LM5146集成电路(IC)DC-DC开关控制器规格书PDF中文资料
厂商型号 |
LM5146 |
参数属性 | LM5146 包装为管件;类别为集成电路(IC) > DC-DC 开关控制器;产品描述:IC POWER REGULATOR |
功能描述 | - |
文件大小 |
6.03037 Mbytes |
页面数量 |
70 页 |
生产厂商 | Texas Instruments |
企业简称 |
TI【德州仪器】 |
中文名称 | 美国德州仪器公司官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-5-22 23:00:00 |
LM5146规格书详情
1 Features
• Functional Safety-Capable
– Documentation available to aid functional safety
system design
• Integrated EMI mitigation
– Selectable dual random spread spectrum
(DRSS) feature for enhanced EMI performance
across low and high-frequency bands
– Optimized for CISPR 32 Class B requirements
• Versatile synchronous buck DC/DC controller
– Wide input voltage range of 3.5 V to 80 V
– 1 accurate, fixed 3.3 V, 5 V, 12 V, or
adjustable output from 0.8 V to 55 V
– 150°C maximum junction temperature
– Lossless DCR or shunt current sensing
– Shutdown mode current of 2.3 μA
– No-load sleep current of 9.5 μA
– Internal soft-start ramp of 3 ms
– Stackable up to two phases
– Internal bootstrap diode
• Switching frequency from 100 kHz to 2.2 MHz
– SYNC in and SYNC out capability
– Selectable PFM or FPWM modes
• Inherent protection features for robust design
– Internal hiccup mode overcurrent protection
– ENABLE and PGOOD functions
– VCC, VDDA, and gate-drive UVLO protection
– Internal or external loop compensation
– Thermal shutdown protection with hysteresis
• Create a custom design using the LM5148 with
WEBENCH® Power Designer
2 Applications
• Building automation
• Industrial transport
• Power delivery
• Test and measurement
• Aerospace and defense
3 Description
The LM5148 is a 80-V, ultra-low IQ synchronous
buck DC/DC controller for high-current, single-output
applications. The controller uses a peak current-mode
control architecture for easy loop compensation,
fast transient response, and excellent load and line
regulation. The LM5148 can be set up in idual-phase
mode (paralleled output) with accurate current sharing
for high-current applications. It can operate at input
voltages as low as 3.5 V, at nearly 100 duty cycle if
needed.
The LM5148 has a unique EMI reduction
feature known as dual random spread spectrum
(DRSS). Combining low-frequency triangular and
high-frequency random modulations mitigates EMI
disturbances across lower and higher frequency
bands, respectively. This hybrid technique aligns with
the multiple resolution bandwidth (RBW) settings
specified in industry-standard EMC tests.
LM5146属于集成电路(IC) > DC-DC 开关控制器。美国德州仪器公司制造生产的LM5146DC-DC 开关控制器PMIC(电源管理集成电路)DC 到 DC 开关式控制器是用于高效率电路的稳压 IC,其配置为生成高于(突升或步升)或低于(突降或步降)输入电源的输出电源电压。其他拓扑结构可能包括:降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。
产品属性
- 产品编号:
LM5146QRGYRQ1
- 制造商:
Texas Instruments
- 类别:
集成电路(IC) > DC-DC 开关控制器
- 系列:
Automotive, AEC-Q100
- 包装:
管件
- 描述:
IC POWER REGULATOR
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI(德州仪器) |
23+ |
VQFN20(3.5x4.5) |
7350 |
现货供应,当天可交货!免费送样,原厂技术支持!!! |
询价 | ||
TI(德州仪器) |
23+ |
VQFN20(3.5x4.5) |
6000 |
询价 | |||
TI/德州仪器 |
21+ |
VQFN-20 |
6000 |
绝对有货,代理分销,价优南 |
询价 | ||
TI/德州仪器 |
24+ |
VQFN20 |
880000 |
明嘉莱只做原装正品现货 |
询价 | ||
TI(德州仪器) |
23+ |
NA/ |
8735 |
原厂直销,现货供应,账期支持! |
询价 | ||
Texas |
21+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
TI原 |
22+ |
VQFN-20 |
5000 |
十年沉淀唯有原装 |
询价 | ||
TI |
21+ |
SOT |
9850 |
只做原装正品假一赔十!正规渠道订货! |
询价 | ||
TI |
22+ |
VQFN (RGY) |
6000 |
原厂原装,价格优势!13246658303 |
询价 | ||
TI |
新批次 |
VQFN-20 |
4326 |
询价 |