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E-L4973D3.3-TR中文资料意法半导体数据手册PDF规格书
E-L4973D3.3-TR规格书详情
Description
The L4973 is a step down monolithic power switching regulator delivering 3.5A at fixed voltages of 3.3V or 5.1V and using a simple external divider output adjustable voltage up to 50V. Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical RDS(on) of 0.15Ω) to obtain very high efficiency and very fast switching times. Switching frequency up to 300KHz are achievable (the maximum power dissipation of the packages must be observed).
Features
■ Up to 3.5A step down converter
■ Operating input voltage from 8V to 55V
■ 3.3V and 5.1V (±1) fixed output, and adjustable outputs from:
– 0.5V to 50V (3.3 type)
– 5.1V to 50V (5.1 type)
■ Frequency adjustable up to 300kHz
■ Voltage feed forward
■ Zero load current operation (min 1mA)
■ Internal current limiting (pulse by pulse and HICCUP mode)
■ Precise 5.1V (1.5) reference voltage externally available
■ Input/output synchronization function
■ Inhibit for zero current consumption (100mA typ. at VCC = 24V)
■ Protection against feedback disconnection
■ Thermal shutdown
■ Output over voltage protection
■ Soft start function
产品属性
- 型号:
E-L4973D3.3-TR
- 制造商:
STMicroelectronics
- 功能描述:
Conv DC-DC Single Step Down 8V to 55V 20-Pin SO T/R
- 功能描述:
CONV DC-DC SGL-OUT STEP DOWN 20SOIC - Tape and Reel
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ST/意法 |
24+ |
NA |
990000 |
明嘉莱只做原装正品现货 |
询价 | ||
STM |
ROHS |
56520 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
ST/意法 |
23+ |
25600 |
原厂授权一级代理,专业海外优势订货,价格优势、品种 |
询价 | |||
STM |
24+ |
NA |
5000 |
只做原装正品现货 欢迎来电查询15919825718 |
询价 | ||
ST |
25+23+ |
SOP |
21821 |
绝对原装正品全新进口深圳现货 |
询价 | ||
ST |
24+ |
10000 |
询价 | ||||
STMicroelect |
23+ |
18-DIP |
8795 |
询价 | |||
E-L4978D |
785 |
785 |
询价 | ||||
STM |
23+ |
316 |
询价 | ||||
空 |
23+ |
SOP |
5000 |
原装正品,假一罚十 |
询价 |