LM5165
- Wide input voltage range of 3 V to 65 V
- 10.5-µA no-load quiescent current
- –40°C to 150°C junction temperature range
- Fixed (3.3 V and 5 V) or adjustable output voltages
- Meets EN55022 / CISPR 22 EMI standards
- Integrated 2-Ω PMOS buck switch
- Supports 100% duty cycle for low dropout
- Integrated 1-Ω NMOS synchronous rectifier
- Eliminates external rectifier diode
- Programmable current limit setpoint (four levels)
- Selectable PFM or COT mode operation
- 1.223-V ±1% internal voltage reference
- 900-µs internal or programmable soft start
- Active slew rate control for low EMI
- Diode emulation mode and pulse skipping for ultra-high light-load efficiency performance
- Monotonic start-up into prebiased output
- No loop compensation or bootstrap components
- Precision enable and input UVLO with hysteresis
- Pin-to-pin compatible with the LM5166
- Thermal shutdown protection with hysteresis
- 10-pin, 3-mm × 3-mm VSON package
- Use TPSM265R1 module for faster time to market
- Create a custom regulator design using WEBENCH Power Designer
The LM5165 device is a compact, easy-to-use, 3-V to 65-V, ultra-low IQ synchronous buck converter with high efficiency over wide input voltage and load current ranges. With integrated high-side and low-side power MOSFETs, up to 150-mA of output current can be delivered at fixed output voltages of 3.3 V or 5 V or at an adjustable output. The converter is designed to simplify implementation while providing options to optimize the performance for the target application. Pulse Frequency Modulation (PFM) mode is selected for optimal light-load efficiency or Constant On-Time (COT) control for nearly constant operating frequency. Both control schemes do not require loop compensation while providing excellent line and load transient response and short PWM on-time for large step-down conversion ratios.
The high-side P-channel MOSFET can operate at 100% duty cycle for lowest dropout voltage and does not require a bootstrap capacitor for gate drive. Also, the current limit setpoint is adjustable to optimize inductor selection for a particular output current requirement. Selectable and adjustable start-up timing options include minimum delay (no soft start), internally fixed (900 µs), and externally programmable soft start using a capacitor. An open-drain PGOOD indicator can be used for sequencing, fault reporting, and output voltage monitoring. The LM5165 buck converter is available in a 10-pin, 3-mm × 3-mm, thermally- enhanced VSON-10 package with 0.5-mm pin pitch. The LM5165 and LM5165X is also available in the VSSOP-10 package.
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LM5165EVM-HD-C50X — LM5165 低 IQ 同步降壓轉換器高密度 COT 評估模組
LM5165EVM-HD-P50A — LM5165 低 IQ 同步降壓轉換器高密度 PFM 評估模組
LM5165EVM-HD-P50A 高密度評估模組 (EVM) 的設計目的在於展示 LM5165 高性能、超小型且具備超低 IQ 的同步降壓 DC/DC 降壓轉換器的性能。該模組樣式設計採用微型元件封裝，元件數量少。它可在 3V 至 65V 的寬輸入電壓範圍內運作，提供固定的 5V 輸出，設定點準確度優於 2%。當輸入電壓低於輸出電壓設定點時，透過高側 MOSFET 以 100% 占空比傳導的方式，可實現低壓差性能。憑藉 LM5165 的脈波頻率調變 (PFM) 控制方案與二極體模擬，在 24V 輸入時無負載電源電流僅為 12μA。
LM5165DESIGN-CALC — LM5165 DC/DC 轉換器設計工具
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需要支援 IEEE802.3bt 的 PSE 控制器嗎？進一步瞭解 TPS23881。
TIDA-01415 — 100W、高解析度、16 位元色彩可調、0.15% 可調光 RGBW LED 照明燈具參考設計
TIDA-01478 — 具有數位輸出和 DC/DC 的 IO-Link 參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRC) | 10 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。