loads
- Output voltage tracking
- Peak current mode control
- Adjustable output voltage down to 0.8V
- Adjustable Soft-Start with external capacitor
- Precision enable pin with hysteresis
- Integrated OVP, UVLO, power good and thermal shutdown
- eTSSOP-16 exposed pad package
Applications:
- Simple to design, high efficiency point of load regulation from a 5V or 3.3V bus
- High Performance DSPs, FPGAs, ASICs and microprocessors
- Broadband, Networking and Optical Communications Infrastructure
AC/DC および DC/DC コンバータ (FET 内蔵)
購入と開発の開始
LM20125EVAL — 5A、500kHz、PowerWise 同期整流・降圧 レギュレータ
LM20125EVAL — 5A、500kHz、PowerWise 同期整流・降圧 レギュレータ
技術資料
| タイプ | タイトル | 最新の英語版をダウンロード | 日付 | |||
|---|---|---|---|---|---|---|
| * | EVM ユーザー ガイド (英語) | AN-1687 LM20125 Evaluation Board (Rev. B) | 2013/05/03 | |||
| 証明書 | LM20125EVAL EU Declaration of Conformity (DoC) | 2019/01/02 | ||||
| アプリケーション・ノート | Application Note 1687 LM20125 Evaluation Board (jp) | 2007/10/30 |