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TEXAS INSTRUMENTS LM5119PSQE/NOPB
DC/DC控制器, 电流模式, 5.5V至65V, 2输出, 同步降压, 750kHz, LLP-32
- 制造商产品编号:
- LM5119PSQE/NOPB
- 库存编号
- 3008664
-
- ECAD / MCAD
-
产品概述
The LM5119PSQE/NOPB is a dual synchronous Buck Controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current-mode control utilizing an emulated current ramp. current-mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The switching frequency is programmable from 50 to 750kHz. The LM5119 drives external high-side and low-side NMOS power switches with adaptive dead-time control. User-selectable diode emulation mode enables discontinuous mode operation for improved efficiency at light load conditions. A high voltage bias regulator with automatic switch-over to external bias further improves efficiency.
- Easily configurable for dual outputs or interleaved single output
- Robust 3.3A Peak gate drive
- Programmable output from 0.8V
- Precision 1.5% Voltage reference
- Programmable current limit
- Hiccup mode overload protection
- Programmable soft-start
- Programmable line under-voltage lockout
- Automatic switch-over to external bias supply
- Channel2 enable logic input
- Thermal shutdown
- Green product and no Sb/Br
应用
电源管理, 车用, 工业, 通信与网络
警告
该设备内置静电防护措施有限, 存放时引线应短接在一起, 或将设备放置在导电泡沫中, 以防止静电对MOS门造成损坏.
产品信息
技术文档 (1)
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| 数量 | 价钱 (不含税) (含税) | 您所支付金额 (不含税) |
|---|---|---|
| 1+ | CNY60.60 CNY68.478 | ( ) |
| 10+ | CNY54.79 CNY61.9127 | ( ) |
| 25+ | CNY52.22 CNY59.0086 | ( ) |
| 100+ | CNY45.32 CNY51.2116 | ( ) |
| 250+ | CNY39.59 CNY44.7367 | ( ) |
| 500+ | CNY37.73 CNY42.6349 | ( ) |
| 数量 | 价钱 (不含税) (含税) | 您所支付金额 (不含税) |
|---|
定价不可用。 请联系客户服务。
1 (切割卷带 3008664) x 60.6 = CNY60.60
1 (切割卷带 3008664) x 68.478 = CNY68.478
总价: CNY60.60
( 不含税 )
总价: CNY68.48
( 含税 )
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